60 butterflies were recorded flying in Indiana in July in our iNaturalist sample; 14 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in July

Eastern Tiger Swallowtail

Monarch

Silver-spotted Skipper

Spicebush Swallowtail

Red Admiral

Small White

Pipevine Swallowtail

Black Swallowtail

Zabulon Skipper

Pearl Crescent

Peck's Skipper

Eastern Tailed-Blue
All butterflies flying in Indiana in July
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Eastern Tiger Swallowtail | Papilio glaucus | Swallowtails and Parnassians | 1,413 | Aug (rising) |
| 2 | Monarch | Danaus plexippus | Brush-footed Butterflies | 1,132 | Aug (rising) |
| 3 | Silver-spotted Skipper | Epargyreus clarus | Skippers | 535 | Aug (rising) |
| 4 | Spicebush Swallowtail | Papilio troilus | Swallowtails and Parnassians | 522 | Jul (peak) |
| 5 | Red Admiral | Vanessa atalanta | Brush-footed Butterflies | 388 | Jun (past peak) |
| 6 | Small White | Pieris rapae | Whites, Yellows, and Sulphurs | 351 | Sep (rising) |
| 7 | Pipevine Swallowtail | Battus philenor | Swallowtails and Parnassians | 324 | Jul (peak) |
| 8 | Black Swallowtail | Papilio polyxenes | Swallowtails and Parnassians | 315 | Aug (rising) |
| 9 | Zabulon Skipper | Lon zabulon | Skippers | 298 | Aug (rising) |
| 10 | Pearl Crescent | Phyciodes tharos | Brush-footed Butterflies | 296 | Aug (rising) |
| 11 | Peck's Skipper | Polites peckius | Skippers | 283 | Sep (rising) |
| 12 | Eastern Tailed-Blue | Everes comyntas | Gossamer-winged Butterflies | 235 | Aug (rising) |
| 13 | Great Spangled Fritillary | Argynnis cybele | Brush-footed Butterflies | 220 | Jun (past peak) |
| 14 | Hackberry Emperor | Asterocampa celtis | Brush-footed Butterflies | 204 | Aug (rising) |
| 15 | Red-spotted Admiral | Limenitis arthemis | Brush-footed Butterflies | 182 | Aug (rising) |
| 16 | Question Mark | Polygonia interrogationis | Brush-footed Butterflies | 179 | Jul (peak) |
| 17 | Viceroy | Limenitis archippus | Brush-footed Butterflies | 179 | Sep (rising) |
| 18 | Summer Azure | Celastrina neglecta | Gossamer-winged Butterflies | 169 | Jul (peak) |
| 19 | Eastern Giant Swallowtail | Heraclides cresphontes | Swallowtails and Parnassians | 166 | Jul (peak) |
| 20 | Common Buckeye | Junonia coenia | Brush-footed Butterflies | 142 | Sep (rising) |
| 21 | Huron Skipper | Atalopedes huron | Skippers | 135 | Sep (rising) |
| 22 | American Snout | Libytheana carinenta | Brush-footed Butterflies | 114 | Jul (peak) |
| 23 | Silvery Checkerspot | Chlosyne nycteis | Brush-footed Butterflies | 99 | Jul (peak) |
| 24 | Zebra Swallowtail | Eurytides marcellus | Swallowtails and Parnassians | 90 | Jun (past peak) |
| 25 | Eastern Comma | Polygonia comma | Brush-footed Butterflies | 80 | Aug (rising) |
| 26 | Tawny-edged Skipper | Polites themistocles | Skippers | 74 | Aug (rising) |
| 27 | Orange Sulphur | Colias eurytheme | Whites, Yellows, and Sulphurs | 74 | Sep (rising) |
| 28 | Northern Pearly-eye | Lethe anthedon | Brush-footed Butterflies | 74 | Aug (rising) |
| 29 | Tawny Emperor | Asterocampa clyton | Brush-footed Butterflies | 69 | Aug (rising) |
| 30 | Little Wood Satyr | Megisto cymela | Brush-footed Butterflies | 67 | Jun (past peak) |
| 31 | Horace's Duskywing | Erynnis horatius | Skippers | 66 | Jul (peak) |
| 32 | Least Skipper | Ancyloxypha numitor | Skippers | 64 | Aug (rising) |
| 33 | Variegated Fritillary | Euptoieta claudia | Brush-footed Butterflies | 56 | Sep (rising) |
| 34 | Banded Hairstreak | Satyrium calanus | Gossamer-winged Butterflies | 53 | Jun (past peak) |
| 35 | Meadow Fritillary | Boloria bellona | Brush-footed Butterflies | 40 | Sep (rising) |
| 36 | Appalachian Brown | Lethe appalachia | Brush-footed Butterflies | 40 | Jul (peak) |
| 37 | Dun Skipper | Euphyes vestris | Skippers | 39 | Jul (peak) |
| 38 | Northern Broken-Dash | Polites egeremet | Skippers | 39 | Jul (peak) |
| 39 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 38 | Aug (rising) |
| 40 | Red-banded Hairstreak | Calycopis cecrops | Gossamer-winged Butterflies | 35 | Aug (rising) |
| 41 | Harvester | Feniseca tarquinius | Gossamer-winged Butterflies | 33 | Jul (peak) |
| 42 | Wild Indigo Duskywing | Erynnis baptisiae | Skippers | 32 | Aug (rising) |
| 43 | Common Wood-Nymph | Cercyonis pegala | Brush-footed Butterflies | 31 | Jul (peak) |
| 44 | Painted Lady | Vanessa cardui | Brush-footed Butterflies | 30 | Sep (rising) |
| 45 | American Copper | Lycaena hypophlaeas | Gossamer-winged Butterflies | 28 | Jul (peak) |
| 46 | American Lady | Vanessa virginiensis | Brush-footed Butterflies | 25 | May (past peak) |
| 47 | Fiery Skipper | Hylephila phyleus | Skippers | 25 | Sep (rising) |
| 48 | Delaware Skipper | Anatrytone logan | Skippers | 24 | Aug (rising) |
| 49 | Common Sootywing | Pholisora catullus | Skippers | 21 | Aug (rising) |
| 50 | Little Yellow | Eurema lisa | Whites, Yellows, and Sulphurs | 21 | Aug (rising) |