THE INSECTS OF AUSTRALIA AND NEW ZEALAND BY R. J. TILL YARD M.A., Sc.D. (Cantab.), D.Sc.(Sydney), F.R.S., F.N.Z.Inst, F.L.S., F.G.S., F.E.S., C.M.Z.S.; Entomologist and Chief of the Biological Department, Cawthron Institute, Nelson, N.Z.; Crisp Medallist, Linnean Society of London (1917) ; formerly Linnean Macleay Fellow in Zoology, University of Sydney; Author of The Biology of Drag on flies With eight plates in colour by P. TILLYARD, M.A.(T.C.D.) AUSTRALIA: ANGUS & R O B E R T S O N , LTD., 89 C A S T L E R E A G H S T R E E T , S Y D N E Y 1926 w1"- PREFACE T H E present volume is intended primarily as a Text-book for use by students of entomology in Australia and New Zealand, secondarily for those who have a general interest in the Insect Life of these countries. Of many good arguments in favour of dealing with the Insects of Australia and New Zealand in a single volume, the chief seems to me to be that the New Zealand fauna is in itself so incomplete that a book on it alone would not give the student a fair knowledge of the extent and variety of insect life that exists in most parts of the world. In Australia, on the other hand, all the principal groups are well represented. Thus the New Zealand student can learn from this book, not only the large number of important types of insects missing from his own fauna, but also the relationship that exists between the Australian and New Zealand species of families common to both; while the Australian student will have his interest stimulated in a related fauna of which he knows at present all too little, and at the same time may gather something of the effect of the introduction of a considerable number of Australian insects into New Zealand. The limits of the work are obviously those of space. It was held to be essential that the student should have as complete a general outline as possible of the Classification and Morphology of Insects, before proceeding to study the more detailed accounts of the separate Orders. The economic aspect of the subject is so vast that it would require a separate volume in which to deal with it; at present, the author has had to be content with indicating the economic significance of e^ch Order in a short section in each corresponding chapter, and mentioning the more important economic insects in the accounts of their special families. The design of each chapter on the Orders of Insects is the same, and consists of sections dealing with Morphology, Life History, Distribution, Fossil History, Economics and Classification, followed by Keys to the Suborders, Superfamilies and Families, with accounts of all the families in each Order. At the beginning of the section on Classification in each chapter, a Scheme of Classification and Census of Species is given, in order to offer to the student a clear representation of the arrangement of Families and Superfamilies within each Order. A selected list of references is given at the end of each chapter, chiefly of works of fairly recent date. A Glossary of biological and entomological terms is added, for the use of the non-biological reader. It would have been impossible even to have considered undertaking a work covering so large a field, if it had not been for the generous promises of assistance made by numerous friends from the start, promises which were most liberally fulfilled when at last the work came to be undertaken. My thanks are due to my wife for the wash and colour X PREFACE work on outlines in pencil drawn by myself for many of the Plates; to Mr. W. C. Davies, Curator of the Cawthron Institute, for the photographs from which; the other Plates have been prepared; to Mr. A. Tonnoir, recently Research Student in Diptera, Cawthron Institute, now Assistant Curator, Canterbury Museum, Christchurch, Mr. A. Philpott, Assistant Entomologist, and Mr. E. S. Gourlay, Second Assistant Entomologist, Cawthron Institute, for the drawings from which the text-figures credited to them have been made. I also wish to express my deep indebtedness to Dr. A. JefTeris Turner of Brisbane for the construction of the fine Keys to the Lepidoptera (Heteroneura), for extensive and valuable notes on Australian Lepidoptera incorporated in Chapter xxviii, for much kindly criticism of the same chapter, and for very generous loans of material for study and figuring. To Mr. A. M. Lea, Entomologist of the South Australian Museum, Adelaide, I am equally deeply indebted for a set of valuable notes on Australian Coleoptera incorporated in Chapter xx, including an Australian census for the Order, for much valuable criticism of the same chapter and for the care taken in selecting the material sent on loan for study and figuring by the South Australian Museum, and especially for the loan of the rare Coleopterous Inquilines figured in Plate 16. My thanks are also due to the following for loans of specimens for study and figuring, and for valuable criticisms of the chapters dealing with the Orders named:—Orthoptera, Dr. A. Eland Shaw, Goodna, Q.; Isoptera, Mr. G. F. Hill, National Museum, Melbourne; Anoplura, Professor L. Harrison, Department of Zoology, University of Sydney; Hemiptera, Mr. F. Muir, H.S.P.A. Experimental Station, Honolulu, T. H., and Mr. J. G. Myers, Biological Laboratory, Wellington (the Key to the Fulgoroidea on page 165 is adapted from one prepared by Mr. Muir) ; Coleoptera, Mr. H. J. Carter, Wahroonga, N.S.W., Mr. T. Sloane, Moorilla, Young, N.S.W., Dr. E. W. Ferguson, Bureau of Microbiology, Sydney, and Mr. A. E. Brooks, Matamata, New Zealand, (including census of N. Z. Coleoptera) ; Hymenoptera, Mr. H. Hacker, Queensland Museum., Brisbane, and Mr. A. P. Dodd, Commonwealth Prickly Pear Board, Q.; Diptera, Dr. Ferguson, Mr. Tonnoir, and Mr. G. H. Hardy, Queensland University, Brisbane; Lepidoptera, Dr. G. A. Waterhouse, Killara, N.S.W., Mr. G. Lyell, Gisborne, Vic, and Mr. Philpott; General Morphology, Mr. A.. J. Nicholson, Lecturer in Entomology, University of Sydney. Gifts and loans of specimens for study and figuring are also gratefully acknowledged from the Queensland Museum, Brisbane, the Australian Museum, Sydney, the Macleay Museum, University of Sydney, the National Museum, Melbourne, the South Australian Museum, Adelaide, and from Mr. W. W. Froggatt, late Government Entomologist of N.S.W., Mr. W. B. Gurney, Government Entomologist of N.S.W., Mr. L. J. Newman, Government Entomologist of Western Australia, Mr. E. J. Dumigan, Bald Hills, Queensland, Mr. G. Goldfinch, Rose Bay, Sydney, Mr. W. H. Davidson, Mount Tambourine, Q., Mr. W. H. Mathews, Perth, W.A., and Mr. Erasmus Wilson, Melbourne. For valuable criticisms of chapter xxix and help in supplying geological maps and data for same, mly thanks are due to Mr. C. Hedley, Scientific Director of the Great Barrier Reef Committee, Professor W. N. Benson, Otago University, Dunedin, and Dr. A. B. Walkom, Linnean Society of N.S.W., Sydney. Nor must I omit to mention my PREFACE XI deep sense of the great value of the geological discoveries made by Professor C. Schuchert and Dr. C. O. Dunbar, of Yale University, New Haven, Co'nn., in the Lower Permian Insect Beds of Kansas, by Mr. John Mitchell, late Head of the Technical College, Newcastle, N.S.W., in the Upper Permian Insect Beds of Belmont, N.S.W., and Mr. B. Dunstan, Chief Government Geologist of Queensland, in the Upper Triassic Insect Beds of Ipswich, Q. Although this book has not dealt specifically with those finds^ the author feels that its plan has been greatly influenced by them and by the. unique opportunities of study afforded him by their discoverers. In compiling Chapter xxx, I have had the assistance of valuable suggestions made by Messrs. A. J. Nicholson, A. Tonnoir, and E. S. Gourlay, to all of whom my thanks are due for their help. The text-figures are almost all new, though a few have been redrawn from specimens or slides from which figures have already been made for a number of papers published by me in Proc. Linn. Soc. NSW., Trans. Ent. Soc. London, Trans. N.Z. Inst., Journ. Linn. Soc, London, Canad. Entom., N.Z. Journ. Sci. and Technology, Bull. Entom. Research, Mawson Austr. Antarctic Exped. Reports, Trans. Roy. Soc. W. Australia and Trans. Roy. Soc. S. Australia. Figs. F l , F2, FS, F l l , F20 and F21 are taken, with slight alterations, from The Biology of Drag on flies, and my thanks are due to the Cambridge University Press for permission to use them. Fig. D l is used by permission of the Committee on Printing of the Records of the Australasian Antarctic Expedition 1911-14. Fig. ZA10 is taken from: a block kindly lent by the Linnean Society of N.S.W. Fig. W5 is from Patton and Cragg's wellknown Text-book of Medical Entomology. Figs. Ol and 0 2 are from Professor L. Harrison's papers on Parasitology, 1916. Finally, I desire to express my deep gratitude to the Cawthron Trustees and to Professor T. H. Easterfield, Director of the Cawthron Institute, for the generous manner in which, they have extended to me permission and facilities for the writing of this book as part of the official programme of my work during the past three years. Without such permission, and without the full use of the splendid Cawthron Library and the apparatus of the Biological Department, it would have been quite impossible to undertake a work of this magnitude. Cawthron Institute, 19 November, 1924. RJ.T. CONTENTS I. CLASSIFICATION AND CENSUS • II. EXTERNAL MORPHOLOGY III. INTERNAL IV. LIFE V. VI. MORPHOLOGY