CHECKLIST of PENNSYLVANIA BUTTERFLIES based on the Butterflies and Moths of North America (BAMONA) project http://www.butterfliesandmoths.org/ 153 species identified in PA Common Name Scientific Name SPREAD-WING SKIPPERS Family: Hesperiidae Subfamily: Pyrginae Silver-spotted Skipper Epargyreus clarus Long-tailed Skipper Urbanus proteus Golden-banded Skipper Autochton cellus Hoary Edge Achalarus lyciades Northern Cloudywing Thorybes pylades Southern Cloudywing Thorybes bathyllus Confused Cloudywing Thorybes confusis Hayhurst's Scallopwing Staphylus hayhurstii Dreamy Duskywing Erynnis icelus Sleepy Duskywing Erynnis brizo Juvenal's Duskywing Erynnis juvenalis Horace's Duskywing Erynnis horatius Mottled Duskywing Erynnis martialis Zarucco Duskywing Erynnis zarucco Funereal Duskywing Erynnis funeralis Wild Indigo Duskywing Erynnis baptisiae Columbine Duskywing Erynnis lucilius Persius Duskywing Erynnis persius Grizzled Skipper Pyrgus centaureae Common Checkered-Skipper Pyrgus communis Common Sootywing Pholisora catullus GRASS SKIPPERS Family: Hesperiidae Subfamily: Hesperiinae Arctic Skipper Carterocephalus palaemon Swarthy Skipper Nastra lherminier Clouded Skipper Lerema accius Least Skipper Ancyloxypha numitor European Skipper Thymelicus lineola Fiery Skipper Hylephila phyleus Leonard's Skipper Hesperia leonardus Cobweb Skipper Hesperia metea Dotted Skipper Hesperia attalus Indian Skipper Hesperia sassacus Sachem Atalopedes campestris Peck's Skipper Polites peckius Tawny-edged Skipper Polites themistocles Crossline Skipper Polites origenes Long Dash Polites mystic Whirlabout Polites vibex Northern Broken-Dash Wallengrenia egeremet Little Glassywing Pompeius verna Arogos Skipper Atrytone arogos Delaware Skipper Anatrytone logan Hobomok Skipper Poanes hobomok Zabulon Skipper Poanes zabulon Mulberry Wing Poanes massasoit Broad-winged Skipper Poanes viator Black Dash Euphyes conspicua Dion Skipper Euphyes dion Two-spotted Skipper Euphyes bimacula Dun Skipper Euphyes vestris Dusted Skipper Atrytonopsis hianna Pepper and Salt Skipper Amblyscirtes hegon Common Roadside-Skipper Amblyscirtes vialis Twin-spot Skipper Oligoria maculata Brazilian Skipper Calpodes ethlius Salt Marsh Skipper Panoquina panoquin Ocola Skipper Panoquina ocola SWALLOWTAILS Family: Papilionidae Subfamily: Papilioninae Pipevine Swallowtail Battus philenor Zebra Swallowtail Eurytides marcellus Black Swallowtail Papilio polyxenes Canadian Tiger Swallowtail Papilio canadensis Appalachian Tiger Swallowtail Papilio appalachiensis Eastern Tiger Swallowtail Papilio glaucus Spicebush Swallowtail Papilio troilus Palamedes Swallowtail Papilio palamedes Giant Swallowtail Papilio cresphontes WHITES Family: Pieridae Subfamily: Pierinae Falcate Orangetip Anthocharis midea Olympia Marble Euchloe olympia West Virginia White Pieris virginiensis Cabbage White Pieris rapae Checkered White Pontia protodice SULPHURS Family: Pieridae Subfamily: Coliadinae Clouded Sulphur Colias philodice Orange Sulphur Colias eurytheme Pink-edged Sulphur Colias interior Southern Dogface Zerene cesonia Cloudless Sulphur Phoebis sennae Orange-barred Sulphur Phoebis philea Little Yellow Pyrisitia lisa Sleepy Orange Abaeis nicippe Dainty Sulphur