60 butterflies were recorded flying in Arkansas in May in our iNaturalist sample; 8 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in May

Great Spangled Fritillary

Diana Fritillary

Monarch

Eastern Tailed-Blue

American Lady

Common Buckeye

Spicebush Swallowtail
Hackberry Emperor

Pipevine Swallowtail

Zebra Swallowtail

Question Mark

Little Wood Satyr
All butterflies flying in Arkansas in May
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Great Spangled Fritillary | Argynnis cybele | Brush-footed Butterflies | 513 | May (peak) |
| 2 | Diana Fritillary | Argynnis diana | Brush-footed Butterflies | 464 | Jun (rising) |
| 3 | Monarch | Danaus plexippus | Brush-footed Butterflies | 384 | Sep (rising) |
| 4 | Eastern Tailed-Blue | Everes comyntas | Gossamer-winged Butterflies | 295 | Jun (rising) |
| 5 | American Lady | Vanessa virginiensis | Brush-footed Butterflies | 288 | Jun (rising) |
| 6 | Common Buckeye | Junonia coenia | Brush-footed Butterflies | 283 | Aug (rising) |
| 7 | Spicebush Swallowtail | Papilio troilus | Swallowtails and Parnassians | 268 | Aug (rising) |
| 8 | Hackberry Emperor | Asterocampa celtis | Brush-footed Butterflies | 257 | Sep (rising) |
| 9 | Pipevine Swallowtail | Battus philenor | Swallowtails and Parnassians | 242 | Aug (rising) |
| 10 | Zebra Swallowtail | Eurytides marcellus | Swallowtails and Parnassians | 224 | Apr (past peak) |
| 11 | Question Mark | Polygonia interrogationis | Brush-footed Butterflies | 218 | May (peak) |
| 12 | Little Wood Satyr | Megisto cymela | Brush-footed Butterflies | 185 | May (peak) |
| 13 | Eastern Tiger Swallowtail | Papilio glaucus | Swallowtails and Parnassians | 180 | Aug (rising) |
| 14 | Silvery Checkerspot | Chlosyne nycteis | Brush-footed Butterflies | 159 | Jul (rising) |
| 15 | Pearl Crescent | Phyciodes tharos | Brush-footed Butterflies | 153 | Jun (rising) |
| 16 | Variegated Fritillary | Euptoieta claudia | Brush-footed Butterflies | 140 | Aug (rising) |
| 17 | Orange Sulphur | Colias eurytheme | Whites, Yellows, and Sulphurs | 136 | Oct (rising) |
| 18 | Mourning Cloak | Nymphalis antiopa | Brush-footed Butterflies | 119 | May (peak) |
| 19 | Silver-spotted Skipper | Epargyreus clarus | Skippers | 119 | Aug (rising) |
| 20 | American Snout | Libytheana carinenta | Brush-footed Butterflies | 111 | Jun (rising) |
| 21 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 102 | Jun (rising) |
| 22 | Hoary Edge | Cecropterus lyciades | Skippers | 101 | Jul (rising) |
| 23 | Red Admiral | Vanessa atalanta | Brush-footed Butterflies | 84 | Jul (rising) |
| 24 | Northern Pearly-eye | Lethe anthedon | Brush-footed Butterflies | 78 | Aug (rising) |
| 25 | Carolina Satyr | Hermeuptychia sosybius | Brush-footed Butterflies | 77 | Apr (past peak) |
| 26 | Fiery Skipper | Hylephila phyleus | Skippers | 73 | Aug (rising) |
| 27 | Zabulon Skipper | Lon zabulon | Skippers | 63 | Aug (rising) |
| 28 | Summer Azure | Celastrina neglecta | Gossamer-winged Butterflies | 60 | May (peak) |
| 29 | Northern Cloudywing | Cecropterus pylades | Skippers | 55 | May (peak) |
| 30 | Eastern Comma | Polygonia comma | Brush-footed Butterflies | 54 | Mar (past peak) |
| 31 | Eastern Giant Swallowtail | Heraclides cresphontes | Swallowtails and Parnassians | 54 | Aug (rising) |
| 32 | Goatweed Leafwing | Anaea andria | Brush-footed Butterflies | 52 | Apr (past peak) |
| 33 | Horace's Duskywing | Erynnis horatius | Skippers | 47 | Jun (rising) |
| 34 | Banded Hairstreak | Satyrium calanus | Gossamer-winged Butterflies | 43 | May (peak) |
| 35 | Dun Skipper | Euphyes vestris | Skippers | 34 | Aug (rising) |
| 36 | Viceroy | Limenitis archippus | Brush-footed Butterflies | 33 | Sep (rising) |
| 37 | Checkered White | Pontia protodice | Whites, Yellows, and Sulphurs | 33 | Jul (rising) |
| 38 | Dainty Sulphur | Nathalis iole | Whites, Yellows, and Sulphurs | 28 | Oct (rising) |
| 39 | Red-banded Hairstreak | Calycopis cecrops | Gossamer-winged Butterflies | 27 | Sep (rising) |
| 40 | Red-spotted Admiral | Limenitis arthemis | Brush-footed Butterflies | 26 | Jul (rising) |
| 41 | Gorgone Checkerspot | Chlosyne gorgone | Brush-footed Butterflies | 25 | May (peak) |
| 42 | Huron Skipper | Atalopedes huron | Skippers | 25 | Oct (rising) |
| 43 | Northern Broken-Dash | Polites egeremet | Skippers | 21 | Jun (rising) |
| 44 | Painted Lady | Vanessa cardui | Brush-footed Butterflies | 20 | Sep (rising) |
| 45 | Sleepy Orange | Eurema nicippe | Whites, Yellows, and Sulphurs | 20 | Aug (rising) |
| 46 | Small White | Pieris rapae | Whites, Yellows, and Sulphurs | 19 | Jul (rising) |
| 47 | Delaware Skipper | Anatrytone logan | Skippers | 19 | Aug (rising) |
| 48 | Little Glassywing | Vernia verna | Skippers | 18 | Aug (rising) |
| 49 | Southern Broken-Dash | Polites otho | Skippers | 18 | Sep (rising) |
| 50 | Least Skipper | Ancyloxypha numitor | Skippers | 17 | Aug (rising) |