HISTORY THYSANURA PROTURA VII. COLLEMBOLA VIII. PLECTOPTERA IX. ODONATA X. XI. ORTHOPTERA XII. ISOPTERA DERMAPTERA XIII. PERLARIA XIV. EMBIARIA XV. XVI. XVII. XVIII. XIX. /"( , £t/.v. ,1? (PARANEUROPTERA) (PLECOPTERA) ZORAPTERA COPEOGNATHA (PSOCOPTERA) ANOPLURA (INCLUDING MALLOPHAGA) THYSANOPTERA HEMIPTERA XX. COLEOPTERA XXI. STREPSIPTERA XXII. HYMENOPTERA XXIII. NEUROPTERA XXIV. MECOPTERA XXV. DIPTERA XXVI. SIPHONAPTERA XXVII. TRICHOPTERA XXVIII. XXIX. (APHANIPTERA) LEPIDOPTERA FOSSIL RECORD AND ORIGIN OF THE AUSTRALIAN AND NEW ZEALAND INSECT FAUNAS XXX. COLLECTION, SECTS APPENDIX I. APPENDIX II. INDEX .. PRESERVATION, .. GLOSSARY AND .. .. .. .. STUDY ABBREVIATIONS OF AUTHORS' NAMES .. ... OF IN PLATES ATLAS MOTH—Coscinoscera Hercules MISK. . . N E W Z E A L A N D INSECTS OP VARIOUS O R D E R S AUSTRALIAN O D O N A T A (ZYGOPTERA) AUSTRALIAN O D O N A T A (ANISOPTERA) AUSTRALIAN ORTHOPTERA, ISOPTERA, A N D H E M I P T E R A ORTHOPTERA A N D DERMAPTERA N E W ZEALAND ORTHOPTERA TERMITARIA, OR NESTS OP W H I T E A N T S P L E C T O P T E R A A N D PERLARIA AUSTRALIAN INSECTS OP VARIOUS O R D E R S HEMIPTERA AUSTRALIAN COCCID GALLS AUSTRALIAN COLEOPTERA AUSTRALIAN INQUILINE COLEOPTERA . . COLEOPTERA (ADEPHAGA TO STAPHYDINOIDEA) COLEOPTERA (CLAVICORNIA TO LAMELLICORNIA) COLEOPTERA (PHYTOPHAGA AND RHYNCHOPHORA) AUSTRALIAN HYMENOPTERA AND DIPTERA . . HYMENOPTERA .. .. AUSTRALIAN AND NEW ZEALAND AUSTRALIAN NEUROPTERA DIPTERA .. .. .. NEUROPTERA MECOPTERA AND TRICHOPTERA AUSTRALIAN AND NEW ZEALAND LEPIDOPTERA LARGEST AUSTRALIAN SWIFT MOTH—Leto stacyi AUSTRALIAN LEPIDOPTERA (HETEROCERA) NEW ZEALAND LEPIDOPTERA PALE SPECIES DOPTERA OF AUSTRALIAN AND NEW LARGEST AUSTRALIAN HAWK MOTH—Coequosa AUSTRALIAN LEPIDOPTERA (RHOPALOCERA) Sc. 27, 30, 32, 3 ZEALAND LEPI 33 triangularis Do* 34 . . 40, 41 42, 43, 44 CHAPTER XXII Order HYMENOPTERA (Saw-flies, Ichneumon-flies, Wasps, Ants, Bees). Characters. This is one of the most distinct of all Orders of Insects, easily recognized by the stiff membranous wings coupled together in flight by means of a series of minute hooks? by the close union of the first abdominal segment with the thorax, an*d by the presence of a complete ovipositor in the female, often specialized as a sting. FIG. Tl. Perga dorsalis Leach., female, Australia. Suborder Chalastrogastra, fam. Tenthredinidae. Length 26 mm. Lettering as in Table on p. 258, New Notation. [JE7. 8. G-ourlay del. I H e a d of very variable shape, but usually rather broad, with / compound eyes well developed (except in a few blind, wingless forms) and wide apart; three ocelli usually present in a triangle on vertex. Antennae usually with scape, pedicel and a variable number of similar segments forming a flagellum, usually filiform or somewhat thickened, more rarely moniliform or pectinate; in some forms the scape is lengthened and the antennae elbowed between it and the other segments; in others, the flagellum may become specialized into ring-segments, funicle and terminal club (see Chalcidoidea, p. 271); in the highest groups the antennae have 13 segments in the male, 12 in the female. CHARACTERS * 253 Mouth-parts strongly mandibulate; labrum entire; mandibles hard, toothed; maxillae usually with lacinia, galea and five- or six-segmented palp; hypopharynx well-developed, tongue-like; labium usually with 4- FIG. T2. Exeirus lateritius Shuck., male, Australia. Suborder Clistogastra, fam. Exeiridae. Length 30 mm. Lettering as in Table on p. 258, New Notation, except r = lr-\-2r in forewing. IE. S. Gourlay del. segmented palpi and well-developed ligula, with fused glossae and separate, small paraglossae (fig. T3). j The mouth-parts of the wasps and short-tongued bees only differ from the ordinary type in reduction of the size of the palpi, together with some slight specializations in structure of the labium and maxilla (fig. T3, D, E ) . In the long-tongued bees, however, a great change is noticeable; the maxillary~pa1pt_aTe^?Stly reduced, but the galea, labial palpi and the fused glossae all become greatly elongated, the lastnamed forming the "tongue," and ending in a small spoon (fig. T3, F, sp) for the extraction of nectar. Further, both maxillae and labium are hinged, the former between cardo and stipes, the latter between submentum and mentum, so that the whole proboscis can be easily withdrawn and folded down close to the head when not in use. j T h o r a x usually very compact, strongly chitinized, remarkable for the more or less complete fusion with it of the first abdominal / segment, called the prop odeum or median segment. The fused mass formed by union of thorax with propodeum is called the alitrunk (figs. T4-T6). Usually the prothorax and mesothorax aredistinct, but the propodeum is closely fused with the reduced , metathorax. Prothorax generally short but broad, the pronotum usually with two large side-lobes extending back as far as the tegulae; in some forms (fig. T6) the prothorax is merely a very short neck or collar, and the side lobes do not reach the tegulae. Mesothorax very large; mesonotum with large scuMwi, often divided into a central piece and two side-lobes called parapsides; behind it lies a large CHARACTERS 254 scutellum; axilla of forewing strongly developed; in front of each axilla is a small lateral sclerite called the tegula; the position of the posterior ends of the side-lobes of the pronotum with respect to the tegulae is of great importance in classification (figs. T4-T6). Mesopleura FIG. T3. Mouth-parts of Hymenoptera. A, maxilla of Paniscus sp., fam. Ichneumonidae (X 40) ; B, labium and Hypopharynx of same, lateral view (X 5 0 ) ; C, ditto, dorsal view (X 5 0 ) ; D, maxilla of Hylaeus (Prosopis) capitosus Sm., fam. Hylaeidae (X 40) ; E, labium and Hypopharynx of same, lateral view (X 50) ; P, right maxilla and labium of Anthophora cingulata Fabr., fam. Anthophoridae (left labial palp and paraglossa omitted), lateral view, dissected (X 1 6 ) ; c, cardo; ga, galea; gl, glossa; hy, Hypopharynx; Ic, lacinia; lp, labial palp; mt, mentum; mxp, maxillary palp; pg, paraglossa; sd, salivary duct; sm, submentum; sp, nectar-spoon at tip of tongue; st, stipes; t, tongue ( = elongated fused glossae). [JR. J. T. del. well-developed; mesepisternum usually broad, sometimes with a distinct piece in front of it called the prepectus (figs. T5, 6, pet) lying beneath the tegula and behind the pronotal side-lobe; mesepimeron usually narrow. Mesosternum well-developed, sometimes divided by a median groove or sulcus. Metathorax distinct and fairly well developed in the oldest groups, but usually shortened, the metanotum very short, compressed close up to or even partly beneath the mesoscutellum; metapleura undivided. Prop odeum (first abdominal segment, but dealt with here for convenience) short in the oldest groups, but often greatly enlarged and very convex in the higher (figs. T5, 6 ) , closely attached to metathorax. A pair of spiracles (sp!) lie a little below the axillae of the forewings, and a second pair (sp2) on the sides of the propodeum. Legs 255 HYMENOPTERA always well-developed, all three pairs generally similar; coxae usually short, sometimes elongated; trochanters small, either simple or divided more or less distinctly into two segments (fig. T7) ; femora stout, some- FIG. T4. Lateral view of alitrunk of Pergo dorsalis Leach, fam. Tenthredinidae. Lettering as in fig. T6. [R. J. T. del. FIG. T5. Lateral view of alitrunk of Calopompilius defensor Sm., fam. Psammocharidae. Lettering as in fig. T6. [.R. J. T. del. FIG. T6. Lateral view of alitrunk of Sceliphron laetum Sm., fam. Sphecidae ; ex, coxa ; epm, epimeron ; eps, episternum; fw, forewing; g, gaster; hw, hindwing; Ih, lobe of prothorax; msn, mesonotum; mtn, metanotum; mtp, metapleuron ; pet, prepectus; prn, pronotum; prp, propodeum ; p%, petiole ; <sc, scutellum ; sp, spiracle.; tg, tegula. IR. J. T. del. times clubbed distally or basally; tibiae slender, often thickened distally, frequently with a pair of apical spurs; tarsi usually with five segments, (reduced to 4 or 3 in some parasitic forms), the first usually much longer than the others; last segment with a pair of strong claws and an empodium. If W i n g s (fig. T9) folded in repose flat along back of abdomen, I one above the other, never held roof-wise. Jmrewing larger than hind, / and connected with it in flight by a more or less extensive senes~oTc tiny 'j hooks or hamuli (ham) situated on the costa of the hindwing so as to -/ engage the recurved posterior margin of the forewing at or before the / end of 1A. Membrane of wings very strong, glassy. Venation remarkably modified, both main veins and cross-veins usually very strongly ( formed, arranged so as to divide the wing into a limited number of closed \ cells of irregular shape and rather large size. Forewing frequently with a well-developed pterostigma (pt) of hardened chitin; hindwing with or without a distinct, folded, anal lobe. The venational scheme, so different from that of all other insects, received its own special notation from Jurine more than a hundred years ago, and this is still in general use by systematists of the Order. More recently the Comstock-Needham Notation has been applied by MacGillivray, but with great difficulty, CHARACTERS 256 owing to the failure tif the nupal tracheation to offer reliable evidence. This writer has compared the venation of the Order in minute detail with that of the Dipterous family Bombyliidae, and his hypothesis