36 butterflies were recorded flying in Utah in March in our iNaturalist sample; 1 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in March

California Tortoiseshell
Mourning Cloak

Painted Lady

Small White

Anise Swallowtail

Milbert's Tortoiseshell

Satyr Comma

Hoary Comma
Mylitta Crescent
Becker's White
Echo Azure
Checkered White
All butterflies flying in Utah in March
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | California Tortoiseshell | Nymphalis californica | Brush-footed Butterflies | 117 | Jul (rising) |
| 2 | Mourning Cloak | Nymphalis antiopa | Brush-footed Butterflies | 78 | Apr (rising) |
| 3 | Painted Lady | Vanessa cardui | Brush-footed Butterflies | 41 | Apr (rising) |
| 4 | Small White | Pieris rapae | Whites, Yellows, and Sulphurs | 40 | Jun (rising) |
| 5 | Anise Swallowtail | Papilio zelicaon | Swallowtails and Parnassians | 21 | May (rising) |
| 6 | Milbert's Tortoiseshell | Aglais milberti | Brush-footed Butterflies | 19 | Jul (rising) |
| 7 | Satyr Comma | Polygonia satyrus | Brush-footed Butterflies | 16 | Jun (rising) |
| 8 | Hoary Comma | Polygonia gracilis | Brush-footed Butterflies | 14 | Sep (rising) |
| 9 | Mylitta Crescent | Phyciodes mylitta | Brush-footed Butterflies | 13 | Jun (rising) |
| 10 | Becker's White | Pontia beckerii | Whites, Yellows, and Sulphurs | 13 | May (rising) |
| 11 | Echo Azure | Celastrina echo | Gossamer-winged Butterflies | 10 | May (rising) |
| 12 | Checkered White | Pontia protodice | Whites, Yellows, and Sulphurs | 10 | Jun (rising) |
| 13 | American Snout | Libytheana carinenta | Brush-footed Butterflies | 8 | Oct (rising) |
| 14 | Sleepy Duskywing | Erynnis brizo | Skippers | 7 | May (rising) |
| 15 | Sagebrush Checkerspot | Chlosyne acastus | Brush-footed Butterflies | 6 | May (rising) |
| 16 | Common Checkered-Skipper | Burnsius communis | Skippers | 6 | Jul (rising) |
| 17 | West Coast Lady | Vanessa annabella | Brush-footed Butterflies | 5 | May (rising) |
| 18 | Marine Blue | Leptotes marina | Gossamer-winged Butterflies | 5 | Jul (rising) |
| 19 | Variegated Fritillary | Euptoieta claudia | Brush-footed Butterflies | 5 | Jun (rising) |
| 20 | Juniper Hairstreak | Callophrys gryneus | Gossamer-winged Butterflies | 5 | Jun (rising) |
| 21 | Gray Buckeye | Junonia grisea | Brush-footed Butterflies | 5 | Oct (rising) |
| 22 | Red Admiral | Vanessa atalanta | Brush-footed Butterflies | 4 | May (rising) |
| 23 | Western Pygmy-Blue | Brephidium exilis | Gossamer-winged Butterflies | 4 | Oct (rising) |
| 24 | Orange Sulphur | Colias eurytheme | Whites, Yellows, and Sulphurs | 4 | Oct (rising) |
| 25 | Two-tailed Swallowtail | Papilio multicaudata | Swallowtails and Parnassians | 4 | Jun (rising) |
| 26 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 3 | Jul (rising) |
| 27 | Dainty Sulphur | Nathalis iole | Whites, Yellows, and Sulphurs | 3 | Jun (rising) |
| 28 | Silvery Blue | Glaucopsyche lygdamus | Gossamer-winged Butterflies | 2 | May (rising) |
| 29 | Brown Elfin | Callophrys augustinus | Gossamer-winged Butterflies | 2 | May (rising) |
| 30 | Queen | Danaus gilippus | Brush-footed Butterflies | 1 | May (rising) |
| 31 | Funereal Duskywing | Erynnis funeralis | Skippers | 1 | Mar (peak) |
| 32 | Sleepy Orange | Eurema nicippe | Whites, Yellows, and Sulphurs | 1 | Sep (rising) |
| 33 | Weidemeyer's Admiral | Limenitis weidemeyerii | Brush-footed Butterflies | 1 | Jul (rising) |
| 34 | Green Comma | Polygonia faunus | Brush-footed Butterflies | 1 | Sep (rising) |
| 35 | Juba Skipper | Hesperia juba | Skippers | 1 | May (rising) |
| 36 | Western White | Pontia occidentalis | Whites, Yellows, and Sulphurs | 1 | Jun (rising) |