Butterflies Flying in Wyoming in August (60 Species)

60 butterflies were recorded flying in Wyoming in August in our iNaturalist sample; 13 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 August

Mormon Fritillary336 obs.

Rocky Mountain Parnassian144 obs.

Blue Copper128 obs.

Green Comma118 obs.

Essex Skipper117 obs.

Small Wood-Nymph115 obs.

Weidemeyer's Admiral98 obs.

Milbert's Tortoiseshell89 obs.

Woodland Skipper82 obs.

Painted Lady75 obs.

American Branded Skipper67 obs.

Mourning Cloak60 obs.

All butterflies flying in Wyoming in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Mormon Fritillary	Argynnis mormonia	Brush-footed Butterflies	336	Jul (past peak)
2	Rocky Mountain Parnassian	Parnassius smintheus	Swallowtails and Parnassians	144	Jul (past peak)
3	Blue Copper	Tharsalea heteronea	Gossamer-winged Butterflies	128	Jul (past peak)
4	Green Comma	Polygonia faunus	Brush-footed Butterflies	118	Aug (peak)
5	Essex Skipper	Thymelicus lineola	Skippers	117	Jul (past peak)
6	Small Wood-Nymph	Cercyonis oetus	Brush-footed Butterflies	115	Jul (past peak)
7	Weidemeyer's Admiral	Limenitis weidemeyerii	Brush-footed Butterflies	98	Jul (past peak)
8	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	89	Jul (past peak)
9	Woodland Skipper	Ochlodes sylvanoides	Skippers	82	Aug (peak)
10	Painted Lady	Vanessa cardui	Brush-footed Butterflies	75	Jul (past peak)
11	American Branded Skipper	Hesperia colorado	Skippers	67	Aug (peak)
12	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	60	Aug (peak)
13	California Tortoiseshell	Nymphalis californica	Brush-footed Butterflies	56	Jul (past peak)
14	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	52	Jul (past peak)
15	Monarch	Danaus plexippus	Brush-footed Butterflies	50	Aug (peak)
16	Hoary Comma	Polygonia gracilis	Brush-footed Butterflies	43	Aug (peak)
17	Pine White	Neophasia menapia	Whites, Yellows, and Sulphurs	41	Aug (peak)
18	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	40	Jul (past peak)
19	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	39	Jul (past peak)
20	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	37	Jul (past peak)
21	Melissa Blue	Plebejus melissa	Gossamer-winged Butterflies	35	Jul (past peak)
22	Satyr Comma	Polygonia satyrus	Brush-footed Butterflies	33	Jun (past peak)
23	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	31	Jul (past peak)
24	Callippe Fritillary	Argynnis callippe	Brush-footed Butterflies	26	Jul (past peak)
25	Common Checkered-Skipper	Burnsius communis	Skippers	25	Aug (peak)
26	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	24	Aug (peak)
27	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	23	Sep (rising)
28	Field Crescent	Phyciodes pulchella	Brush-footed Butterflies	21	Jul (past peak)
29	Boisduval's Blue	Icaricia icarioides	Gossamer-winged Butterflies	20	Jul (past peak)
30	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	19	Jul (past peak)
31	Anise Swallowtail	Papilio zelicaon	Swallowtails and Parnassians	18	Jul (past peak)
32	Western White	Pontia occidentalis	Whites, Yellows, and Sulphurs	17	Jul (past peak)
33	Hydaspe Fritillary	Argynnis hydaspe	Brush-footed Butterflies	17	Jul (past peak)
34	Margined White	Pieris marginalis	Whites, Yellows, and Sulphurs	16	Jul (past peak)
35	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	15	Jun (past peak)
36	Aphrodite Fritillary	Argynnis aphrodite	Brush-footed Butterflies	15	Jul (past peak)
37	Clodius Parnassian	Parnassius clodius	Swallowtails and Parnassians	14	Jul (past peak)
38	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	12	Jul (past peak)
39	Viceroy	Limenitis archippus	Brush-footed Butterflies	11	Aug (peak)
40	Greenish Blue	Icaricia saepiolus	Gossamer-winged Butterflies	9	Jun (past peak)
41	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	8	Aug (peak)
42	Coral Hairstreak	Satyrium titus	Gossamer-winged Butterflies	8	Jul (past peak)
43	Coronis Fritillary	Argynnis coronis	Brush-footed Butterflies	8	Jul (past peak)
44	American Lady	Vanessa virginiensis	Brush-footed Butterflies	7	Sep (rising)
45	West Coast Lady	Vanessa annabella	Brush-footed Butterflies	7	Aug (peak)
46	Hedgerow Hairstreak	Satyrium saepium	Gossamer-winged Butterflies	6	Jul (past peak)
47	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	4	Aug (peak)
48	Juba Skipper	Hesperia juba	Skippers	4	Jun (past peak)
49	Peck's Skipper	Polites peckius	Skippers	4	Jul (past peak)
50	Western Tiger Swallowtail	Papilio rutulus	Swallowtails and Parnassians	3	Jun (past peak)