60 butterflies were recorded flying in Texas in December in our iNaturalist sample; 0 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in December

Gulf Fritillary

Queen

Monarch

Red Admiral

American Snout

Common Buckeye
Sleepy Orange

Orange Sulphur

Little Yellow

Dainty Sulphur

Painted Lady

Variegated Fritillary
All butterflies flying in Texas in December
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Gulf Fritillary | Dione vanillae | Brush-footed Butterflies | 2,271 | Oct (past peak) |
| 2 | Queen | Danaus gilippus | Brush-footed Butterflies | 2,217 | Oct (past peak) |
| 3 | Monarch | Danaus plexippus | Brush-footed Butterflies | 2,039 | Oct (past peak) |
| 4 | Red Admiral | Vanessa atalanta | Brush-footed Butterflies | 1,545 | Apr (past peak) |
| 5 | American Snout | Libytheana carinenta | Brush-footed Butterflies | 1,104 | Oct (past peak) |
| 6 | Common Buckeye | Junonia coenia | Brush-footed Butterflies | 975 | Apr (past peak) |
| 7 | Sleepy Orange | Eurema nicippe | Whites, Yellows, and Sulphurs | 909 | Oct (past peak) |
| 8 | Orange Sulphur | Colias eurytheme | Whites, Yellows, and Sulphurs | 848 | Apr (past peak) |
| 9 | Little Yellow | Eurema lisa | Whites, Yellows, and Sulphurs | 837 | Oct (past peak) |
| 10 | Dainty Sulphur | Nathalis iole | Whites, Yellows, and Sulphurs | 822 | Apr (past peak) |
| 11 | Painted Lady | Vanessa cardui | Brush-footed Butterflies | 790 | Oct (past peak) |
| 12 | Variegated Fritillary | Euptoieta claudia | Brush-footed Butterflies | 712 | Apr (past peak) |
| 13 | Fiery Skipper | Hylephila phyleus | Skippers | 693 | Oct (past peak) |
| 14 | Ceraunus Blue | Hemiargus ceraunus | Gossamer-winged Butterflies | 630 | Oct (past peak) |
| 15 | Mallow Scrub-Hairstreak | Strymon istapa | Gossamer-winged Butterflies | 585 | Nov (past peak) |
| 16 | Cloudless Sulphur | Phoebis sennae | Whites, Yellows, and Sulphurs | 550 | Oct (past peak) |
| 17 | American Lady | Vanessa virginiensis | Brush-footed Butterflies | 513 | Apr (past peak) |
| 18 | Southern Dogface | Zerene cesonia | Whites, Yellows, and Sulphurs | 505 | Oct (past peak) |
| 19 | Phaon Crescent | Phyciodes phaon | Brush-footed Butterflies | 477 | Oct (past peak) |
| 20 | Clouded Skipper | Lerema accius | Skippers | 471 | Oct (past peak) |
| 21 | Reakirt's Blue | Echinargus isola | Gossamer-winged Butterflies | 467 | Apr (past peak) |
| 22 | Common Mestra | Mestra amymone | Brush-footed Butterflies | 439 | Oct (past peak) |
| 23 | White Peacock | Anartia jatrophae | Brush-footed Butterflies | 379 | Nov (past peak) |
| 24 | Laviana White-Skipper | Heliopetes laviana | Skippers | 359 | Nov (past peak) |
| 25 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 316 | Apr (past peak) |
| 26 | Eufala Skipper | Lerodea eufala | Skippers | 306 | Oct (past peak) |
| 27 | Mexican Bluewing | Myscelia ethusa | Brush-footed Butterflies | 304 | Nov (past peak) |
| 28 | Pipevine Swallowtail | Battus philenor | Swallowtails and Parnassians | 292 | Apr (past peak) |
| 29 | Checkered White | Pontia protodice | Whites, Yellows, and Sulphurs | 290 | Apr (past peak) |
| 30 | Lyside Sulphur | Kricogonia lyside | Whites, Yellows, and Sulphurs | 285 | Apr (past peak) |
| 31 | Great Southern White | Ascia monuste | Whites, Yellows, and Sulphurs | 284 | Apr (past peak) |
| 32 | Dusky-blue Groundstreak | Calycopis isobeon | Gossamer-winged Butterflies | 280 | Oct (past peak) |
| 33 | Large Orange Sulphur | Phoebis agarithe | Whites, Yellows, and Sulphurs | 276 | Oct (past peak) |
| 34 | Sickle-winged Skipper | Eantis tamenund | Skippers | 270 | Nov (past peak) |
| 35 | Brown Longtail | Spicauda procne | Skippers | 265 | Nov (past peak) |
| 36 | Tropical Checkered-Skipper | Burnsius oileus | Skippers | 263 | Oct (past peak) |
| 37 | Western Pygmy-Blue | Brephidium exilis | Gossamer-winged Butterflies | 248 | Oct (past peak) |
| 38 | Long-tailed Skipper | Urbanus proteus | Skippers | 246 | Oct (past peak) |
| 39 | Dorantes Longtail | Cecropterus dorantes | Skippers | 246 | Nov (past peak) |
| 40 | Fatal Metalmark | Calephelis nemesis | Metalmark Butterflies | 240 | Oct (past peak) |
| 41 | Vesta Crescent | Phyciodes graphica | Brush-footed Butterflies | 219 | Apr (past peak) |
| 42 | Question Mark | Polygonia interrogationis | Brush-footed Butterflies | 211 | Apr (past peak) |
| 43 | Zebra Longwing | Heliconius charithonia | Brush-footed Butterflies | 207 | Nov (past peak) |
| 44 | Texan Crescent | Anthanassa texana | Brush-footed Butterflies | 207 | Apr (past peak) |
| 45 | Empress Leilia | Asterocampa leilia | Brush-footed Butterflies | 194 | Nov (past peak) |
| 46 | White-striped Longtail | Chioides albofasciatus | Skippers | 186 | Oct (past peak) |
| 47 | Cassius Blue | Leptotes cassius | Gossamer-winged Butterflies | 158 | Nov (past peak) |
| 48 | Bordered Patch | Chlosyne lacinia | Brush-footed Butterflies | 158 | Jul (past peak) |
| 49 | Huron Skipper | Atalopedes huron | Skippers | 153 | Oct (past peak) |
| 50 | Tawny Emperor | Asterocampa clyton | Brush-footed Butterflies | 151 | Oct (past peak) |