assumes a closely parallel line of evolution between the two, for which, FIG. T7. A, hind leg of an Ichneumon, Paniscus productus Brulle, fam. Ichneumonidae; B, hind leg of a Sphecoid Wasp, Sceliphron laetum Sm., fam. Sphecidae; ex, coxa; fm. femur; £b, tibia; tr, trochanter; ts, tarsus. Li2. J. T. del. however, not a single shred of evidence is forthcoming. This interpretation, given in the second column of the Table on p. 258, has led to such a complicated notation for certain of the main veins that it has proved unwieldy in practice. Only very recently the wings of the ancestors of the Order have come to light in the Lower Permian of Kansas, so beautifully preserved that the whole of the homologies of the veins at once become clear and of the utmost simplicity. Three genera of these Protohymenoptera occur, one with fore and hindwings in situ. The stiff glassiness of the membrane of these wings is most marked, as is also the strong formation of the pterostigma. FIG. T8. A , forewing of Protohymen permianus Till. Length 11 mm.; B, pterostigma and apex of forewing of Permohymen schucherti Till. Order Protohymenoptera, Lower Permian of Kansas. Lettering as in Table on p. 258, New Notation, except R2+3, Ri+^, branches of Rs, and some additional cross-veins. IR. J. T. del. Fig. T8A shows the fore wing of Protohymen permianus Till., while fig. T8B shows the pterostigmatic area of Permohymen. The hindwing of the latter was slightly shorter, considerably broader basally, the venation not reduced as in Hymenoptera, and no hamuli present. These wings support the evidence of the early pupal wings of Hymenoptera, in which the main-veins are well-formed but the cross-veins either absent or only faintly indicated (except sometimes, mcu2 and icu8) ; in particular, the absence of rmx and rm2 is mostly striking, these being obviously weak 257 HYMENOPTERA cross-veins in Jurassic Hymenoptera. The points to notice in the fossil wings are the very narrow costal area, (in which, however Sc remains distinct), the encroachment of the pterostigmatic thickening in Permohymen as far as Rs, the apical position of the reduced Rs, (still present FIG. T9. Wings of Birex juvencus L., male, New Zealand (introd.), fam. Siricidae. A, to show veins; B, to show cells, etc. Lettering as in Table on p. 258, New Notation; except ham* hamuli. , • . IR. J. T. del. in Sirex), the three-branched condition of M, retained only in the Xyelidae (not Australian), the already strong development of mcuu the anbranched Cul9 and the generalized anal area bordered by a separate Cut and with two anal veins; also the general Mecopteroid arrangement of the cross-veins. From this condition the Hymenopterous venation evolved (1) by reduction of hindwing (as in Plectoptera) with consequent specialization of anal area of forewing, Cu2 fusing with 1A and the posterior margin becoming straight, (2) -by fusion of M± with remnant of Rs distally, and usually partial or nearly complete reduction of Mo, and (3) by addition of one or two cross-veins (rm±, rm2) below pterostigma, and gradual switching, in higher types, of the attachment of M1+2 from its original base, first to rm±, then to rnh. In the Table on p. 258, the homologies of the veins, cross-veins, and cells are given in full for the New System, the Comstock-Needham System and the Old or Jurinian* System. *Named in honour of L. Jurine, in whose fine work "Observations sur les ailes des HymenoptSres" (Mem. R. Ac. Sci. Torino, 1820, xxiv, pp.177-214, six plates) it was first set forth. 258 HYMENOPTERA TABLE OF H Y M E N O P T E R O U S W I N G V E N A T I O N Comstock-Needham Old or Jurinian New Syste m. Notation. System. Name. Notation. (after MacGillivray). Name. Mam Veins :— Costa Costa C C Sc — Sc Subcosta Sc+R+M Subcostal Sc+R+M Principal Vein or R+M Radius R — R — Radial Sector Rs •Ri Cubitus Media Rs & M M Radial 1st branch Mt R* — 2nd branch M2 Rs 3rd branch M + M1+2 + Mi + i?4+5 Cubital M 3+ 4 Basal piece of 1st transverse cubital M1+2 r-m M1+2 — Cubitus Cu Cu Median 1st branch* Cu-i Cu+CuA-M*+M*+ m+M2. 2nd branch Cu2 1A 1st Anal Anal 1A 2A Accessory2nd Anal \ 2A 3A Cross-veins:— Radial (basal piece) 1st radio-median rmt Rs (basal piece) 2nd „ rm2 1st inter-median 2nd transverse cubital imi i R5 R 2nd „ im2 3rd „ „ ! < I (including basal piece I of M2) Basal 1st medio-cubital tncth. m-cn 2nd „ 1st Recurrent mcu2 ; M3+4 3rd ^ „ 2nd „ mcuz I M2 1st inter-cubital icui .— Cu2 1 2nd „ 1st transverse icih Cui+M* 3rd „ icuz — Mz — cua Cubito-anal ^~ Cells:— Costal c \ c Costal 1st subcostal Sc lsc 2nd ' — Sci 2sc Pterostigma Pterostigma pt : pt 1st Radial Ir R 1st cubital 2nd „ 1st radial 2r 1st Rt 1 -3rd „ 3r 2nd R2 2nd „ Apical — ap Appendiculate 1st Median. lm 2nd cubital R* 2nd „ 2m 3rd „ \ R* 3rd „ 3m 4th „ 1 R* 4th „ R2 4m M* 1st Submedian 1st discoidal Ism 2nd 1st M2 2sm 2nd 3rd 1st posterior 3sm Mx Basimedian bm subcostal M Basicubital | Cu bcu median 1st Cubital Cut 3rd discoidal leu 2nd „ Ms 2cu 3rd „ 3cu 2nd M2 2nd posterior 1st Subcubital lscu 1st A lanceolate (hindwing) 2nd 2scu 1st A lanceolate (forewing ) Anal 2nd A anal a Subanal sa ! 3rd A — •That portion of Cu^ which lies between mcu2 and icus, and is often considerably bent, is known in the Jurinian System as the discoidal vein; the following portion, from icus to mcu3 is called the sutdiscoidal vein. Usually the discoidal vein is considered to run to the wing-margin, i.e., it includes icu3, and the subdiscoidal vein is then spoken of as arising above, at, or below the middle of the discoidal vein, according to the comparative lengths of icus and the part of Gut basad from it. In the MacGillivray notation the discoidal vein is interpreted as Ms (to wing-margin) and the subdiscoidal vein as a cross vein m. L • 1 f • — 259 . HYMENOPTERA / A b d o m e n with ten segments, of which the first (propof/deum or median segment) is attached closely to the thorax (see p. 254). * The second segment is normal in the oldest groups, but in all the rest it becomes constricted into a petiole or waist. The rest, called the gaster* may have all the segments visible dorsally or the terminal ones may be withdrawn so that only from three^ to six segments can be seen dorsally, as in the higher groups. Tergites usually strongly chitinized, extending laterally downwards so as partially to overlap the sternites which are also frequently very hard, though sometimes soft and with a median, longitudinal, ventral fold. Abdomen generally sipooth and shiny, but very hairy in some wasps and most bees. Male with complex genitalia partly or wholly concealed. The clasping apparatus is formed by the gonocoxites of the ninth segment with their terminal styles; there is also a well developed aedeagus, formed from the penis and its parameres. The tenth segment is much reduced, forming a small proctiger carrying the anus and a pair of short cerci, which are sometimes segmented. Female with a complete ovipositor formed from the three pairs of original gonapophyses, one on seg. 8 and two on seg. 9. In the older groups, this ovipositor is used only for its original purpose, and is either a horny process for laying eggs in wood, or ___jl£Yeloped into saws for cutting open the leaves or stems of plants. In the parasitic groups, it becomes a slender terebra, often of great length, for placing the eggs in the host-insect; while in Ants, Wasps and Bees it is developed as a weapon of offence, or sting. In each case, the ventral j valves of seg. 8 form the actual boring or stabbing organ, and are j ^jcalled the jpiculae^ In the terebra and the sting, they are exceedingly slender, finely toothed or barbed towards their apices; in the Saw-flies, they become specialized as the saws, the whole or the greater part of their lower edges being armed with minute teeth or serrated ridges of complex pattern. The inner valves of seg. 9 became the guide of the terebra or the director of the sting, which is in each case a single grooved organ formed by fusion of the two original gonapophyses; the director is a highly specialized guide furnished with two longitudinal beads in its groove, by means of which the spiculae are held in place. In the Sawflies these valves remain separate, becoming the supports of the saw. The dorsal valves, or gonocoxites of seg. 9, form the outer sheaths of the ovipositor or sting, protecting it from injury; in the parasitic groups, they are not developed, leaving the terebra free. Spiracles eight pairs in the older groups, placed on the sides of the tergites; the number is reduced in some of the parasitic groups, e.g., in Chalcidoidea, where only two pairs are present, on segs. 1 and 8 respectively. Malpighian tubules numerous, this being the only polynephric Order within the Endopterygota. Life History. The egg (fig. T10) is generally elongate oval in shape, not sharply pointed, without sculpture. The larvae fall into two distinct types; the phytophagous, caterpillar-like larva of the Saw-flies and allies, and the parasitic or cell-fed grub of the higher groups. The former has a large head with strong mandibles, and usually all three pairs of thoracic legs; in many of the leaf-feeding forms, a series of abdominal prolegs is developed, up to as many as eight pairs; these prolegs are never arranged, as in Lepidoptera, on segs. 3-6 and 10 only, and appear to be newly-developed organs rather than the vestiges of true *This item is used chiefly in the Ants (p. 287), but may conveniently be extended to other groups not having a constriction between gaster and petiole. L I F E HISTORY 260 FIG. T10. Eggs of Perga dorsalis Leach, in situ in leaf of Eucalyptus. Australia.. Fam. Tenthredinidae (X 1.1). [A. Tonnoir del. FIG. T i l . Larva of Perga dorsalis Leach (X 1.4). FIG. T12. Larva of Eumenes latreilli Sauss. (x 3). [A. Tonnoir Australia. del. Fam. Eumenidae. [A. Tonnoir del. segmental abdominal appendages. In the higher types the head becomes much reduced, the legs are lost and the larva becomes a whitish or cream-coloured grub. Such grubs feed in one of the following ways:— 1. As an internal parasite in the still living, active host, or in' an insect egg, (Ichneumonoidea, Chalcidoidea, Proctotrypoidea, Bethyloidea). 