Butterflies Flying in Wyoming in May (49 Species)

49 butterflies were recorded flying in Wyoming in May in our iNaturalist sample; 3 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Apr May Jun Jul Aug Sep Oct

Top butterflies in May

Painted Lady82 obs.

Silvery Blue81 obs.

Green Comma61 obs.

Mourning Cloak56 obs.

Milbert's Tortoiseshell37 obs.

Western Pine Elfin35 obs.

Common Ringlet32 obs.

Anise Swallowtail29 obs.

California Tortoiseshell24 obs.

Clouded Sulphur24 obs.

Hoary Comma22 obs.

Satyr Comma22 obs.

All butterflies flying in Wyoming in May

#	Species	Scientific name	Family	Obs.	Peak in state
1	Painted Lady	Vanessa cardui	Brush-footed Butterflies	82	Jul (rising)
2	Silvery Blue	Glaucopsyche lygdamus	Gossamer-winged Butterflies	81	Jun (rising)
3	Green Comma	Polygonia faunus	Brush-footed Butterflies	61	Aug (rising)
4	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	56	Aug (rising)
5	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	37	Jul (rising)
6	Western Pine Elfin	Callophrys eryphon	Gossamer-winged Butterflies	35	Jun (rising)
7	Common Ringlet	Coenonympha california	Brush-footed Butterflies	32	Jun (rising)
8	Anise Swallowtail	Papilio zelicaon	Swallowtails and Parnassians	29	Jul (rising)
9	California Tortoiseshell	Nymphalis californica	Brush-footed Butterflies	24	Jul (rising)
10	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	24	Jul (rising)
11	Hoary Comma	Polygonia gracilis	Brush-footed Butterflies	22	Aug (rising)
12	Satyr Comma	Polygonia satyrus	Brush-footed Butterflies	22	Jun (rising)
13	Juniper Hairstreak	Callophrys gryneus	Gossamer-winged Butterflies	22	May (peak)
14	Common Checkered-Skipper	Burnsius communis	Skippers	19	Aug (rising)
15	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	17	Jun (rising)
16	Echo Azure	Celastrina echo	Gossamer-winged Butterflies	17	Jun (rising)
17	Brown Elfin	Callophrys augustinus	Gossamer-winged Butterflies	14	May (peak)
18	Rocky Mountain Parnassian	Parnassius smintheus	Swallowtails and Parnassians	11	Jul (rising)
19	Edith's Checkerspot	Euphydryas editha	Brush-footed Butterflies	8	Jul (rising)
20	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	7	Jul (rising)
21	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	6	Jul (rising)
22	Margined White	Pieris marginalis	Whites, Yellows, and Sulphurs	6	Jul (rising)
23	Western White	Pontia occidentalis	Whites, Yellows, and Sulphurs	6	Jul (rising)
24	Boisduval's Blue	Icaricia icarioides	Gossamer-winged Butterflies	6	Jul (rising)
25	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	5	Jul (rising)
26	Field Crescent	Phyciodes pulchella	Brush-footed Butterflies	5	Jul (rising)
27	Western Tiger Swallowtail	Papilio rutulus	Swallowtails and Parnassians	4	Jun (rising)
28	Pale Swallowtail	Papilio eurymedon	Swallowtails and Parnassians	4	Jun (rising)
29	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	4	Aug (rising)
30	Clodius Parnassian	Parnassius clodius	Swallowtails and Parnassians	4	Jul (rising)
31	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	4	Sep (rising)
32	Juba Skipper	Hesperia juba	Skippers	4	Jun (rising)
33	Melissa Blue	Plebejus melissa	Gossamer-winged Butterflies	4	Jul (rising)
34	Common Sootywing	Pholisora catullus	Skippers	3	Jul (rising)
35	Silver-spotted Skipper	Epargyreus clarus	Skippers	3	Jun (rising)
36	Gorgone Checkerspot	Chlosyne gorgone	Brush-footed Butterflies	3	Jun (rising)
37	West Coast Lady	Vanessa annabella	Brush-footed Butterflies	2	Aug (rising)
38	Gray Comma	Polygonia progne	Brush-footed Butterflies	2	May (peak)
39	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	2	Jul (rising)
40	Weidemeyer's Admiral	Limenitis weidemeyerii	Brush-footed Butterflies	2	Jul (rising)
41	Sagebrush Checkerspot	Chlosyne acastus	Brush-footed Butterflies	2	Jun (rising)
42	Monarch	Danaus plexippus	Brush-footed Butterflies	1	Aug (rising)
43	Dreamy Duskywing	Erynnis icelus	Skippers	1	Jun (rising)
44	Small Wood-Nymph	Cercyonis oetus	Brush-footed Butterflies	1	Jul (rising)
45	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	1	Jul (rising)
46	Becker's White	Pontia beckerii	Whites, Yellows, and Sulphurs	1	Jul (rising)
47	Greenish Blue	Icaricia saepiolus	Gossamer-winged Butterflies	1	Jun (rising)
48	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	1	Jul (rising)
49	Callippe Fritillary	Argynnis callippe	Brush-footed Butterflies	1	Jul (rising)