Forensic Investigations Entomology - study of insects ASISTM, 2006 Insects Insects are a class of Arthropods that have three segments to their body, one pair of antennae, three pairs of legs, compound eyes and breathe air via small holes or spiracles along the side of their body. Insects Most arthropods are insects BUT there are also bugs that are NOT insects such as spiders (Arachnida), crayfish & woodlice (Crustacea) and millipedes & centipedes (Diplopoda & Chilopoda - sometimes collectively known as Myriapoda). It is easy to be confused! Insects Classification of the arthropods can also be slightly different in various information sources. To make it even more confusing, as more research is done, scientists may revise or even change what group various organisms belong in. Insects As you watch the slide presentation, think about the following: • Are there ‘good or bad’ insects? • What role do insects play in science? • Are insects important in forensic science? Caterpillar DUIT image database Grasshopper Schistocerca americana - species name Russ Ottens, University of Georgia, www.insectimages.org Bluebodied blow fly Calliphora dubia Courtesy Ian Dadour, UWA Flesh fly Sarcophagidae - Family Courtesy Ian Dadour, UWA House fly Musca domestica Courtesy Ian Dadour, UWA Hide beetle Trogidae Courtesy Ian Dadour, UWA Hister beetle Hister spp Courtesy Ian Dadour, UWA Rove beetle Nudobius luridipennis Gerald J. Lenhard, www.insectimages.org Smooth & Hairy maggots Courtesy Ian Dadour, UWA Carrion beetle Oiceoptoma noveboracensis David Cappaert, www.insectimages.org Honey bee Apis mellifera Scott Bauer, USDA Agricultural Research Service, www.insectimages.org Oriental cockroach Blatta orientalis Clemson University USDA Cooperative Extension Slide Series, www.insectimages.org Clothes moth Tineola bisselliella Clemson University USDA Cooperative Extension Slide Series, www.insectimages.org Striped earwig Labidura riparia Joseph Berger, www.insectimages.org Mosquito Culicidae Jim Occi, BugPics, www.insectimages.org Green blow fly Phaenicia sericata Joseph Berger, www.insectimages.org Field cricket Gryllus pennsylvanicus Joseph Berger, www.insectimages.org Katydid Tettigoniidae Jim Occi, BugPics, www.insectimages.org Black-winged damselfly Calopteryx maculata David Cappaert, www.insectimages.org Stick insect Anisomorpha spp. Herbert A. "Joe" Pase III, Texas Forest Service, www.insectimages.org Lacewing Chrysopa oculata Clemson University USDA Cooperative Extension Slide Series, www.insectimages.org Horned palassus Odontotaenius disjunctus Herbert A. "Joe" Pase III, Texas Forest Service, www.insectimages.org Rhinocerus beetle Sinodendron cylindricum Gyorgy Csoka, Hungary Forest Research Institute, www.insectimages.org Monarch butterfly - caterpillar Danaus plexippus David Cappaert, www.insectimages.org Monarch butterfly - cocoon Danaus plexippus Herbert A. "Joe" Pase III, Texas Forest Service, www.insectimages.org Monarch butterfly Danaus plexippus Charles T. Bryson, USDA Agricultural Research Service, www.insectimages.org Firefly Photinus spp David Cappaert, www.insectimages.org Transverse lady beetle eggs Coccinella transversoguttata Bradley Higbee, Paramount Farming, www.insectimages.org Silverfish Lepisma saccharina Clemson University USDA Cooperative Extension Slide Series, www.insectimages.org Ladybird beetle Coccinella septempunctata Whitney Cranshaw, Colorado State University, www.insectimages.org Termite Coptotermes formosanus Scott Bauer, USDA Agricultural Research Service, www.insectimages.org Green stink bug Acrosternum hilare Susan Ellis, www.insectimages.org Horse fly Hematabanus carolinensis Sturgis McKeever, Georgia Southern University, Biology Slide Collection, www.insectimages.org Bumblebee Bombus impatiens David Cappaert, www.insectimages.org Chinese mantid Tenodera aridifolia sinensis Susan Ellis, www.insectimages.org Red ant Formica pallidefulva Susan Ellis, www.insectimages.org Giant ichneumon wasp Rhyssa persuasoria Boris Hrasovec, University of Zagreb, www.insectimages.org Other bugs that are NOT insects Diplopoda & Chilopoda (millipedes & centipedes) Millipede DUIT image database Centipede Tom Coleman, University of Kentucky, www.insectimages.org Centipede DUIT image database Other bugs that are NOT insects Arachnida - Araneae (spiders) Jumping spider Platycryptus undatus David Cappaert, www.insectimages.org Black widow spider (closely related to the red-back spider) Latrodectus mactans Ronald F. Billings, Texas Forest Service, www.insectimages.org Tarantula Ronald F. Billings, Texas Forest Service, www.insectimages.org Other bugs that are NOT insects Arachnida - Scorpiones (scorpions) Southern devil scorpion James O. Howell, The University of Georgia, www.insectimages.org Other bugs that are NOT insects Archanida - Acari (mites & ticks) Yellow mite Lorryia formosa Eric Erbe, USDA Agricultural Research Service, www.insectimages.org Tick Ixodes scapularis Scott Bauer, USDA Agricultural Research Service, www.insectimages.org Other bugs that are NOT insects Crustacea - Oniscidea (crustaceans that live on land) Woodlice Oniscidea DUIT image database Pill bug Armadillidium vulgare Joseph Berger, www.insectimages.org References Slides sourced www.insectimages.org are copyright free and provided by The Source for Entomology Photos A joint project of the University of Georgia and the USDA Forest Service. Project Coordinators: Keith Douce, David Moorhead & Charles Bargeron. Some slides are courtesy of Associate Professor Ian Dadour, The Centre for Forensic Science, The University of Western Australia The insect banner has been created from a series of drawings by Paul Ricketts, DUIT Multimedia, The University of Western Australia.