2. As an external parasite on Homoptera (Dryinidae). 3 . As a gall-forming parasite of the leaves, buds or stems of plants (Cynipoidea and some Chalcidoidea). 4. As an external parasite, devouring the paralyzed host provided by the mother, either in burrows or closed-up cells (most Vespoidea and Sphecoidea). 5. Living in a nest or cell and fed by adult workers of the species (Formicoidea and Vespidae). 6. Living in a closed cell stored with plant products (honey or bee-bread), (most Apoidea). 7. As a secondary parasite on (3), (4) or (5) (Chrysidoidea, some Chalcidoidea, a few Vespoidea and Apoidea.) The pupa (fig. T13) is a pupa libera, usually enclosed in an oval cocoon, spun with coarse, viscous silk from the mouth of the larva. The cocoons of Saw-flies are placed in the soil, singly or in masses; those of the higher groups may be of coarse, pale silk, or brownish and papery in consistency; some forms pupate within the body of the host or in the cell without a cocoon. In some of the Saw-flies the larva undergoes an extra ecdysis within the cocoon, often walling up this shrivelled skin in a separate, closed chamber at the posterior end; it- 261 HYMENOPTERA then appears as a whitish prepupa with wing-rudiments, which later on changes to a true pupa by a fresh ecdysis. The total number of instars is variable, but does not exceed six. The imago sheds the delicate pupal covering within the cocoon and cuts its way out with its powerful mandibles. Generally speaking, females are much more abundant than males in this Order; many parasitic types are parthenogenetic for considerable periods, and, in others, the males only live for a short time. Distribution. The Order is remarkably well lepresented in Australia by more than 6000 described species, while many more remain to be discovered. The most abundant families are the Encyrtidae (652), Formicidae (627), Eulophidae (587), Thynnidae (438), Hylaeidae (318), Scelionidae (317), Andrenidae (265), Mutillidae (197), Pteromalidae (190), Chalcididae (167), Eumenidae (160), Mymaridae (159), Colletidae (137), and Megachilidae (123). Almost all the prinFIG. T13. Pupa of Exeirus lateritius cipal families are represented, and one, the Shuck. (x 2). AusLarge tralia. Fam. Exeiri- Megalyridae, is peculiar to Australia. dae. [A. Tonnoir del. and showy species are abundant, especially amongst the Saw-flies and Wasps. In New Zealand the Order is very poorly represented by little over 300 species*; there are no Saw-flies, no Siricidae, only one native Xiphydriid and one Oryssid,.no Chrysididae, no Vespoidea except Psammocharidae, and very few Sphecoidea, Ants and Bees. Fossil History. The Order is abundantly represented in Tertiary strata by forms differing little from those of to-day, ants and bees being fairly numerous. In Mesozoic beds the only known forms are the large Horntails of the genus Pseudosirex, from the Upper Jurassic of Bavaria, which closely resembled those of the present day, but had a simpler venation with only a single cross-vein rm in the forewing. The geological history of the Order has recently been much more fully unfolded by-the discovery of representatives of a new Order, Protohymenoptera (fig. T8) in the Lower Permian of Kansas. It also appears probable that the Upper Carboniferous fossil Sycopteron symmetricum Bolton from Commentry, France, belongs to this latter Order. Thus the history of the Hymenoptera can be traced back to the earliest known insect-bearing strata, though the Order itself appears to have been the latest of all to evolve, except perhaps the Lepidoptera. / Economics. Apart from the Saw-flies, (which are highly injurious insects, many of the species doing great damage to fruit trees, forest trees and shrubs), the Cynipoidea and a few Chalcidoidea (which make galls on trees and plants), and a few obnoxious ants and wasps having a taste for fruit and household stores, this Order must be reckoned the most highly beneficial of alLQrders of Insects. The unceasing work of the thousands "of parasitic Hymenoptera is the principal factor in the maintenance of the balance of insect-life, whereby hosts of injurious species of beetles, flies and moths are prevented from overrunning the world. The studv of the life-histories of such forms, and the utilization *Including undescribed species known to exist in collections. HYMENOPTERA 262 of t h e i r a i d i n c h e c k i n g i n t r o d u c e d p e s t s , is o n e of t h e chief h o p e s of the f u t u r e for economic biology. A n t s , too, o n t h e whole, a r e highly beneficial i n r e m o v i n g a n d d e s t r o y i n g a n i m a l a n d v e g e t a b l e d e b r i s , t h o u g h s o m e u n d o u b t e d l y offset t h i s b y t h e f o s t e r i n g c a r e w h i c h t h e y l a v i s h on aphids a n d scale-insects. T h e H o n e y Bees supply m a n k i n d w i t h t h e one universally valued insect-food,—honey ; while bees a n d flower-wasps a r e r e s p o n s i b l e f o r t h e f e r t i l i z a t i o n of c e r t a i n f r u i t - t r e e s a n d f o d d e r c r o p s , a s w e l l a s of m a n y g a r d e n flowers. C L A S S I F I C A T I O N SCHEME OF CLASSIFICATION AND CENSUS OF SPECIES Order HYMENOPTERA 6249 (311) T E N T H R E D I N O I D E A 82 (2) Suborder 1. 2. 3. 4. CHALASTROGASTRA <^f^a 82 (2) SlRICIDAE XlPHYDRIIDAE 1 ( 1 ) TENTHREDINIDAE 80 ORYSSIDAE 1 (1) (0) Suborder C L I S T O G A S T R A 6167 (309) ICHNEU/MONOIDEA310(107) V I I I . F O R M I C O I D E A 627 (18) II. 5. MEGALYRIDAE 19 * 6. ,7. ^ { 8. 10. STEPHANIDAE 7 (0) 35. EVANIIDAE 70 ( 2 ) ' ICHNEUMONIDAE 1 1 8 ( 7 0 ) BRACONIDAE 96 (31) ALYSIIDAE 0 (4) I I I . C Y N I P O I D E A 7 (1) 11. CYNIPIDAE 3 (0) 12. FIGITIDAE 4 (1) IV. C H A L C I D O I D E A 2284 (90) 13. CHALCIDIDAE 167 (0) vl4. PERILAMPIDAE 49 (1) EuCHARITIDAE 48 ( 2 ) Y15. 16. CALLIMOMIDAE 86 (2) v 17. AGAONTIDAE 9 (0) v 18. EURYTOMIDAE 8 8 ( 1 1 ) 19. CLEONYMIDAE 44 (0) v 20. PTEROMALIDAE 190 (20) w 2 1 . ENCYRTIDAE 652 (12) /22. EULOPHIDAE 587 (34) 23. ELASMIDAE 100 (4) ,24. TRICHOGRAMMATIDAE 105 (1) v25. MYMARIDAE 159 (3) V. PROCTOTRYPOIDEA 26. 27. 28. 29. 30. 31. FORMICIDAE 627 (18) (0) 527 (45) BELYTIDAE 20 (26) DIAPRIIDAE 77 (11) PROCTOTRYPIDAE 9 ( 4 ) CERAPHRONIDAE 84 (0) SCELIONIDAE 317 (2) PLATYGASTERIDAE 20 (2) IX. V E S P O I D E A 991 (13) 36. 37. 38. 39. 40. 41. 42. 43. X. TRIGONALIDAE 3 (0) PSAMMOCHARIDAE 1 0 0 ( 1 3 ) T H Y N N I D A E 438 (0) SCOLIIDAE 49 (0) MUTILLIDAE 197 (0) EUMENIDAE 160 ( 0 ) MASARIDAE 22 (0) VESPIDAE 22 ( 0 ) ^ S P H E C O I D E A 359 (14) 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. XL AMPULICIDAE 10 (0) EXEIRIDAE 1 (0) STIZIDAE 7 (0) ARPACTIDAE 28 (2) NYSSONIDAE 44 (6) NITELIDAE 4 (0) LARRIDAE 53 *^4) P H I L A N T H I D A E 25 (0) BEMBECIDAE 27 (0) PEMPHREDONIDAE 21 (0) TRYPOXYLIDAE 57 (4) SSPHECIDAE 48 (0) CRABRQNIDAE 34 (4) A P O I D E A 925 (19) / 5 7 . COLLETIDAE 1 3 7 ( 8 ) 58. HYLAEIDAE 318 (8) 59. ANDRENIDAE 265 (3) 6 0 . NOMADIDAE 1 ( 0 ) 61. MELECTIDAE 15 (0) VI. B E T H Y L O I D E A 97 (2) 62. ANTHOPHORIDAE 17 (0) 32. BETHYLIDAE 38 (2) 63. MEGACHILIDAE 123 (0) 33. DRYJNIDAE 59 (0) 64. XYLQCOPIDAE 3 (0) 65. CERATINIDAE 37 (0) VII. C H R Y S I D O I D E A 40 (0) 66. APIDAE 9 ( 0 ) 34. CHRYSIDIDAE 40 (0) - T h e t o t a l s for A u s t r a l i a n V e s p o i d e a , S p h e c o i d e a a n d A p o i d e a h a v e b e e n s u p plied b y M r . H . H a c k e r ; t h a t for A u s t r a l i a n F o r m i c i d e a b y M r . J . C l a r k , B a s t P e r t h , W . A . ; t h o s e for A u s t r a l i a n C h a l c i d o i d e a w e r e o b t a i n e d b y a d d i n g r e c o r d e d s p e c i e s b y o t h e r a u t h o r s t o M r . A. A. G i r a u l t ' s t o t a l s ; t h e N . Z . c e n s u s i n c l u d e s a n u m b e r of u n d e s c r i b e d s p e c i e s k n o w n t o e x i s t i n c o l l e c t i o n s . CLISTOGASTRA 266 segment. The larva is always a legless grub. The Suborder contains nine Superfamilies, distinguished by the following Key:— 1. Ovipositor issuing from ventral surface of abdomen, usually well before the tip. ^ 2 Ovipositor or sting issuing from tip of abdomen. 4 2. Forewing with well developed pterostigma (rarely slender or linear), venation usually well-developed; antennae usually with more than 16 segments; trochanters always distinctly two-segmented; abdomen generally soft ventrally, with a longitudinal median fold. II. I C H N E U M O N O I D E A ^ Forewing without a pterostigma; venation very incomplete; antennae usually with not more than 16 segments; trochanters variable; abdomen without a longitudinal fold; mostly very small insects. 