List of butterflies of Maine

This is a tentative list of butterflies found in Maine, a state in the United States.

Admirals and relatives (Limenitidinae)

 * 'Astyanax' red-spotted purple (Limenitis arthemis astyanax)
 * Red-spotted purple (Limenitis arthemis)
 * Viceroy (Limenitis archippus)
 * White admiral (Limenitis arthemis arthemis) *

Longwings (Heliconiinae)

 * Aphrodite fritillary (Speyeria aphrodite)
 * Arctic fritillary (Boloria chariclea)
 * Atlantis fritillary (Speyeria atlantis)
 * Bog fritillary (Boloria eunomia)
 * Great spangled fritillary (Speyeria cybele) *
 * Meadow fritillary (Boloria bellona)
 * Regal fritillary (Speyeria idalia)
 * Silver-bordered fritillary (Boloria selene)
 * Variegated fritillary (Euptoieta claudia)

Milkweed butterflies (Danainae)

 * Monarch (Danaus plexippus) *

Snouts (Libytheinae)

 * American snout (Libytheana carinenta)

True brushfoots (Nymphalinae)

 * American lady (Vanessa virginiensis)
 * Baltimore (Euphydryas phaeton)
 * Common buckeye (Junonia coenia)
 * Compton tortoiseshell (Nymphalis vaualbum)
 * Eastern comma (Polygonia comma)
 * Gray comma (Polygonia progne)
 * Green comma (Polygonia faunus)
 * Harris' checkerspot (Chlosyne harrisii)
 * Hoary comma (Polygonia gracilis)
 * Milbert's tortoiseshell (Aglais milberti)
 * Mourning cloak (Nymphalis antiopa) *
 * Northern crescent (Phyciodes cocyta)
 * Painted lady (Vanessa cardui)
 * Pearl crescent (Phyciodes tharos)
 * Question mark (Polygonia interrogationis)
 * Red admiral (Vanessa atalanta) *
 * Satyr comma (Polygonia satyrus)
 * Silvery checkerspot (Chlosyne nycteis)
 * Tawny crescent (Phyciodes batesii)

Swallowtails (Papilioninae)

 * Black swallowtail (Papilio polyxenes) *
 * Canadian tiger swallowtail (Papilio canadensis)
 * Eastern tiger swallowtail (Papilio glaucus) *
 * Giant swallowtail (Papilio cresphontes)
 * Pipevine swallowtail (Battus philenor)
 * Spicebush swallowtail (Papilio troilus)

Spread-wing skippers (Pyrginae)

 * Common sootywing (Pholisora catullus)
 * Dreamy duskywing (Erynnis icelus)
 * Juvenal's duskywing (Erynnis juvenalis)
 * Northern cloudywing (Thorybes pylades)
 * Persius duskywing (Erynnis persius)
 * Silver-spotted skipper (Epargyreus clarus)
 * Sleepy duskywing (Erynnis brizo)
 * Southern cloudywing (Thorybes bathyllus)

Gossamer-winged butterflies (Lycaenidae)

 * Spring azure (Celastrina ladon) *

Harvesters (Miletinae)

 * Harvester (Feniseca tarquinius)

* most common species