60 butterflies were recorded flying in Tennessee in April in our iNaturalist sample; 10 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in April

Eastern Tiger Swallowtail

Pipevine Swallowtail

Zebra Swallowtail

Carolina Satyr

Silver-spotted Skipper

Pearl Crescent

Eastern Tailed-Blue

Juvenal's Duskywing

Red-banded Hairstreak

Zabulon Skipper

Monarch

Spicebush Swallowtail
All butterflies flying in Tennessee in April
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Eastern Tiger Swallowtail | Papilio glaucus | Swallowtails and Parnassians | 977 | Aug (rising) |
| 2 | Pipevine Swallowtail | Battus philenor | Swallowtails and Parnassians | 750 | Jul (rising) |
| 3 | Zebra Swallowtail | Eurytides marcellus | Swallowtails and Parnassians | 451 | Apr (peak) |
| 4 | Carolina Satyr | Hermeuptychia sosybius | Brush-footed Butterflies | 392 | Apr (peak) |
| 5 | Silver-spotted Skipper | Epargyreus clarus | Skippers | 365 | Jul (rising) |
| 6 | Pearl Crescent | Phyciodes tharos | Brush-footed Butterflies | 347 | Sep (rising) |
| 7 | Eastern Tailed-Blue | Everes comyntas | Gossamer-winged Butterflies | 338 | Sep (rising) |
| 8 | Juvenal's Duskywing | Erynnis juvenalis | Skippers | 331 | Apr (peak) |
| 9 | Red-banded Hairstreak | Calycopis cecrops | Gossamer-winged Butterflies | 269 | Sep (rising) |
| 10 | Zabulon Skipper | Lon zabulon | Skippers | 268 | Aug (rising) |
| 11 | Monarch | Danaus plexippus | Brush-footed Butterflies | 259 | Sep (rising) |
| 12 | Spicebush Swallowtail | Papilio troilus | Swallowtails and Parnassians | 231 | Jul (rising) |
| 13 | Red Admiral | Vanessa atalanta | Brush-footed Butterflies | 204 | Jul (rising) |
| 14 | Eastern Comma | Polygonia comma | Brush-footed Butterflies | 158 | Mar (past peak) |
| 15 | Eastern Gemmed-Satyr | Cyllopsis gemma | Brush-footed Butterflies | 115 | Apr (peak) |
| 16 | Sleepy Duskywing | Erynnis brizo | Skippers | 104 | Apr (peak) |
| 17 | Falcate Orangetip | Anthocharis midea | Whites, Yellows, and Sulphurs | 86 | Mar (past peak) |
| 18 | American Lady | Vanessa virginiensis | Brush-footed Butterflies | 74 | Jun (rising) |
| 19 | Juniper Hairstreak | Callophrys gryneus | Gossamer-winged Butterflies | 74 | Apr (peak) |
| 20 | Small White | Pieris rapae | Whites, Yellows, and Sulphurs | 68 | Jun (rising) |
| 21 | Question Mark | Polygonia interrogationis | Brush-footed Butterflies | 67 | Aug (rising) |
| 22 | Harvester | Feniseca tarquinius | Gossamer-winged Butterflies | 56 | Apr (peak) |
| 23 | Silvery Checkerspot | Chlosyne nycteis | Brush-footed Butterflies | 54 | Jul (rising) |
| 24 | Variegated Fritillary | Euptoieta claudia | Brush-footed Butterflies | 49 | Sep (rising) |
| 25 | Huron Skipper | Atalopedes huron | Skippers | 48 | Aug (rising) |
| 26 | Orange Sulphur | Colias eurytheme | Whites, Yellows, and Sulphurs | 46 | Jul (rising) |
| 27 | Goatweed Leafwing | Anaea andria | Brush-footed Butterflies | 45 | Apr (peak) |
| 28 | Henry's Elfin | Callophrys henrici | Gossamer-winged Butterflies | 44 | Apr (peak) |
| 29 | Common Buckeye | Junonia coenia | Brush-footed Butterflies | 38 | Sep (rising) |
| 30 | Spring Azure | Celastrina ladon | Gossamer-winged Butterflies | 34 | Mar (past peak) |
| 31 | Viceroy | Limenitis archippus | Brush-footed Butterflies | 34 | Sep (rising) |
| 32 | American Snout | Libytheana carinenta | Brush-footed Butterflies | 28 | Jul (rising) |
| 33 | Hackberry Emperor | Asterocampa celtis | Brush-footed Butterflies | 28 | Aug (rising) |
| 34 | Painted Lady | Vanessa cardui | Brush-footed Butterflies | 26 | Oct (rising) |
| 35 | Mourning Cloak | Nymphalis antiopa | Brush-footed Butterflies | 25 | Mar (past peak) |
| 36 | Northern Pearly-eye | Lethe anthedon | Brush-footed Butterflies | 25 | Aug (rising) |
| 37 | Great Spangled Fritillary | Argynnis cybele | Brush-footed Butterflies | 24 | May (rising) |
| 38 | Dreamy Duskywing | Erynnis icelus | Skippers | 23 | Apr (peak) |
| 39 | Eastern Giant Swallowtail | Heraclides cresphontes | Swallowtails and Parnassians | 23 | Aug (rising) |
| 40 | Red-spotted Admiral | Limenitis arthemis | Brush-footed Butterflies | 22 | Aug (rising) |
| 41 | Summer Azure | Celastrina neglecta | Gossamer-winged Butterflies | 21 | Aug (rising) |
| 42 | White M Hairstreak | Parrhasius m-album | Gossamer-winged Butterflies | 21 | Mar (past peak) |
| 43 | Checkered White | Pontia protodice | Whites, Yellows, and Sulphurs | 19 | Aug (rising) |
| 44 | Hoary Edge | Cecropterus lyciades | Skippers | 18 | Jul (rising) |
| 45 | Cloudless Sulphur | Phoebis sennae | Whites, Yellows, and Sulphurs | 17 | Aug (rising) |
| 46 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 14 | Aug (rising) |
| 47 | Common Checkered-Skipper | Burnsius communis | Skippers | 14 | Oct (rising) |
| 48 | Least Skipper | Ancyloxypha numitor | Skippers | 13 | Aug (rising) |
| 49 | Common Sootywing | Pholisora catullus | Skippers | 11 | Sep (rising) |
| 50 | Brown Elfin | Callophrys augustinus | Gossamer-winged Butterflies | 10 | Mar (past peak) |