3 3 . Sides of pronotum extending back to tegulae; antennae not elbowed; trochanters with a single segment. III. CYNIPOIDEA Sides of pronotum not extending back to tegulae; antennae more or less distinctly elbowed (except in Mymaridae) ; trochanters small, frequently more or less distinctly divided into two segments. IV. C H A L C I D O I D E A 4. Abdomen with seg. 2 (and sometimes seg. 3 also) constricted off from the remainder to form a small, distinct nodule or petiole. VIII. FORMICOIDEAAbdomen with seg. 2 not constricted off from rest. 5 5. Medium to large, brilliantly metallic forms, with sides of pronotum not extending back to tegulae; hindwing without any closed cells, and with a strong anal lobe separated from rest of wing by a deep cleft; abdomen with only three visible dorsal segments; ovipositor tubular and retractile. VII. CHRYSIDOIDEA Not such insects. 6 6. Small to minute, parasitic forms (rarely up to 6 mm.) ; forewmg with no closed median cells (with at most a single closed cubital cell), often with venation greatly reduced or entirely absent; hindwing with at most a single basal cell, viz., the basirnedian (subcostal). 7 Medium to large forms, (very rarely under 5 mm.), mostly predatory or nectar-feeding (a few parasitic) ; forewing with venation complete or nearly so, having at least one closed median cell (two closed cubital cells) ; hindwing with two basal cells, viz., btn and bcu (subcostal and median) (open or incompletely closed in Mutillidae), and usually with two veins extending distally from them. 8 7. Fore femora either greatly swollen or strongly clubbed basally; hindwing with a small but distinct anal lobe, well separated from rest of wing. VI. B E T H Y L O I D E A Fore femora either not swollen, or only clubbed distallv; hindwing without sin anal lobe. V. P R O C T O T R Y P O I D E A 8. Sides of pronotum reaching back to tegulae. IX.-. V E S P O I D E A ^ Pronotum shortened, more or less collar-like, with its sides not reach-, ing back to tegulae. 9 f 9. Hairs on body simple or only twisted; hind tarsi slender, with seg. 1 ' of normal form. X. S P H E C O I D E A Hairs on body mostly branched or feathefed; hind tarsi with seg. 1 enlarged, usually densely haired. XI. A P O I D E A y Superfamily II. I C H N E U M O N O I D E A . This group contains the Ichneumon-flies and their allies, including the Longtailed ^Wasps, which are peculiar to Australia. The venation (figs. T16-19) of the forewing is fairly complete, with pterostigma present; but Sc is absent, the base of M is fully aligned with mcu±, and very often the succeeding piece of M h missing; this leads to forms in which mcu2 becomes aligned with the succeeding piece of M; the distal stump of the missing piece, if present, is called the ramellus. Further, the cross-vein rmi may become aligned with Mx+2, the basal piece of the latter vein being eliminated. The ovipositor issues ventrally from the abdomen well before the tip, and the trochanters are divided into two seg^ments. ^ The species are usually of slender, graceful build. The larvae are all parasitic, a very large number of them on Lepidopterous, Dipterous and Saw-fly 271 HYMENOPTERA viz., c-\-sc, bm. (=zlr-{-2r)t 3r (called the marginal cell) and sometimes also a small lm (called the areolet). There is never a thickened pterostigma, and the hindwing has no anal lobe. The group differs from the Proctotrypoidea in having the ovipositor issuing from the abdomen well before the tip; this organ is beautifully constructed and very mobile, with long, delicate spiculae which can be coiled up and withdrawn into the abdomen; it resembles most closely the ovipositor of the Oryssidae. The two families here dealt with may be separated as follows:— Abdomen with tergites extending laterally downwards so as to enclose and hide from view all the sternites except near apex. Fam. 12. FIGITTDAE Abdomen with tergites normal, not extending downwards; most of the sternites visible. Fam. 11. CYNIPIDAE Family 11. Cynipidae [Aus. 3, N.Z. 0]. In Australia the paucity of species of gall-wasps is in marked contrast with their abundance in other countries ; most of the galls found in Australia are made by Coccidae. Hypodiranchis aphidis Frogg. was bred from peach aphis, and may therefore be an introduced species. Eucoela gracilicornis Cam. and Aulax hypochaeridis Kieff. are common introduced species in New Zealand, the latter forming galls in the stems of Cat's Ear (Hypochaeris radicata). A few undescribed native species exist in Australian collections. Family 12. Figitidae [Aus. 4, N.Z. 1]. The genus Anacharis is represented by a single species in each country (A. australiensis Ashm. and A. zelandica Ashm.) ; the other Australian species belong to Cothonaspis, Alhtria and Trybliographa. Most of the species parasitize aphids and scale-insects. Superfamily IV. CHALCIDOIDEA. This great group contains an enormous number of species throughout the world, but only a fraction of them so far have been described. Chiefly owing to the work of Girault in Queensland, nearly 2,400 species are already known in Australia; in New Zealand, on the other hand, scarcely any native species have so far been described, though there are about 90 undescribed species in various collections. The group as a whole is characterized by the small size of most of the species, the majority measucing from 0.2 mm, to 5 mm. in length, though a few Chalcididae, Eucharitidae and Perilampidae are fairly large insects, measuring up to 15 mm. The pronotum does not extend back to the tegulae. Except in the peculiar family Mymaridae, the antennae (fig. T22) are elbowed, and have a long scape and usually one or more ring-segments (r) ; these latter are'tiny, annular segments which can be found, by careful examination, between the pedicel and the funicle; the funicle itself ( / ) consists of a variable number of narrow cylindrical segments; this in turn may be succeeded by a terminal club (c), or the funicle may extend to the apex as an elongated flagellum. The part of the antenna from third segment to apex inclusive is called the clavola. The total number of segments varies from 4 to 22, but is rarely more than 13. FIG T22. Diagram of Chalcidoid antenna and forewing. A, antenna; c, club ; f, funicle; p, pedicel; r, ring-segments; s, scape; B, forewing; Trig, marginal vein; pm, postmarginal vein; sm, submarginal vein; st, stigmatic vein. The wing-venation has undergone great reduction in all members of the group. Fig. T22B shows diagrammatically a typical Chalcidoid forewing. The stout vein arising from the base and running below the costal margin is termed the CHALCIDOIDEA 272 submarginal vein (sm) ; it appears to be actually R-\-M. Further distad, this vein bends and fuses with the costa as far as the pterostigmatic region; this portion is called the marginal vein (mg). At the end of the marginal vein there is a fork, the upper branch of which is apparently simply a continuation of the marginal vein, and is called the postmarginal vein (pm) ; while the lower branch passes obliquely downwards in the wing-membrane, and is called the stigmatic vein (st). It is seldom that any other veins than these are to be seen; if such are present, they are much slenderer, and are not used in classification. All stages of reduction of the above scheme are found, some forms having no^ venation at all. The hindwing has either no veins at all, or only a single main vein. Both wings are usually covered with minute hairs, (discal cilia), whose arrangement is of considerable importance in classification; in addition, they may carry fringes of longer hairs (marginal cilia). .The great majority of species are parasitic forms, some even being secondary parasites on other parasitic Hymenoptera. A considerable number live in galls, either parasitizing the gall-making insects or their larvae, or living as inquilines in the gall. A few have evolved the gall-making habit themselves; they belong chiefly to the Perilampidae, Callimomidae, Erytomidae and Eulophidae. Some minute species parasitize the eggs of other insects. The group is on the whole highly beneficial to mankind; but it must always be remembered that the value of any species depends upon the relationship of its host to man, and that, in the case of special problems, such as the eradication of Prickly Pear in Australia, where the usual order of things is inverted, chalcids may give much trouble, and may even, perhaps, in the end, be the deciding factor against the success of the biological experiment. W i t h these exceptions, it is probably true that the future of the -biological control of a large number of insect pests is bound up with the careful study and utilization of members of this group. Those forms especially which parasitize the eggs of injurious insects, such as the Homoptera, may prove of incalculable value to the human race in the future. The classification of the group is difficult, and the limits of several of the families here given are not accepted by all authors as the same. Sixteen families have been recognized so far in Australia; but of these we shall sink the Miscogasteridae as a subfamily of the Pteromalidae, and the Eupelmidae as a subfamily of the Encyrtidae. Only three families*, the Callimomidae, Eulophidae and Pteromalidae, have so far been recognized by described species in New Zealand, but a number of others occur there. Chalcidoid wasps, except the few large species, should always be mounted entire at the apex of a small triangular slip of cardboard carried on a pin. Students would be well advised not to attempt to describe chance specimens, but only to deal with those whose life-history is known, in so far as they have been bred out from a recognizable host. Girault described most of the immense number of Australian species standing to his name from single specimens obtained by indiscriminate sweeping of grass and herbage, while most of his Trichogrammatidae were picked off window-panes. His types are in the Queensland Museum, Brisbane. The following Key will serve to distinguish the families known to occur in Australia and New Zealand:— 1. Antennae not elbowed, the scape short, ring-segments absent; ovipositor usually arising only slightly before end of abdomen; very minute species having long wing-fringes, hindwing exceedingly narrow, linear, with a long basal stalk, (tarsi with 4-5 segments). Fam. 2. 