Nathalis iole HARVESTERS Family: Lycaenidae Subfamily: Miletinae Harvester Feniseca tarquinius COPPERS Family: Lycaenidae Subfamily: Lycaeninae American Copper Lycaena phlaeas Bronze Copper Lycaena hyllus Bog Copper Lycaena epixanthe HAIRSTREAKS Family: Lycaenidae Subfamily: Theclinae Great Purple Hairstreak Atlides halesus Juniper Hairstreak Callophrys gryneus Brown Elfin Callophrys augustinus Hoary Elfin Callophrys polios Frosted Elfin Callophrys irus Henry's Elfin Callophrys henrici Eastern Pine Elfin Callophrys niphon Oak Hairstreak Satyrium favonius Coral Hairstreak Satyrium titus Acadian Hairstreak Satyrium acadica Hickory Hairstreak Satyrium caryaevorus Edwards' Hairstreak Satyrium edwardsii Banded Hairstreak Satryium calanus Striped Hairstreak Satyrium liparops Red-banded Hairstreak Calycopis cecrops Gray Hairstreak Strymon melinus White M Hairstreak Parrhasius m-album Early Hairstreak Erora laeta BLUES Family: Lycaenidae Subfamily: Polyommatinae Marine Blue Leptotes marina Eastern Tailed-Blue Cupido comyntas Spring Azure Celastrina 'ladon' Northern Azure Celastrina lucia Summer Azure Celastrina neglecta Dusky Azure Celastrina nigra Appalachian Azure Celastrina neglecta-major Cherry Gall Azure Celastrina serotina Silvery Blue Glaucopsyche lygdamus Melissa Blue Plebejus melissa TRUE METALMARKS Family: Riodinidae Subfamily: Riodininae Northern Metalmark Calephelis borealis SNOUTS Family: Nymphalidae Subfamily: Libytheinae American Snout Libytheana carinenta MILKWEED BUTTERFLIES Family: Nymphalidae Subfamily: Danainae Monarch Danaus plexippus Queen Danaus gilippus LONGWINGS Family: Nymphalidae Subfamily: Heliconiinae Gulf Fritillary Agraulis vanillae Variegated Fritillary Euptoieta claudia Great Spangled Fritillary Speyeria cybele Aphrodite Fritillary Speyeria aphrodite Regal Fritillary Speyeria idalia Atlantis Fritillary Speyeria atlantis Silver-bordered Fritillary Boloria selene Meadow Fritillary Boloria bellona ADMIRALS AND RELATIVES Family: Nymphalidae Subfamily: Limenitidinae Red-spotted Purple Limenitis arthemis Viceroy Limenitis archippus EMPERORS Family: Nymphalidae Subfamily: Apaturinae Hackberry Emperor Asterocampa celtis Tawny Emperor Asterocampa clyton TRUE BRUSH-FOOTS Family: Nymphalidae Subfamily: Nymphalinae Silvery Checkerspot Chlosyne nycteis Gorgone Checkerspot Chlosyne gorgone Harris' Checkerspot Chlosyne harrisii Pearl Crescent Phyciodes tharos Northern Crescent Phyciodes cocyta Tawny Crescent Phyciodes batesii Baltimore Checkerspot Euphydryas phaeton Common Buckeye Junonia coenia Question Mark Polygonia interrogationis Eastern Comma Polygonia comma Green Comma Polygonia faunus Gray Comma Polygonia progne Milbert's Tortoiseshell Aglais milberti Compton Tortoiseshell Nymphalis vaualbum Mourning Cloak Nymphalis antiopa California Tortoiseshell Nymphalis californica Red Admiral Vanessa atalanta Painted Lady Vanessa cardui American Lady Vanessa virginiensis SATYRS Family: Nymphalidae Subfamily: Satyrinae Northern Pearly-eye Enodia anthedon Eyed Brown Satyrodes eurydice Appalachian Brown Satyrodes appalachia Common Ringlet Coenonympha tullia Little Wood Satyr Megisto cymela Carolina Satyr Hermeuptychia sosybius Common Wood Nymph Cercyonis pegala.