A Beginner’s Guide to Butterfly Identification in Northern Virginia and Washington, D.C. TABLE OF CONTENTS HELPFUL HINTS………………………………………………2 SWALLOWTAILS (Papilionidae)……………………………...3 WHITES and SULPHURS (Pieridae)…………………………..4 HAIRSTREAKS (Lycaenidae)………………………………….4 BLUES (Lycaenidae)……………………………………………5 HELICONIANS and FRITTILARIES (Nymphalidae)…………5 SNOUTS (Lycaenidae)………………………………………….6 COPPERS (Lycaenidae)………………………………………...6 TRUE BRUSH-FOOTS (Nymphalidae)……………………...6-7 ADMIRALS and RELATIVES (Nymphalidae)………………..8 MILKWEED BUTTERFLIES (Nymphalidae)…………………8 EMPERORS (Nymphalidae)……………………………………9 SATYRS (Nymphalidae)………………………………………..9 Helpful Hints: Butterfly Anatomy and Size: Upperside Forewing Underside Hindwing Small (<2 in wingspan) Medium (2-3 in wingspan) Large (3-6 in wingspan) 0 1 2 3 4 5 6 |______________|______________|______________|______________|______________|______________| | | | | | | | | | | | | | Inches Useful Online Sources: http://www.butterfliesandmoths.org/ http://www.virginia.edu/blandy/ClarkeCountyLandUseSurvey/ccmapping.htm http://www.carolinanature.com/butterflies/ Book sources used to compile this guide: A Field Guide to Eastern Butterflies, Opler, Paul A. and Vichai Malikul, Houghton Mifflin Company: Boston, 1992. Butterflies through Binoculars: The East, Glassberg, Jeffrey, Oxford University Press, Inc.: New York, 1999. 2 SWALLOWTAILS Zebra Swallowtail Color(s): White with black stripes Key Features: Very long tails; zebra striped Adult Habitat: Moist woods along rivers, woods swamps, pine flatwoods Eastern Tiger Swallowtail Color(s): Yellow, black stripes; some females are black Key Features: Tiger-striped Adult Habitat: Deciduous broadleaf forests, edges, and river valleys WARNING! Some females look similar to Pipevine, but without iridescent blue on underside of hindwing. Black Swallowtail Color(s): Black, yellow Key Features: Very dark black; 2 rows of orange spots Adult Habitat: Open areas—fields, gardens, waste areas, marshes, meadows WARNING! Spicebush, Pipevine, and dark female E. Tiger Swallowtails look similar in flight. Note two rows of orange spots on hindwing and habitat. Spicebush Swallowtail Color(s): Black, blue Key Features: Spoon-shaped tails Adult Habitat: Deciduous forests, second growth woods, edges, wooded swamps, pine barrens WARNING! Black, Pipevine, and dark female E. Tiger Swallowtails look similar in flight. Note two rows of orange spots on hindwing and habitat. Pipevine Swallowtail Color(s): Black Key Features: One row large orange spots on iridescent blue on underside. Upperside black with iridescent dark green, very little white Adult Habitat: Glades in woods; wooded clearings WARNING! Similar in flight to Black, Spicebush, and dark female E. Tiger Swallowtails. Note one row of orange spots and blue on underside of hindwing. 3 WHITES and SULPHURS Cabbage White Color(s): White Key Features: Extremely common and wide-spread Adult Habitat: Open, weedy areas in urban and rural settings: gardens, powerlines, marshes, road edges. Clouded (Common) Sulfur Color(s): Yellow Key Features: Males have dark margins on all wings Adult Habitat: Open; fields, lawns, road edges, clover WARNING! Similar to orange sulphur. Common sulphur does not have orange on forewing. © www.discoverlife.org © N American Butterfly Association Orange (Alfalfa) Sulfur Color(s): Yellow, some orange Key Features: Orange patches in center of forewing; Dark edges on males Adult Habitat: Open; fields, lawns, road edges WARNING! Similar to common sulphur. Orange sulphur does not have orange on forewing. HAIRSTREAKS Red-Banded Hairstreak Color(s): Gray-brown; red/orange stripe Key Features: Hair-like tails on wings; red stripe Adult Habitat: Fields, coastal hammocks, edges DC AREA ONLY! Gray Hairstreak Color(s): Gray-blue; large red spot near tail Key Features: Hair-like tails; red spot on hindwing Adult Habitat: Open sites; often disturbed, weedy areas 4 BLUES Eastern Tailed Blue Color(s): Light blue; orange spots on underside Key Features: Small tails and tiny orange spots on hindwing; dark outline around upperwings Adult Habitat: Open, sunny, weedy fields and meadows WARNING! Female upperwings are grey/brown with little blue. Common Blue is similar, but without orange spots and tiny tails. Note habitat difference. © www.birdsofoklahoma.net Common Blue (Summer Azure) Color(s): Light blue; females have black outline Key Features: Very small, moth-like, often very pale blue Adult Habitat: Deciduous woods and wooded edges WARNING! Eastern Tailed Blue is similar, but with orange spots and tiny tails. Note habitat difference. HELICONIANS and FRITILLARIES Great Spangled Fritillary Color(s): Orange Key Features: Bright orange with silver spots; large Adult Habitat: Moist; open fields, meadows, roadsides Meadow Fritillary Color(s): Orange Key Features: Dull orange with brown/black dashes; medium-sized Adult Habitat: Low, moist grassy fields DC AREA ONLY! Variegated Fritillary Color(s): Orange Key Features: Upper side orange with thick dark veins and markings; black spots near margin. Underside of hindwing has mottled pattern, no silver spots. Adult Habitat: Open sunny areas such as fields, pastures, road edges, and landfills. 