Connecticut Butterflies: Pictures and Butterfly Identification Help

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picture of a Cabbage White Butterfly, part of the Connecticut butterflies collection

Welcome to Connecticut butterflies.

As a small Atlantic Coast state, Connecticut ranks at the lower end of the butterfly diversity for states. According to the Yale Peabody Museum,

At one time or another over 120 butterfly species have been reported from Connecticut. Of these, 114 may still occur in the state. The Connecticut Butterfly Atlas Project documented the occurrence of 110 species from 1995 through 1999.

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Anyone looking for butterfly identification help can press the green butterfly button for more information.

Butterflies: Whites and Yellows


picture of a Clouded Sulphur butterfly
Pieridae, the family of butterflies with white wings and yellow wings, makes a good appearnce in the state. The list has some more Southern species such as the Southern Dogface, and they are considered uncommon species. Orange and Clouded Sulphurs are probably the most common species.
Whites
Falcate Orangetip
Mustard White
West Virginia White
Cabbage White
Checkered White
Yellows
Clouded Sulphur
Orange Sulphur
Southern Dogface
Cloudless Sulphur
Orange-barred Sulphur
Little Yellow
Sleepy Orange

Blues, Hairtreaks and Coppers


picture of a Coral Hairstreak, credit Benny Mazur flickr
Eastern Tailed-blues and Azures are the most common of the blue butterfly species. The Bog Copper is considered endangered in the state.

Corals, Edwards and Banded Hairstreaks are the most common species in the state. Otherwise the list consists of species that are more local in their appearances. The picture shows a Coral Hairstreak.

Blues
Eastern Tailed-Blue
Spring Azure
Summer Azure
Appalachian Azure
Cherry Gall Azure
Silvery Blue
Hairstreaks
Hessel’s Hairstreak
Juniper Hairstreak
Brown Elfin
Hoary Elfin
Frosted Elfin
Henry’s Elfin
Eastern Pine Elfin
Oak Hairstreak
Coral Hairstreak
Acadian Hairstreak
Hickory Hairstreak
Edwards’ Hairstreak
Banded Hairstreak
Striped Hairstreak
Red-banded Hairstreak
Gray Hairstreak
White-M Hairstreak
Coppers
Harvester
American Copper
Bronze Copper
Bog Copper

Brush Footed Butterflies


picture of a Viceroy buterfly
Most Connecticut residents and visitors will be familiar with the Brush Footed butterflies they see in the state. Many are common in urban areas and adapt easily to gardens and parks. Fritillaries and Crescents are not very common. The picture shows a Viceroy, a very common species.

The list is similar to most Atlantic states.

Brush footed
American Snout
Monarch
Soldier
Variegated Fritillary
Great Spangled Fritillary
Aphrodite Fritillary
Regal Fritillary
Atlantis Fritillary
Silver-bordered Fritillary
Meadow Fritillary
Red-spotted Purple or
arthemis White Admiral
astyanax Astyanax’ Red-spotted
Viceroy
Hackberry Emperor
Tawny Emperor
Brush footed
Silvery Checkerspot
Harris’ Checkerspot
Pearl Crescent
Baltimore Checkerspot
Common Buckeye
Question Mark
Eastern Comma
Gray Comma
Milbert’s Tortoiseshell
Compton Tortoiseshell
Mourning Cloak
Red Admiral
Painted Lady
American Lady
Northern Pearly-eye
Eyed Brown
Appalachian Brown
Common Ringlet
Little Wood-Satyr
Common Wood-Nymph

Butterflies: Swallowtails


picture of a Black Swallowtail butterfly
The Black, Eastern Tiger and Spicebush Swallowtails are the most common species in Connecticut.
  • Pipevine Swallowtail
  • Zebra Swallowtail
  • Black Swallowtail
  • Canadian Tiger Swallowtail
  • Eastern Tiger Swallowtail
  • Spicebush Swallowtail
  • Giant Swallowtail

Butterflies: Metalmarks


Only one metalmark species lives in Connecticut, the Northern Metalmark. It is considered endangred in the state.