60 butterflies were recorded flying in Florida in October in our iNaturalist sample; 9 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in October

Gulf Fritillary
White Peacock

Long-tailed Skipper

Monarch

Common Buckeye

Ocola Skipper

Cloudless Sulphur
Zebra Longwing

Fiery Skipper
Atala

Phaon Crescent

Eastern Tiger Swallowtail
All butterflies flying in Florida in October
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Gulf Fritillary | Dione vanillae | Brush-footed Butterflies | 4,346 | Oct (peak) |
| 2 | White Peacock | Anartia jatrophae | Brush-footed Butterflies | 2,668 | Oct (peak) |
| 3 | Long-tailed Skipper | Urbanus proteus | Skippers | 2,434 | Oct (peak) |
| 4 | Monarch | Danaus plexippus | Brush-footed Butterflies | 1,833 | Apr (past peak) |
| 5 | Common Buckeye | Junonia coenia | Brush-footed Butterflies | 1,814 | Oct (peak) |
| 6 | Ocola Skipper | Panoquina ocola | Skippers | 1,142 | Oct (peak) |
| 7 | Cloudless Sulphur | Phoebis sennae | Whites, Yellows, and Sulphurs | 965 | Sep (past peak) |
| 8 | Zebra Longwing | Heliconius charithonia | Brush-footed Butterflies | 954 | Apr (past peak) |
| 9 | Fiery Skipper | Hylephila phyleus | Skippers | 772 | Sep (past peak) |
| 10 | Atala | Eumaeus atala | Gossamer-winged Butterflies | 741 | Jul (past peak) |
| 11 | Phaon Crescent | Phyciodes phaon | Brush-footed Butterflies | 710 | Apr (past peak) |
| 12 | Eastern Tiger Swallowtail | Papilio glaucus | Swallowtails and Parnassians | 635 | Sep (past peak) |
| 13 | Barred Yellow | Eurema daira | Whites, Yellows, and Sulphurs | 625 | Nov (rising) |
| 14 | Queen | Danaus gilippus | Brush-footed Butterflies | 613 | Sep (past peak) |
| 15 | Ceraunus Blue | Hemiargus ceraunus | Gossamer-winged Butterflies | 570 | Sep (past peak) |
| 16 | Eastern Giant Swallowtail | Heraclides cresphontes | Swallowtails and Parnassians | 554 | Sep (past peak) |
| 17 | Palamedes Swallowtail | Papilio palamedes | Swallowtails and Parnassians | 540 | Sep (past peak) |
| 18 | Whirlabout | Hedone vibex | Skippers | 481 | Apr (past peak) |
| 19 | Little Yellow | Eurema lisa | Whites, Yellows, and Sulphurs | 466 | Oct (peak) |
| 20 | Monk Skipper | Choranthus capucinus | Skippers | 459 | Apr (past peak) |
| 21 | Twin-spot Skipper | Oligoria maculata | Skippers | 393 | Sep (past peak) |
| 22 | Southern Broken-Dash | Polites otho | Skippers | 388 | Sep (past peak) |
| 23 | Horace's Duskywing | Erynnis horatius | Skippers | 377 | Apr (past peak) |
| 24 | Dorantes Longtail | Cecropterus dorantes | Skippers | 371 | Nov (rising) |
| 25 | Viceroy | Limenitis archippus | Brush-footed Butterflies | 299 | Sep (past peak) |
| 26 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 281 | Jun (past peak) |
| 27 | Red-banded Hairstreak | Calycopis cecrops | Gossamer-winged Butterflies | 272 | May (past peak) |
| 28 | Tropical Checkered-Skipper | Burnsius oileus | Skippers | 264 | Sep (past peak) |
| 29 | Spicebush Swallowtail | Papilio troilus | Swallowtails and Parnassians | 245 | Sep (past peak) |
| 30 | Three-spotted Skipper | Cymaenes tripunctus | Skippers | 242 | Sep (past peak) |
| 31 | Zebra Swallowtail | Eurytides marcellus | Swallowtails and Parnassians | 240 | Mar (past peak) |
| 32 | Clouded Skipper | Lerema accius | Skippers | 240 | Sep (past peak) |
| 33 | Delaware Skipper | Anatrytone logan | Skippers | 233 | Sep (past peak) |
| 34 | Cassius Blue | Leptotes cassius | Gossamer-winged Butterflies | 232 | Apr (past peak) |
| 35 | Little Metalmark | Calephelis virginiensis | Metalmark Butterflies | 231 | Oct (peak) |
| 36 | Sleepy Orange | Eurema nicippe | Whites, Yellows, and Sulphurs | 191 | Aug (past peak) |
| 37 | Carolina Satyr | Hermeuptychia sosybius | Brush-footed Butterflies | 189 | Mar (past peak) |
| 38 | West Indian Mangrove Buckeye | Junonia neildi | Brush-footed Butterflies | 187 | Mar (past peak) |
| 39 | Julia Heliconian | Dryas iulia | Brush-footed Butterflies | 174 | Apr (past peak) |
| 40 | Orange-barred Sulphur | Phoebis philea | Whites, Yellows, and Sulphurs | 174 | Apr (past peak) |
| 41 | Pearl Crescent | Phyciodes tharos | Brush-footed Butterflies | 173 | Apr (past peak) |
| 42 | Polydamas Swallowtail | Battus polydamas | Swallowtails and Parnassians | 168 | Jul (past peak) |
| 43 | Pipevine Swallowtail | Battus philenor | Swallowtails and Parnassians | 152 | May (past peak) |
| 44 | Ruddy Daggerwing | Marpesia petreus | Brush-footed Butterflies | 149 | Apr (past peak) |
| 45 | Tawny-edged Skipper | Polites themistocles | Skippers | 147 | Oct (peak) |
| 46 | Northern Broken-Dash | Polites egeremet | Skippers | 133 | Oct (peak) |
| 47 | White Checkered-Skipper | Burnsius albezens | Skippers | 126 | Jul (past peak) |
| 48 | Great Purple Hairstreak | Atlides halesus | Gossamer-winged Butterflies | 125 | Apr (past peak) |
| 49 | Huron Skipper | Atalopedes huron | Skippers | 112 | Jul (past peak) |
| 50 | Brazilian Skipper | Calpodes ethlius | Skippers | 111 | Sep (past peak) |