3. Fam. 4. 25. MYMARIDXE Antennae distinctly elbowed, scape usually long, ring-segments nearly always present; ovipositor arising well before end of abdomen; except in some Trichogrammatidae, wing-fringes not long and hindwing not linear or basally stalked. 2 Females with elongate head, deeply grooved longitudinally above; males wingless, with short antennae having only 3-9 segments, and with middle legs slender or aborted. Fam. 17. AGAONTIDAE Not such insects. 3 , Tarsi with 3 segments (very minute species). 24. TRICHOGRAMMATIDAE Tarsi with 4-5 segments. 4 Fore tibiae armed with a strong, curved spur; tarsi almost always 5segmented. 5 Fore tibiae armed with a weak, usually straight, spur; tarsi almost always 4-segmented. 12 *See footnote to page 276. 273 HYMENOPTERA 5. 6. 7. Hind femora greatly swollen, often toothed or spiny beneath; hind tibiae strongly bent. Fam. 13. CHALCIDIDAE Hind femora not as above; hind tibiae more or less straight. 6 Thorax very strongly developed, highly arched, usually deeply punctate. 7 m Thorax not as above (if arched, then not exceptionally enlarged a/s compared with head and after-body). 8 Mandibles sickle-shaped, with 1-2 teeth on inner margin; gaster with first segment very large, enclosing all the rest. Fam. 8. 9. 10. Fam. 11. 12. 15. EUCHARITIDAE Mandibles not sickle-shaped, but with 2-3 apical teeth; gaster with first two segments enlarged. Fam. 14. PERILAMPIDAE Hind coxae five or six times as large as fore, either triangularly compressed or with a sharp edge. Fam. 16. CALLIMOMIDAE Hind coxae not as above. 9 Pronotum large. 10 Pronotum small. 11 Pronotum square or rectangular. Fam. 18. EURYTOMIDAE Pronotum lengthened, conical, narrowed in front. 19. CLEONYMIDAE Middle tibiae long, formed for jumping, with a long or strongly formed, stout spur. Fam. 21. ENCYRTIDAE Middle tibiae normal. Fam. 20. PTEROMALIDAE Hind coxae large and broad, hind femora flatly compressed, tarsi very long. Fam. 23. ELASMIDAE Hind coxae and femora normal, tarsi normal. Fam. 22. EULOPHIDAE Family 13. Chalcididae [Aus. 167, N.Z. 0 ] . A well-marked family, easily recognizable by the greatly swollen hind femora, mostly denticulate beneath, and the strongly bent hind tibiae. Four subfamilies are here recognized, of which the Leucospidinae are considered by some authors to be deserving of family r a n k ; the Chalcodectinae are annectent to the Cleonymidae, and the Podagriinae to the Callimomidae. -y ' FIG. T23. Brachymeria aurea Gir., female, Australia, fam. Chalcididae. Length of body 6.5 mm. IR. J. T. del. The Leucospidinae are large, handsome species with the forewings folded longitudinally when at rest and the ovipositor curled up dorsally over the abdomen; they superficially resemble wasps of the Section Diploptera. Exoclaenoides ductus Gir. (pi. 21, fig. 9) is a fine black and red species, about 14 mm. long. CHALCIDOIDEA 274 The Chalcidinae are stoutly built species with robust, rugose or punctate thorax and ovipositor mostly short, not projecting. The principal Australian genera are Brachymeria* and Stomatoceras. None of the species a r e under 2 mm. and most of them are over 4 mm. in length. Brachymeria aurea Gir. (fig. T23) is blackish, with thick golden hairs on thorax and distal half of abdomen, the legs reddish brown; it parasitizes caterpillars of Delias (fam. Pieridae). B. Hercules Gir. measures up to 8 mm. long. The Chalcodectinae, placed by Ashmead in the Cleonymidae, closely res e r v e the preceding subfamily, but have the pronotum shaped as in Cleonymidae. They are almost confined to Australian and South America. Twenty Australian species are known, of which the best known belong to Euchrysia, Agamerion, Agamerionella and Systolomorphella. The Podagriinae, placed by Ashmead in the Callimomidae, are distinguished by their more slender build, less robust thorax and excessively long, straight, slender and backwardly projecting ovipositor; they are parasites in the eggcapsules of Mantidae. Twenty Australian species are known, of which more thaji half belong to the widespread genus Podagrion; Podagrionella and Pachytomoides are genera peculiar to Australia. Family 14. Perilampidae [Aus. 49, N.Z. 1]. Mostly metallic, strongly sculptured species with very large, arched thorax, but hind coxae and femora normal; mandibles with 2-3 apical teeth, not falcate; antennae short, with 12-13 segments; gaster mostly sessile, often triangular, with first two segments large. T h e dominant genus in Australia is Perilampus, of which 15 species are known. Perilampoides bicolor Gir. makes small, round, isolated galls on the leaves of Eucalypts. Several species of Trichilogaster make galls on the twigs and flowerstalks of wattles {Acacia). Many of the species are parasitic m the larvae of Lepidoptera and Neuroptera. JTIG. T24. Metagea rufiventris Ashm., female, Eucharitidae. Length of body 9 mm. Australia, fam. [JB. J. T. del. Family 15. Eucharitidaef [Aus. 48, N.Z. 2 ] . Closely related to the preceding family, but distinguished by the falcate mandibles with 1-2 teeth on inner margin, the gaster with first segment enormously developed, hiding all the rest, *A11 the Australian species hitherto placed in Ghalcis Fabr. belong to Brachymeria Wwd.; see Gahan & Fagan, Smiths. Inst. Bull. No. 124, 1923, pp.24, 31. fGreek eucharis graceful, stem eucharit-, hence fam. Eucharitidae, not Eucharidae. HYMENOPTERA 2?5 and often laterally flattened; hind coxae and femora slender; thorax enormous, humped or strongly arched; scutellum often armed with spines or processes; antennae with 10-22 segments. Mostly metallic species with rugose thorax; parasitic in the nests of ants. The principal Australian genera are Eucharis, Psilogaster, Rhipipallus and Stilbula; the last-named contains some handsome species 5-6 mm. long having the scutellum armed with two long processes and the petiole long and slender. Metagea rufiventris Ashm. (fig. T 2 4 ) , 9 mm. long, with metallic green thorax and reddish brown abdomen, is a parasite in the nests of Bull-dog Ants (genus Myrmecia). Family 16. Callimomidae (Torymidae) [Aus. 86, N.Z. 2 ] . Thorax not robust, but prothorax strongly developed; hind coxae very large, either with a sharp edge or triquetral in form; mostly metallic green, blue or golden species, with antennae having 11-13 segments. There are three very distinct subfamilies. The Callimominae are gall-forming species ranging from under 1 mm. to about 3 mm. in length and having the sexes similar; Macrodontomerus and Callimome (Torymus) are the chief genera found in Australia; a single species, C. antipodum Kby., has been recorded from New Zealand. The Megastigminae are distinguished by having only a single spur on hind tibiae: they are parasitic in galls. Megastigmus and Neomegastigmus are both well represented in Australia. The Idarninae are a remarkable group in wThich the males are wingless, with the antennae short (sometimes reduced to as little as 3 segments), and differ greatly in form from the slenderer and more elongated females, which have normal antennae With 10-13 segments, and a long ovipositor. Like the next family, they live in figs. Philotrypesis and Sycoryctes are the chief Australian genera; both sexes of S. australis Frogg. have been well figured by Froggatt (Australian Insects, pi. xii, figs. 9-11). Family 17. Agaontidae* (Blastophagidae) [Aus. 9, N.Z. 0 ] . A highly specialized family of fig-dwelling insects, with striking differences between the sexes; females with very elongate head, longitudinally grooved above, the antennae with a long scape and 9-13 segments; males blind, wingless, with soft FIG. T25. Dinoura auriventris Ashm., female, Australia, fam. Cleonymidae. Length 7 mm. IE. S. Gourlay del. *Greek agomai, Agaonidae. to wonder at, stem agaont-, hence fam. Agaontidae, not CHALCIDOIDEA 276 integument, greatly reduced antennae, and middle legs either very small, weak and slender, or entirely absent; these males live inside native figs, and superficially resemble tiny Termites. Pleistodontes imperialis Saund. and P. froggatti Mayr are found in the fruit of the Moreton Bay Fig (Ficus macrophylla). The European Blastophaga psenes L. has been successfully introduced into parts of Australia* in connection with the cultivating of the Smyrna fig. Family 18. E u r y t o m i d a e [Aus. 88, N.Z. 11]. Pronotum strongly developed, square or rectangular; legs strong, hind tibiae with two spurs; antennae with 9-13 segments. Most of the species belong to the dominant genus Eurytoma*, mostly black in colour, sometimes with greyish or whitish pubescence; they measure 2-4 mm. in length and are