Butterflies of the United States by state and month, built from research-grade iNaturalist observations. 220 species have their own page with a state-by-state season table.
Choose a state
- Alabama146
- Alaska76
- Arizona277
- Arkansas139
- California220
- Colorado228
- Connecticut112
- Delaware80
- District of Columbia69
- Florida186
- Georgia162
- Hawaii18
- Idaho148
- Illinois124
- Indiana123
- Iowa105
- Kansas125
- Kentucky110
- Louisiana136
- Maine112
- Maryland132
- Massachusetts117
- Michigan146
- Minnesota134
- Mississippi120
- Missouri124
- Montana173
- Nebraska144
- Nevada164
- New Hampshire119
- New Jersey127
- New Mexico255
- New York144
- North Carolina153
- North Dakota105
- Ohio137
- Oklahoma165
- Oregon167
- Pennsylvania130
- Rhode Island88
- South Carolina146
- South Dakota130
- Tennessee133
- Texas261
- Utah189
- Vermont105
- Virginia147
- Washington148
- West Virginia117
- Wisconsin144
- Wyoming187
Most-observed butterflies
Monarch
Eastern Tiger Swallowtail
Gulf Fritillary
Common Buckeye
Small White
Red Admiral
Fiery Skipper
Silver-spotted Skipper
Pearl Crescent
Painted Lady
Gray Hairstreak
Pipevine Swallowtail
Huron Skipper
Black Swallowtail
American Lady
Spicebush Swallowtail
Variegated Fritillary
Eastern Tailed-Blue
Queen
Hackberry Emperor
Orange Sulphur
Mourning Cloak
Great Spangled Fritillary
Zabulon Skipper
All butterflies A–Z
- Acmon Blue
- American Branded Skipper
- American Copper
- American Lady
- American Silver-bordered Fritillary
- American Snout
- Anise Swallowtail
- Anna's Blue
- Aphrodite Fritillary
- Appalachian Brown
- Arizona Sister
- Atala
- Atlantis Fritillary
- Baltimore Checkerspot
- Banded Hairstreak
- Barred Yellow
- Becker's White
- Behr's Metalmark
- Bernardino Blue
- Black Swallowtail
- Blue Copper
- Boisduval's Blue
- Bordered Patch
- Brazilian Skipper
- Broad-winged Skipper
- Bronze Copper
- Brown Elfin
- Brown Longtail
- California Patch
- California Sister
- California Tortoiseshell
- Callippe Fritillary
- Canadian Tiger Swallowtail
- Carolina Satyr
- Cassius Blue
- Celia's Roadside-Skipper
- Ceraunus Blue
- Checkered White
- Clodius Parnassian
- Clouded Skipper
- Clouded Sulphur
- Cloudless Sulphur
- Common Buckeye
- Common Checkered-Skipper
- Common Mestra
- Common Ringlet
- Common Sootywing
- Common Wood-Nymph
- Coral Hairstreak
- Coronis Fritillary
- Dainty Sulphur
- Delaware Skipper
- Desert Checkered-Skipper
- Diana Fritillary
- Dorantes Longtail
- Dreamy Duskywing
- Dun Skipper
- Dusky-blue Groundstreak
- Eastern Comma
- Eastern Gemmed-Satyr
- Eastern Giant Swallowtail
- Eastern Pine Elfin
- Eastern Tailed-Blue
- Eastern Tiger Swallowtail
- Echo Azure
- Edith's Checkerspot
- Elada Checkerspot
- Empress Leilia
- Essex Skipper
- Eufala Skipper
- Eyed Brown
- Falcate Orangetip
- Fatal Metalmark
- Field Crescent
- Field Skipper
- Fiery Skipper
- Funereal Duskywing
- Goatweed Leafwing
- Gorgone Checkerspot
- Gray Buckeye
- Gray Comma
- Gray Hairstreak
- Great Purple Hairstreak
- Great Southern White
- Great Spangled Fritillary
- Green Comma
- Greenish Blue
- Gulf Fritillary
- Hackberry Emperor
- Harvester
- Hedgerow Hairstreak
- Henry's Elfin
- Hoary Comma
- Hoary Edge
- Hobomok Skipper
- Horace's Duskywing
- Huron Skipper
- Hydaspe Fritillary
- Juba Skipper
- Julia Heliconian
- Juniper Hairstreak
- Juvenal's Duskywing
- Karner Blue
- Large Orange Sulphur
- Laviana White-Skipper
- Least Skipper
- Little Glassywing
- Little Metalmark
- Little Wood Satyr
- Little Yellow
- Long Dash
- Long-tailed Skipper
- Lorquin's Admiral
- Lotus Hairstreak
- Lupine Blue
- Lyside Sulphur
- Mallow Scrub-Hairstreak
- Margined White
- Marine Blue
- Meadow Fritillary
- Melissa Blue
- Mexican Bluewing
- Mexican Yellow
- Milbert's Tortoiseshell
- Monarch
- Monk Skipper
- Mormon Fritillary
- Mournful Duskywing
- Mourning Cloak
- Mylitta Crescent
- Northern Broken-Dash
- Northern Checkerspot
- Northern Cloudywing
- Northern Crescent
- Northern Pearly-eye
- Northern White-Skipper
- Oak Hairstreak
- Ocola Skipper
- Orange Skipperling
- Orange Sulphur
- Orange-barred Sulphur
- Pacific Fritillary
- Painted Lady
- Palamedes Swallowtail
- Pale Swallowtail
- Pearl Crescent
- Peck's Skipper
- Phaon Crescent
- Pine White
- Pipevine Swallowtail
- Polydamas Swallowtail
- Propertius Duskywing
- Purplish Copper
- Queen
- Question Mark
- Reakirt's Blue
- Red Admiral
- Red-banded Hairstreak
- Red-bordered Metalmark
- Red-spotted Admiral
- Rocky Mountain Parnassian
- Ruddy Daggerwing
- Rural Skipper
- Sagebrush Checkerspot
- Salt Marsh Skipper
- Sandhill Skipper
- Sara Orangetip
- Satyr Comma
- Sickle-winged Skipper
- Silver-spotted Skipper
- Silvery Blue
- Silvery Checkerspot
- Sleepy Duskywing
- Sleepy Orange
- Small White
- Small Wood-Nymph
- Snowberry Checkerspot
- Southern Broken-Dash
- Southern Cloudywing
- Southern Dogface
- Southern Pearly-eye
- Southern Skipperling
- Spicebush Swallowtail
- Spring Azure
- Summer Azure
- Swarthy Skipper
- Tawny Emperor
- Tawny-edged Skipper
- Taxiles Skipper
- Texan Crescent
- Theona Checkerspot
- Three-spotted Skipper
- Tropical Checkered-Skipper
- Twin-spot Skipper
- Two-tailed Swallowtail
- Umber Skipper
- Variable Checkerspot
- Variegated Fritillary
- Vesta Crescent
- Viceroy
- Weidemeyer's Admiral
- West Coast Lady
- West Indian Mangrove Buckeye
- Western Giant Swallowtail
- Western Pine Elfin
- Western Pygmy-Blue
- Western Tailed-blue
- Western Tiger Swallowtail
- Western White
- Whirlabout
- White Checkered-Skipper
- White M Hairstreak
- White Peacock
- White-striped Longtail
- Wild Indigo Duskywing
- Woodland Skipper
- Zabulon Skipper
- Zarucco Duskywing
- Zebra Longwing
- Zebra Swallowtail