5 SNOUTS American Snout Color(s): Brown and orange Key Features: Distinct protrusion from head (snout); angular wings with dark margins; orange near body Adult Habitat: Forested rivers & marshes, fields, edges © Samford University COPPERS American Copper Color(s): Orange Key Features: Forewings orange with black spots; flies close to the ground; bright orange flash Adult Habitat: Meadows, old fields, roadsides, landfills TRUE BRUSH-FOOTS: Anglewings Question Mark Color(s): Orange Key Features: Upper hindwings dark; black speckles on forewings; frilly, angular wing margins Adult Habitat: Woodlands and nearby open areas WARNING! Similar to Eastern Comma, but upper wing edges lighter and appear less tattered. Eastern Comma Color(s): Orange Key Features: Wing edges deeply cut; looks tattered; Upper wings have dark margin Adult Habitat: Damp forests, marshes, swamps, rivers WARNING! Similar to Question Mark, but upper wing edges darker and appear more tattered. 6 MORE TRUE BRUSH-FOOTS Pearl Crescent Color(s): Orange Key Features: Orange with dark markings; brown smudge on hindwing; low flight Adult Habitat: Meadows and old fields Mourning Cloak Color(s): Black Key Features: Pale yellow/white margin on outside of upper wings © www.monctonnaturalistsclub.org Adult Habitat: Streams, wooded clearings, urban parks, damp woods DC AREA ONLY! American Lady Color(s): Orange Key Features: Underside has cobweb-like pattern and pink patch on forewing. Two large eyespots on hind wings. Adult Habitat: Open spaces like fields and roadsides © www.wisconsinbutterflies.org DC AREA ONLY! Painted Lady Color(s): Orange-pink Key Features: Underside has cobweb-like pattern and pink patch on forewing. Four small eyespots on hind wings. Adult Habitat: Open spaces of all kinds 7 ADMIRALS and RELATIVES Red Admiral Color(s): Black, red, orange Key Features: Reddish-orange bands on both forewings and hindwings; rapid flight Adult Habitat: Open areas with flowers Red Spotted Purple Color(s): Greenish blue Key Features: Hindwings with black stripe lining margin; Red spots at tip of upper forewing & edges of outer wings Adult Habitat: Broadleaf deciduous forests WARNING! Similar to Pipevine Swallowtail (p 3), but has red spots on forewings and no tails on hindwings. Common Buckeye Color(s): Brown with brightly colored orange spots Key Features: Eyespots on upper wings are large and brightly colored Adult Habitat: Exposed areas: meadows, road edges Viceroy Color(s): Orange, black Key Features: Bright orange, black veins, and black band cutting across hindwings. Adult Habitat: Open areas near water or marshes with willow © www.birdsofoklahoma.net Black band unique to viceroy WARNING! Mimic of Monarch. Viceroy is smaller, has black band across hindwings, and glides with flat wings. Monarch glides in a “V” shape. MILKWEED BUTTERFLIES Monarch Color(s): Orange, black Key Features: Bright orange, black veins Adult Habitat: Meadows, weedy fields, moist areas WARNING! Similar to Viceroy, but larger and does not have a black band crossing hindwings. Glides in a “V” shape, while Viceroy glides with flat wings. 8 EMPERORS Hackberry Emperor Color(s): Dark brown Key Features: Upperside of forewing dark brown with white spots; very friendly, will land on you Adult Habitat: Forested streams and clearings; edges WARNING! Similar to Tawny Emperor, but usually less colorful. Tawny Emperor Color(s): Brown with colorful hindwings Key Features: Hindwings darker than forewings Adult Habitat: Heavily wooded areas near rivers, dry woods, cities WARNING! Similar to Hackberry Emperor, but usually more colorful. SATYRS Common Wood Nymph Color(s): Brown Key Features: Dark spots on underside and upperside wing margins Adult Habitat: Prairies, fields, pine woods, bogs, meadows Northern Pearly Eye Color(s): Pale grey Key Features: Pale color; row of dark spots on underside Adult Habitat: Damp deciduous woods near streams or marshes DC AREA ONLY! Little Wood-Satyr Color(s): Brown Key Features: Two eye spots on forewing and hindwing Adult Habitat: Edge habitat between fields and forests 9