Butterflies Flying in Utah in August (60 Species)

60 butterflies were recorded flying in Utah in August in our iNaturalist sample; 9 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Mar Apr May Jun Jul Aug Sep Oct Nov

Top butterflies in August

Monarch457 obs.

Woodland Skipper201 obs.

Weidemeyer's Admiral169 obs.

Two-tailed Swallowtail165 obs.

Small White126 obs.

Sandhill Skipper126 obs.

Painted Lady122 obs.

Great Spangled Fritillary101 obs.

Gray Hairstreak100 obs.

Western Pygmy-Blue76 obs.

Mormon Fritillary72 obs.

Common Checkered-Skipper66 obs.

All butterflies flying in Utah in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	457	Aug (peak)
2	Woodland Skipper	Ochlodes sylvanoides	Skippers	201	Aug (peak)
3	Weidemeyer's Admiral	Limenitis weidemeyerii	Brush-footed Butterflies	169	Jul (past peak)
4	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	165	Jun (past peak)
5	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	126	Jun (past peak)
6	Sandhill Skipper	Polites sabuleti	Skippers	126	Aug (peak)
7	Painted Lady	Vanessa cardui	Brush-footed Butterflies	122	Apr (past peak)
8	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	101	Aug (peak)
9	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	100	Jul (past peak)
10	Western Pygmy-Blue	Brephidium exilis	Gossamer-winged Butterflies	76	Oct (rising)
11	Mormon Fritillary	Argynnis mormonia	Brush-footed Butterflies	72	Jul (past peak)
12	Common Checkered-Skipper	Burnsius communis	Skippers	66	Jul (past peak)
13	Arizona Sister	Adelpha eulalia	Brush-footed Butterflies	65	Sep (rising)
14	Blue Copper	Tharsalea heteronea	Gossamer-winged Butterflies	61	Jul (past peak)
15	Small Wood-Nymph	Cercyonis oetus	Brush-footed Butterflies	60	Jul (past peak)
16	California Tortoiseshell	Nymphalis californica	Brush-footed Butterflies	54	Jul (past peak)
17	Melissa Blue	Plebejus melissa	Gossamer-winged Butterflies	53	Jun (past peak)
18	Field Crescent	Phyciodes pulchella	Brush-footed Butterflies	48	May (past peak)
19	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	46	Jul (past peak)
20	Hoary Comma	Polygonia gracilis	Brush-footed Butterflies	37	Sep (rising)
21	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	37	Jun (past peak)
22	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	33	Jul (past peak)
23	West Coast Lady	Vanessa annabella	Brush-footed Butterflies	32	May (past peak)
24	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	30	Apr (past peak)
25	Mylitta Crescent	Phyciodes mylitta	Brush-footed Butterflies	30	Jun (past peak)
26	American Branded Skipper	Hesperia colorado	Skippers	27	Aug (peak)
27	Gray Buckeye	Junonia grisea	Brush-footed Butterflies	27	Oct (rising)
28	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	25	Oct (rising)
29	Viceroy	Limenitis archippus	Brush-footed Butterflies	24	Aug (peak)
30	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	23	May (past peak)
31	Western Tiger Swallowtail	Papilio rutulus	Swallowtails and Parnassians	21	Jun (past peak)
32	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	21	Sep (rising)
33	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	21	Aug (peak)
34	Boisduval's Blue	Icaricia icarioides	Gossamer-winged Butterflies	20	Jun (past peak)
35	Margined White	Pieris marginalis	Whites, Yellows, and Sulphurs	17	Jul (past peak)
36	Anise Swallowtail	Papilio zelicaon	Swallowtails and Parnassians	16	May (past peak)
37	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	15	Jun (past peak)
38	Taxiles Skipper	Lon taxiles	Skippers	15	Jul (past peak)
39	Coronis Fritillary	Argynnis coronis	Brush-footed Butterflies	15	Sep (rising)
40	Satyr Comma	Polygonia satyrus	Brush-footed Butterflies	13	Jun (past peak)
41	Marine Blue	Leptotes marina	Gossamer-winged Butterflies	12	Jul (past peak)
42	Rocky Mountain Parnassian	Parnassius smintheus	Swallowtails and Parnassians	11	Jul (past peak)
43	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	11	Jul (past peak)
44	Juba Skipper	Hesperia juba	Skippers	9	May (past peak)
45	Lupine Blue	Icaricia lupini	Gossamer-winged Butterflies	8	Jul (past peak)
46	Callippe Fritillary	Argynnis callippe	Brush-footed Butterflies	8	Jun (past peak)
47	Tawny-edged Skipper	Polites themistocles	Skippers	7	Aug (peak)
48	Hedgerow Hairstreak	Satyrium saepium	Gossamer-winged Butterflies	7	Jul (past peak)
49	Clodius Parnassian	Parnassius clodius	Swallowtails and Parnassians	7	Jul (past peak)
50	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	7	Aug (peak)