60 butterflies were recorded flying in Louisiana in March in our iNaturalist sample; 12 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top butterflies in March

Monarch

Pearl Crescent

Carolina Satyr

Red-banded Hairstreak

Red Admiral

Eastern Tiger Swallowtail

Question Mark

Spicebush Swallowtail

Eastern Giant Swallowtail

Little Wood Satyr

Common Buckeye

Falcate Orangetip
All butterflies flying in Louisiana in March
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Monarch | Danaus plexippus | Brush-footed Butterflies | 284 | Oct (rising) |
| 2 | Pearl Crescent | Phyciodes tharos | Brush-footed Butterflies | 267 | May (rising) |
| 3 | Carolina Satyr | Hermeuptychia sosybius | Brush-footed Butterflies | 194 | Mar (peak) |
| 4 | Red-banded Hairstreak | Calycopis cecrops | Gossamer-winged Butterflies | 190 | Mar (peak) |
| 5 | Red Admiral | Vanessa atalanta | Brush-footed Butterflies | 181 | Mar (peak) |
| 6 | Eastern Tiger Swallowtail | Papilio glaucus | Swallowtails and Parnassians | 165 | Aug (rising) |
| 7 | Question Mark | Polygonia interrogationis | Brush-footed Butterflies | 154 | Apr (rising) |
| 8 | Spicebush Swallowtail | Papilio troilus | Swallowtails and Parnassians | 129 | Aug (rising) |
| 9 | Eastern Giant Swallowtail | Heraclides cresphontes | Swallowtails and Parnassians | 126 | Sep (rising) |
| 10 | Little Wood Satyr | Megisto cymela | Brush-footed Butterflies | 117 | Apr (rising) |
| 11 | Common Buckeye | Junonia coenia | Brush-footed Butterflies | 107 | Oct (rising) |
| 12 | Falcate Orangetip | Anthocharis midea | Whites, Yellows, and Sulphurs | 92 | Mar (peak) |
| 13 | Silver-spotted Skipper | Epargyreus clarus | Skippers | 91 | Aug (rising) |
| 14 | American Lady | Vanessa virginiensis | Brush-footed Butterflies | 82 | Apr (rising) |
| 15 | Pipevine Swallowtail | Battus philenor | Swallowtails and Parnassians | 70 | Apr (rising) |
| 16 | Fiery Skipper | Hylephila phyleus | Skippers | 70 | Oct (rising) |
| 17 | Phaon Crescent | Phyciodes phaon | Brush-footed Butterflies | 69 | Oct (rising) |
| 18 | Juvenal's Duskywing | Erynnis juvenalis | Skippers | 61 | Mar (peak) |
| 19 | Eastern Gemmed-Satyr | Cyllopsis gemma | Brush-footed Butterflies | 60 | Mar (peak) |
| 20 | Cloudless Sulphur | Phoebis sennae | Whites, Yellows, and Sulphurs | 59 | Sep (rising) |
| 21 | Goatweed Leafwing | Anaea andria | Brush-footed Butterflies | 58 | Mar (peak) |
| 22 | Palamedes Swallowtail | Papilio palamedes | Swallowtails and Parnassians | 55 | Apr (rising) |
| 23 | Zebra Swallowtail | Eurytides marcellus | Swallowtails and Parnassians | 55 | May (rising) |
| 24 | American Snout | Libytheana carinenta | Brush-footed Butterflies | 50 | Apr (rising) |
| 25 | Southern Pearly-eye | Lethe portlandia | Brush-footed Butterflies | 48 | Mar (peak) |
| 26 | Gray Hairstreak | Strymon melinus | Gossamer-winged Butterflies | 39 | Oct (rising) |
| 27 | Gulf Fritillary | Dione vanillae | Brush-footed Butterflies | 38 | Oct (rising) |
| 28 | Clouded Skipper | Lerema accius | Skippers | 34 | Oct (rising) |
| 29 | Eastern Tailed-Blue | Everes comyntas | Gossamer-winged Butterflies | 31 | May (rising) |
| 30 | Viceroy | Limenitis archippus | Brush-footed Butterflies | 27 | Sep (rising) |
| 31 | Silvery Checkerspot | Chlosyne nycteis | Brush-footed Butterflies | 26 | Jul (rising) |
| 32 | Tropical Checkered-Skipper | Burnsius oileus | Skippers | 25 | Sep (rising) |
| 33 | Horace's Duskywing | Erynnis horatius | Skippers | 20 | Jul (rising) |
| 34 | Long-tailed Skipper | Urbanus proteus | Skippers | 20 | Oct (rising) |
| 35 | Orange Sulphur | Colias eurytheme | Whites, Yellows, and Sulphurs | 19 | Apr (rising) |
| 36 | Juniper Hairstreak | Callophrys gryneus | Gossamer-winged Butterflies | 17 | Mar (peak) |
| 37 | Dun Skipper | Euphyes vestris | Skippers | 16 | Aug (rising) |
| 38 | Southern Skipperling | Oarisma minima | Skippers | 14 | Aug (rising) |
| 39 | Henry's Elfin | Callophrys henrici | Gossamer-winged Butterflies | 13 | Mar (peak) |
| 40 | Eastern Pine Elfin | Callophrys niphon | Gossamer-winged Butterflies | 12 | Mar (peak) |
| 41 | Sleepy Orange | Eurema nicippe | Whites, Yellows, and Sulphurs | 12 | Sep (rising) |
| 42 | Variegated Fritillary | Euptoieta claudia | Brush-footed Butterflies | 12 | Oct (rising) |
| 43 | Black Swallowtail | Papilio polyxenes | Swallowtails and Parnassians | 10 | May (rising) |
| 44 | Least Skipper | Ancyloxypha numitor | Skippers | 8 | Jul (rising) |
| 45 | Broad-winged Skipper | Poanes viator | Skippers | 8 | Apr (rising) |
| 46 | Mourning Cloak | Nymphalis antiopa | Brush-footed Butterflies | 7 | May (rising) |
| 47 | Sleepy Duskywing | Erynnis brizo | Skippers | 7 | Mar (peak) |
| 48 | Little Metalmark | Calephelis virginiensis | Metalmark Butterflies | 7 | Oct (rising) |
| 49 | White Checkered-Skipper | Burnsius albezens | Skippers | 7 | Apr (rising) |
| 50 | Funereal Duskywing | Erynnis funeralis | Skippers | 5 | Jun (rising) |