60 butterflies were recorded flying in Tennessee in August in our iNaturalist sample; 19 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in August

Eastern Tiger Swallowtail
Huron Skipper

Monarch

Gulf Fritillary

Pipevine Swallowtail

Silver-spotted Skipper
Hackberry Emperor

Common Buckeye

Spicebush Swallowtail

Cloudless Sulphur

Zabulon Skipper

Pearl Crescent
All butterflies flying in Tennessee in August
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Eastern Tiger Swallowtail | Papilio glaucus | Swallowtails and Parnassians | 2,370 | Aug (peak) |
| 2 | Huron Skipper | Atalopedes huron | Skippers | 1,531 | Aug (peak) |
| 3 | Monarch | Danaus plexippus | Brush-footed Butterflies | 1,217 | Sep (rising) |
| 4 | Gulf Fritillary | Dione vanillae | Brush-footed Butterflies | 1,207 | Sep (rising) |
| 5 | Pipevine Swallowtail | Battus philenor | Swallowtails and Parnassians | 1,165 | Jul (past peak) |
| 6 | Silver-spotted Skipper | Epargyreus clarus | Skippers | 1,072 | Jul (past peak) |
| 7 | Hackberry Emperor | Asterocampa celtis | Brush-footed Butterflies | 905 | Aug (peak) |
| 8 | Common Buckeye | Junonia coenia | Brush-footed Butterflies | 890 | Sep (rising) |
| 9 | Spicebush Swallowtail | Papilio troilus | Swallowtails and Parnassians | 683 | Jul (past peak) |
| 10 | Cloudless Sulphur | Phoebis sennae | Whites, Yellows, and Sulphurs | 592 | Aug (peak) |
| 11 | Zabulon Skipper | Lon zabulon | Skippers | 592 | Aug (peak) |
| 12 | Pearl Crescent | Phyciodes tharos | Brush-footed Butterflies | 484 | Sep (rising) |
| 13 | Variegated Fritillary | Euptoieta claudia | Brush-footed Butterflies | 447 | Sep (rising) |
| 14 | Eastern Tailed-Blue | Everes comyntas | Gossamer-winged Butterflies | 410 | Sep (rising) |
| 15 | Great Spangled Fritillary | Argynnis cybele | Brush-footed Butterflies | 405 | May (past peak) |
| 16 | Sleepy Orange | Eurema nicippe | Whites, Yellows, and Sulphurs | 396 | Aug (peak) |
| 17 | Carolina Satyr | Hermeuptychia sosybius | Brush-footed Butterflies | 388 | Apr (past peak) |
| 18 | Tawny Emperor | Asterocampa clyton | Brush-footed Butterflies | 343 | Aug (peak) |
| 19 | Question Mark | Polygonia interrogationis | Brush-footed Butterflies | 312 | Aug (peak) |
| 20 | Fiery Skipper | Hylephila phyleus | Skippers | 291 | Oct (rising) |
| 21 | Clouded Skipper | Lerema accius | Skippers | 262 | Sep (rising) |
| 22 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 261 | Aug (peak) |
| 23 | Silvery Checkerspot | Chlosyne nycteis | Brush-footed Butterflies | 253 | Jul (past peak) |
| 24 | Northern Pearly-eye | Lethe anthedon | Brush-footed Butterflies | 234 | Aug (peak) |
| 25 | Red-banded Hairstreak | Calycopis cecrops | Gossamer-winged Butterflies | 226 | Sep (rising) |
| 26 | Viceroy | Limenitis archippus | Brush-footed Butterflies | 210 | Sep (rising) |
| 27 | American Snout | Libytheana carinenta | Brush-footed Butterflies | 179 | Jul (past peak) |
| 28 | Eastern Giant Swallowtail | Heraclides cresphontes | Swallowtails and Parnassians | 176 | Aug (peak) |
| 29 | Summer Azure | Celastrina neglecta | Gossamer-winged Butterflies | 174 | Aug (peak) |
| 30 | Red-spotted Admiral | Limenitis arthemis | Brush-footed Butterflies | 172 | Aug (peak) |
| 31 | Red Admiral | Vanessa atalanta | Brush-footed Butterflies | 163 | Jul (past peak) |
| 32 | Painted Lady | Vanessa cardui | Brush-footed Butterflies | 146 | Oct (rising) |
| 33 | Diana Fritillary | Argynnis diana | Brush-footed Butterflies | 142 | Jun (past peak) |
| 34 | Small White | Pieris rapae | Whites, Yellows, and Sulphurs | 122 | Jun (past peak) |
| 35 | Eastern Comma | Polygonia comma | Brush-footed Butterflies | 110 | Mar (past peak) |
| 36 | Zebra Swallowtail | Eurytides marcellus | Swallowtails and Parnassians | 107 | Apr (past peak) |
| 37 | Horace's Duskywing | Erynnis horatius | Skippers | 93 | Jul (past peak) |
| 38 | Hoary Edge | Cecropterus lyciades | Skippers | 89 | Jul (past peak) |
| 39 | Long-tailed Skipper | Urbanus proteus | Skippers | 86 | Oct (rising) |
| 40 | Little Glassywing | Vernia verna | Skippers | 85 | Aug (peak) |
| 41 | Least Skipper | Ancyloxypha numitor | Skippers | 79 | Aug (peak) |
| 42 | Orange Sulphur | Colias eurytheme | Whites, Yellows, and Sulphurs | 68 | Jul (past peak) |
| 43 | Appalachian Brown | Lethe appalachia | Brush-footed Butterflies | 64 | Aug (peak) |
| 44 | Ocola Skipper | Panoquina ocola | Skippers | 62 | Oct (rising) |
| 45 | Delaware Skipper | Anatrytone logan | Skippers | 61 | Aug (peak) |
| 46 | Little Yellow | Eurema lisa | Whites, Yellows, and Sulphurs | 60 | Sep (rising) |
| 47 | Checkered White | Pontia protodice | Whites, Yellows, and Sulphurs | 58 | Aug (peak) |
| 48 | Eastern Gemmed-Satyr | Cyllopsis gemma | Brush-footed Butterflies | 55 | Apr (past peak) |
| 49 | Dun Skipper | Euphyes vestris | Skippers | 52 | Aug (peak) |
| 50 | American Lady | Vanessa virginiensis | Brush-footed Butterflies | 51 | Jun (past peak) |