Butterflies Flying in Oregon in August (60 Species)

60 butterflies were recorded flying in Oregon in August in our iNaturalist sample; 8 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

Top butterflies in August

Woodland Skipper1,814 obs.

California Tortoiseshell964 obs.

Gray Hairstreak631 obs.

Lorquin's Admiral418 obs.

Mylitta Crescent355 obs.

Small White339 obs.

Common Wood-Nymph321 obs.

Hydaspe Fritillary319 obs.

Pine White304 obs.

Painted Lady237 obs.

Anise Swallowtail178 obs.

Hoary Comma173 obs.

All butterflies flying in Oregon in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Woodland Skipper	Ochlodes sylvanoides	Skippers	1,814	Aug (peak)
2	California Tortoiseshell	Nymphalis californica	Brush-footed Butterflies	964	Jul (past peak)
3	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	631	Jul (past peak)
4	Lorquin's Admiral	Limenitis lorquini	Brush-footed Butterflies	418	Jun (past peak)
5	Mylitta Crescent	Phyciodes mylitta	Brush-footed Butterflies	355	Jul (past peak)
6	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	339	Jul (past peak)
7	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	321	Jul (past peak)
8	Hydaspe Fritillary	Argynnis hydaspe	Brush-footed Butterflies	319	Jul (past peak)
9	Pine White	Neophasia menapia	Whites, Yellows, and Sulphurs	304	Aug (peak)
10	Painted Lady	Vanessa cardui	Brush-footed Butterflies	237	Jul (past peak)
11	Anise Swallowtail	Papilio zelicaon	Swallowtails and Parnassians	178	May (past peak)
12	Hoary Comma	Polygonia gracilis	Brush-footed Butterflies	173	Jul (past peak)
13	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	173	Jul (past peak)
14	Western Tiger Swallowtail	Papilio rutulus	Swallowtails and Parnassians	172	Jul (past peak)
15	California Sister	Adelpha californica	Brush-footed Butterflies	168	Sep (rising)
16	Western White	Pontia occidentalis	Whites, Yellows, and Sulphurs	159	Jul (past peak)
17	American Branded Skipper	Hesperia colorado	Skippers	151	Jul (past peak)
18	Anna's Blue	Plebejus anna	Gossamer-winged Butterflies	149	Jul (past peak)
19	Monarch	Danaus plexippus	Brush-footed Butterflies	147	Jun (past peak)
20	American Lady	Vanessa virginiensis	Brush-footed Butterflies	126	Aug (peak)
21	Clodius Parnassian	Parnassius clodius	Swallowtails and Parnassians	121	Jul (past peak)
22	Mormon Fritillary	Argynnis mormonia	Brush-footed Butterflies	117	Aug (peak)
23	Common Ringlet	Coenonympha california	Brush-footed Butterflies	114	May (past peak)
24	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	114	Aug (peak)
25	Common Checkered-Skipper	Burnsius communis	Skippers	94	Jul (past peak)
26	Hedgerow Hairstreak	Satyrium saepium	Gossamer-winged Butterflies	84	Jul (past peak)
27	Green Comma	Polygonia faunus	Brush-footed Butterflies	82	Aug (peak)
28	Field Skipper	Atalopedes campestris	Skippers	81	Sep (rising)
29	Margined White	Pieris marginalis	Whites, Yellows, and Sulphurs	73	Jul (past peak)
30	Sandhill Skipper	Polites sabuleti	Skippers	71	Aug (peak)
31	Blue Copper	Tharsalea heteronea	Gossamer-winged Butterflies	70	Jul (past peak)
32	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	69	Jul (past peak)
33	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	68	Jul (past peak)
34	Acmon Blue	Icaricia acmon	Gossamer-winged Butterflies	67	Aug (peak)
35	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	63	Jul (past peak)
36	West Coast Lady	Vanessa annabella	Brush-footed Butterflies	54	May (past peak)
37	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	54	Jun (past peak)
38	Small Wood-Nymph	Cercyonis oetus	Brush-footed Butterflies	51	Jul (past peak)
39	Juba Skipper	Hesperia juba	Skippers	49	May (past peak)
40	Boisduval's Blue	Icaricia icarioides	Gossamer-winged Butterflies	47	Jul (past peak)
41	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	46	Jul (past peak)
42	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	44	Apr (past peak)
43	Becker's White	Pontia beckerii	Whites, Yellows, and Sulphurs	42	Jul (past peak)
44	Field Crescent	Phyciodes pulchella	Brush-footed Butterflies	39	Jul (past peak)
45	Gray Buckeye	Junonia grisea	Brush-footed Butterflies	31	Sep (rising)
46	Satyr Comma	Polygonia satyrus	Brush-footed Butterflies	30	Jul (past peak)
47	Pale Swallowtail	Papilio eurymedon	Swallowtails and Parnassians	27	Jun (past peak)
48	Lupine Blue	Icaricia lupini	Gossamer-winged Butterflies	25	Jul (past peak)
49	Edith's Checkerspot	Euphydryas editha	Brush-footed Butterflies	24	Jul (past peak)
50	Snowberry Checkerspot	Euphydryas colon	Brush-footed Butterflies	23	Jul (past peak)