reared from galls. E. acaciae Cam., infests the seeds of Acacia decurrens in both countries; E. picas Gir. lives in channels under the bark of Eucalypts. The genus Harmvlita ( = Isosoma) contains a number of injurious gall-forming species. The introduced North American Bruchophagus funebris How. infests clover and lucerne seed. Family 19. Cleonymidae [Aus. 44, N.Z. 0 ] . Prothorax strongly developed but narrowed in front; hind tibiae with two spurs; antennae with 9-13 segments. The most remarkable of the Australian genera are Thaumasura and Dinoura. T. terebrator Wwd. is a slender, metallic purple species 6 mm. long, with long ovipositor; T. rubrofemoralis Ashm. ?s 10 mm. long, with bronze-green thorax and blue abdomen. Dinoura has a three-flanged ovipositor like an elongate propeller; the female of D. auriventris Ashm. (fig. T25) is 7 m m long, with golden-green abdomen, that of D. cyanea Ashm. is 10 mm. long, with blue head and thorax, and basal half df abdomen yellow; the males are much smaller and more normally shaped. Other genera found in Australia are Tomocera and Platygerrhus. Family 20. Pteromalidae [Aus. 190, N.Z. 20]. Closely allied to the preceding family, from which it differs chiefly in the small prothorax; mesopleura with a distinct groove, fore tibiae with strong spur, middle tibiae with short spur. The subfamily Pteromalinae has only a single spur on the hind tibiae; the genus Pteromalus is represented in both countries. Girault has made a large number of FIG. T26. Scutellista cyanea Mot., female, Australia, fam. Pteromalidae. Length 1.3 mm. Below, antenna, lateral view. [R. J. T. del. Australian genera containing two or three species each. Scutellista cyanea Mot. (fig. T26) is a stoutly built species of a deep metallic purple colour which parasitizes Lecanium oleae in Australia and other countries; when at rest the * Eurytoma oleariae Mask. (N.Z.) is a platygasterid, see p. 284. 277 HYMENOPTERA wings are partially covered by the huge scutellum. The species of Coelocyha are reared from galls on Eucalypts. Mormoniella (Nasonia) brevicornis Ashm. parasitizes sheep-fly maggots and pupae (Calliphorinae). Attempts have been made to utilize it, both in Australia and New Zealarid, for the control of these pests, but so far without much success. Spalangia nigra Latr. is a widespread parasite of the House-fly. The Miscogasterinae, considered by some authors as a distinct family, only differ in having the hind tibiae with two spurs. More than 50 Australian species are known, the principal genera being Miscogaster, Systasis, Lamprotatus and Arthrolysis. Decatomothorax gallicola Ashm. is a stoutly built, brownish species reared from galls of the Kurrajong Tree. Family 21. Encyrtidae [Aus. 652, N.Z. 12]. Antennae with 8-12 segments (six only in a few forms) ; pronotum very short; scutellum usually large. Middle legs developed for jumping, the tibia widened distally and armed with a long, thick spur; gaster sessile. In this huge family we include the Eupelminae, considered by some authors as a distinct family, but only differing from the rest of the Encyrtidae by the presence of parapsidal furrows on the mesonotum. Most of the species are small, 1-2 mm. long. In the Encyrtinae the principal genera are Encyrtus and Aphycus; A. lounsheryi How. (fig. T27) is a valuable FIG. T27. Aphycus lounsheryi How., female, Australia, fam. Encyrtidae. Length 1.1 mm. IR. J. T. del. parasite on-hecanium oleae and has considerably reduced the ravages of this scale in citrus orchards around Sydney; it has also been introduced into California. Tachinophagus australiensis Gir. parasitizes sheep-fly maggots (Calliphorinae) in Queensland. Encyrtus flavus How. is an introduced parasite of Coccus hesperidum, E. inquisitor How. an introduced parasite of Mealy-bugs of the genus Pseudococcus; both of these are found in New Zealand. The Ectrorninae are abundant in Australia, the principal genera being Coccidoxenns. Epidenocarsis and Anagyris; Fulgoridicida is important economically, its six species parasitizing the eggs of plant-hoppers in Queensland. The Signiphorinae contain ten Australian species of the peculiar genus Signiphora. under 1 mm. long, with 6-segmented antennae. In the Eupelminae, more than 40 Australian species of Eupelmus^are. recorded, also one from New Zealand (E. messene W a l k . ) . The family is of great economic importance, as most of the species are parasites of scale-insects and aphids. An attempt is at present being made in New Zealand to introduce from America CHALCIDOIDEA 278 Habrolepis dalmanni Wwd. (originally a European species) the only known parasite of the Oak Scale (Asterolecanium variolosum Ratz.) which is causing most serious damage to British Oaks (Quercus robur) around Christchurch. Family 22. Eulophidae [Aus. 587, N.Z. 34]. Antennae mostly with few segments; forewings with mg mostly longer than sm; fore tibiae with a short, thin and usually straight spur; middle tibiae not formed for jumping; tarsi 4segmented (except in some Aphelininae). There are five subfamilies, Aphelininae, Eulophinae, Elachertinae, Entedinae and Tetrastichinae. Of these the Aphelininae have considerable affinity with the previous family, notably in their being parasites of scale-insects, in their general build, and their ability to jump, although the middle tarsi are not specialized as in true Encyrtidae. The most abundant genera are Coccophagus, Aphelinus, Physcus and Ablerus. The North American-species Aphelinus mali Hald., recently introduced into New Zealand as a natural control for Woolly Aphis on apple-trees, has increased to such an extent that this pest has been almost eliminated from the principal orchard districts; it has also been introduced from New Zealand into Australia. The Tetrastichinae are well represented in Australia, the principal genera being Melittobia, Aprostocetus, Tetrastichus and Ootetrastichus. The last-named genus contains small species parasitic in the eggs of Homoptera; O. beatus Perk, is a Queensland species parasitic in the eggs of the Sugar-cane Hopper (Perkinsiella saccharicida Kirk.) and has been introduced into the Hawaiian Islands with excellent results. Rhicnopeltella eucalypti Gahan (subfam. Elachertinae) forms FIG. T28. Rhicnopeltella eucalypti Gahan, female, Australia and N.Z. (introd.), fam. Eulophidae. Length 1.8 mm. IE. S. Gourlay del. galls on the twigs and leaves of the Tasmanian Blue-gum (Eucalyptus globulus), and is doing great damage to plantations in New Zealand. Zagrammasofnoides fasciatus Gir. of the same subfamily makes globular, green galls on the leaves of Bloodwood (Eucalyptus corymbosa). Entedon metallicus Nees ( = Pleurotropus epigonus Walk.) has been introduced into New Zealand as a parasite of the Hessian-fly. Girault has made over 100 genera to contain the numerous Australian species of this family, but most of them only contain one or two species apiece. Family 23. Elasmidae [Aus. 100, N.Z. 4 ] . A small family only differing from the previous one in the large, strongly compressed hind coxae and thick, flatly compressed hind femora; tibiae and tarsi slender, the latter very long; antennae with 9-10 segments. Nearly all the specie?* belong to the widespread genus Elasmus, in which the antennae of the male; are branched: they are small, blackish species, mpstly about 2 mm. long. Euryischia lestophoni How. is a parasite on the flies of the genus Cryptochaetum (Lestophonus) which are parasites of the Cottony-cushion Scale (Icierya purchasi Mask.). $ 279 HYMENOPTERA Family 24. Trichogrammatidae [Aus. 105, N.Z. 1]. Tarsi with only 3 segments; antennae with at most 8 segments including a single ring-segment; hindwings narrow, sometimes linear and with long fringe. The species are all small, often under 1 mm. long, usually yellowish or brownish in colour, and chiefly parasitic in the eggs of various insects, or on thrips and leaf-hoppers. The principal Australian genera are Oligosita, Ufens, Aphelinoidea, Pterygogramma FIG. T29. Austromicron female, Australia, Length 0.6 mm. zygopterorum n.g. et sp., fam. Trichogrammatidae. IB. J. T. del. and Tricho gramma. Austromicron zygopterorum* n.g. et. sp. (fig. T29) is parasitic in the eggs of damsel-flies around Sydney; it can swim, dive and fly with vigour. Trichogramma pretiosa Riley has been recorded as a parasite of Codlingmoth at Auckland, N.Z. Family 25. Mymaridae (Fairy-flies) [Aus. 159, N.Z. 3 ] . Antennae not elbowed, at most with 13 segments, and without ring-segments; wings narrow, more or less stalked basally, with long marginal cilia; venation obsolete; legs long and thin, tarsi with 4-5 segments; ovipositor arising usually from near end of abdomen; very minute species, mostly black, with yellow markings; all parasitic in the eggs of other insects. This interesting family was formerly associated with the Proctotrypoidea; but, as the ovipositor does not actually issue from the end of the abdomen, and the prothorax does not reach back to the tegulae, its natural place is within the Chalcidoidea. About half the Australian species belong to the genera Polynema and •Genus AUSTROMICRON n.g. (fig. T29) :—Allied to Prestwichia Lubb. and Oentrobiella Gir., but differing from both in having the gaster short and broadly sessile, the ovipositor shorter and much less protruded; it also differs from Prestwichia in having both sexes fully winged, the forewing with narrower •disc carrying fewer but more distinct lines of cilia, the hindwing with only one line of discal cilia, the eyes larger; from Centrobiella it also differs in having the •antennae inserted at the level of the lower third of the eyes (as in Prestwichia), the forewing much narrower, the marginal cilia much longer. Genotype :— Austromicron zygopterorum n.sp.; total length, female 0.6 mm., male 0.5 mm.; medium brown, with black eyes, gaster of male dark brown; other characters as shown in fig. T29. Habitat:—National Park, N.S.W., bred from eggs of Zygopterous Dragonfiies, Nov. 20th-30th, 1915 and March 23rd-Apr. 6th, 1916. Types:—Holotype female, allotype male and long series of paratypes in Cawthron Institute Collection, Nelson, N.Z. My thanks are due to Mr. P. H. Timberlake of Honolulu for assistance in placing this genus. PROCTOTRYPOIDEA- 280 Gonatocerus; the largest species, G. spinozai Gir., is 1.8 mm. long. Other Australian genera are Stethynium, Anagrus, Paranagrus, Anaphes and Alaptus; the last-named contains the smallest known Australian Hymenopteron, A. newtoni FIG. T30. Paranagrus optabilis Perk., female, Australia, fam. Mymaridae. Length 0.75 mm. (after Perkins). Gir., 0.25 mm. long. Paranagrus optabilis Perk. (fig. T30) parasitizes the eggs of the Sugar-cane Hopper (Perkinsiella saccharac'da Kirk.) and has been successfully introduced into the Hawaiian Islands for the control of this pest. Superfamily V. P R O C T O T R Y P O I D E A ( S E R P H O I D E A ) * . The members of this group are all parasitic species, mostly of small size; they can be at once distinguished from the Cynipoidea and Chalcidoidea by the fact that the ovipositor, which is usually more or less tubular, with fine, hairlike spiculae, issues from the extreme end of the abdomen; they also differ from the Chalcidoidea in having the sides of the pronotum extending back to the tegulae. Most of them have the venation greatly reduced, as in the previous superfamily, but some of the more primitive forms (Belytidae) may have the forewings with a closed bm and r, and sometimes a closed Ism also (cf. Bethyloidea, figs. T36, 37) ; the hindwing seldom has any clear venation, rarely a single closed cell (bm). The names given to these closed cells by systematists in the group are the basal (bm), radial (r) and submedian (Ism). The antennae may be either elbowed or straight, but seldom have any ring-segments. The great majority of the species are beneficial as the larvae live inside the eggs or larvae of other insects, particularly Orthoptera, Hemiptera, Coleoptera, Lepidopiera and Diptera. The two families Bethylidae and Dryinidae, for a long time included within this group, do not rightly belong here, and are transferred to a new superfamily. This leaves only seven recognized families, one of which, the Heloridae, is not found in the Southern Hemisphere. The other six all occur in Australia, and probably also in New Zealand, if searched for. More than 500 species are known from Australia, less than SO from New Zealand. The families may * be distinguished by the following Key, in which, owing to the presence of a num*The generic name Serphus Schrank, 1780 has priority over Proctotrupes Latr., 1796, but the latter (or its variant, Proctotrypes) has been in use for such a long time without challenge that it has a good claim to be considered a nomen conservandum. If we also take into consideration the endless confusion that would be caused in teaching by using the terms Serphidae and Serphoidea, which are undistinguishable in pronunciation from the well-established Syrphidae and Syrphoidea in the Order Diptera,, this claim becomes greatly strengthened. For these reasons, the names Proctotrypidae and Proctotrypoidea are retained in this book. / PLATE 21 HYMENOPTERA All figures natural size 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. Pterygophorus cinctus Klug (Fam. TENTHREDINIDAE), female. Philomastix macleayi Wwd. (Fam. TENTHREDINIDAE), female. Stephanus crassicauda Mori. (Fam. STEPHANIDAE) , female. Hyptiogaster macrononyx Schlett. (Fam. EVANIIDAE), female. Lissopimpla semipunctata Kby. (Fam. ICHNEUMONIDAE), female. Echthromorpha intricatoria Fabr. (Fam. ICHNEUMONIDAE), female. Paniscus productus Brulle (Fam. ICHNEUMONIDAE), female. Cremnops dissimilis R. Turn. (Fam. BRACONIDAE), female. Exoclaenoides cinctus Gir. (Fam. CHALCIDIDAE), female. Ephutomorpha ferruginata Wwd. (Fam. MUTILLIDAE), male. Ephutomorpha ferruginata Wwd. (Fam. MUTILLIDAE), female, Odynerus mirabilis Sauss. (Fam. E U M E N I D A E ) , female. Rhynchium abispoides M.W. (Fam. E U M E N I D A E ) , male. Euparagia deceptor Sm. (Fam. MASARIDAE), female. Polistes tepidus Fabr. (Fam, VESPIDAE), female. Ropalidia socialistica Sauss. (Fam. VESPIDAE), female. Myrmecia gulosa Fabr. (Fam. FORMICIDAE), worker. Myrmecia gulosa Fabr. (Fam.. FORMICIDAE), male. Myrmecia gulosa Fabr. (Fam. FORMICIDAE), female. Myrmecia nigrocincta Sm. (Fam. FORMICIDAE), worker. Leptomyrmex erythrocephalus Fabr. (Fam. FORMICIDAE), worker. Camponotus intrepidus Kby. (Fam. FORMICIDAE), soldier. Exeirus lateritius Shuck. (Fam. EXEIRIDAE), male. Tachytes nigerrimus Sm. (Fam. LARRIDAE), female, N.Z. Cerceris froggatti R. Turn. (Fam. P H I L A N T H I D A E ) , female. Bembex furcata Er. (Fam. BEMBECIDAE), male. Pison spinolae Shuck. (Fam. TRYPOXYLIDAE), female, N.Z. 4 Chlorion saevum Sm. (Fam. SPHECIDAE), female. Rhopalum carbonarium Sm. (Fam. CRABRONIDAE), female, N.Z. Gastropsis pubescens Sm. (Fam. COLLETIDAE), male. Anthopphora pulchra Sm. (Fam. ANTHOPHORIDAE), fema 1 e. Lestis aerata Sm. (Fam. XYLOCOPIDAE) , female. Plate 21 P. Tillyard del. HYMENOPTERA 306 HYMENOPTERA duced for the fertilization of Red Clover; but the commonest of these. B. terrestris L., does not possess a tongue long enough to do this. These bees have gained the objectionable habit of cutting directly into the ovaries of certain flowers to get at the nectar, and do considerable damage to broad beans. REFERENCES. ANDRE, E., 1903. "Mutillidae" in Genera Insectorum, fasc. 11. ASHMEAD, W. H., 1893. "Monograph of the North American Proctotrypidae," Bull. U.S. Nat. Mus., Washington, No. 45; 1904, "Classification of the Chalcid Plies", Mem. Carnegie Museum, I, iv, pp.226-551. BERTHOUMIEU, V., 1904. "Ichneumonidae, subfam. Ichheumoninae", in Genera Insectorum, fasc. 18c. BISCHOFF, H., 1913. "Chrysididae" in Genera Insectorum, fasc. 151. BRADLEY, J. C, 1908. "Evaniidae" in Trans. Amer. Ent. Soc, xxxiv, pp.103-194. * BRUES, C. T., 1908. "Scelionidae", in Genera Insectorum, fasc! 80 ; 1922, "Some Parasitic Hymenoptera from N.Z.", Psyche, xxix, Nos. 5-6. CAMERON, T., 1909. "Hymenoptera from Auckland Is.", in The Subantarctic Islands of N.Z., vol. I, pp.75-77. COCKERELL, T. D. A., 1905-1923. Numerous papers on Australian Bees in Ann. Mag. Nat. Hist., 1905-1923; Trans. Amer. Ent. Soc, 1905, xxxi, and 1910, xxxvi; Proc. Acad. Nat. Sci. Philad., 1913, 1916; Amer. Mus. Nat. Hist., 1907, xxiii; Jo'urn. N.Y. Ent. Soc, 1910, xviii; Insecutor Inscitiae Menstr., 1914, i i ; Entomologist, London, 1910, 1912-1914; Proc Linn. Soc N.S.W., 1911, 1913; Mem, Qu. Museum, 1916, v ; 1918, vi; 1922, vii. DALLA TORRE, K. W., 1904. "Vespidae" in Genera Insectorum,, fasc. 19. —— , and KIEFFER, J. J., 1902. "Cynipidae" in Genera Insectorum, fasc. 9-10. DODD, A. P., 1913-1924. Numerous papers on Australian Proctotrypoidea in Arch. Naturg. Berlin, 1913, lxxix, Abt. A.H. 6, pp.164-182 ; 1914 (1913), AM. A.H. 8, pp.77-91; Canadian Entomologist, 1913, xlv, pp.346-7 ; 1914, xlvi, p.60; Mem. Qu. Museum, 1913, ii, pp.335-9 ; Trans. Roy. Soc. S. Australia, ("Australian Prototrypoidea, Nos. 1-4") 1913, xxxvii, pp.132-181; 1914, xxxviii, pp.58-131; 1915, xxxix, pp.384-454 ; 1916, xl, pp.9-32 ; Entom. News, Philad., 1914, xxv, pp.251-257, 350, 416, 455; Proc Roy. Soc. Qu., 1914, xxvi, pp.91-140 ; Proc Linn. Soc N.S.W., xlv, pp.443-6 ; Trans. Ent. Soc London, 1920, pp.321-382 ; 1917, "Australian Chalcidoidea" in Trans. Roy. Soc S. Australia. xli, pp.344-368. ELLIOTT, E. A., 1919-1922. "Stephanidae" in Entomologist, 1919, pp.28-33, 129-131, Monograph, Proc Zool. Soc London, 1922, p.705. EMERY, C , 1910-1922. "Formicidae" in Genera Insectorum, fasc. 102, 1910, (Dorylinae) ; in fasc. 118, 1911, (Ponerinae) ; fasc. 137, 1912, (Dolichoderinae) ; fasc. 174 a-c, 1922 (Myrmicinae). FOREL, A., 1905. "Revision of N.Z. Formicidae", Trans. N.Z. Inst., xxxvii, pp.353-5. GIRAULT, A. A., 1912-1916. "Australian Hymenoptera Chalcidoidea", Mem. Qu. Museum, Brisbane, 1912, i, pt.i (Trichogrammatidae) pp.66-116, pt.ii (Myraaridae), pp.117-175, pt. iii (Elasmidae), pp.176-189 ; 1913, ii, pt.i suppt. pp.101-6, pt.ii suppt., pp.107-129, pt.iii suppt., pp.130-9, pt.iv (Eulophidae), pp.140-296, pt.v (Perilampidae), pp.297-302, pt.vi (Pteromalidae), pp.303334 ; 1915, iii, pt.i, 2nd suppt., pp.142-153, pt.ii, 2nd suppt. pp.154-169, pt.iii, 2nd suppt., pp.170-9, pt.iv, suppt., pp.180-299, pt.v, suppt., pp.300-312, pt.vi, suppt., pp.313-346; 1915, iv, pt.vii (Encyrtidae), pp.1-184, pt.viii (Miscogasteridae), pp.185-202, pt.ix (Cleonymidae), pp.203-224, pt.x (Eucharitidae), pp.225-237, pt.xi (Eurytomidae), pp.238-274, pt.xii (Callimomidae). pp.275-309, pt.xiii (Agaontidae), pp.310-3, pt.xiv (Chalcididae), pp.314-365; 1916, v, General Suppt., pp.205-230; 1911-1921, Numerous papers, chiefly on Australian Chalcidoidea, in Entomologist, 1911, 1913, 1914, 1916; Proc Ent. Soc. Washington, 1911, 1914; Psyche, 1912; Arch. Naturg. 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