Butterflies Flying in Oregon in April (55 Species)

55 butterflies were recorded flying in Oregon in April in our iNaturalist sample; 2 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 April

Painted Lady526 obs.

Echo Azure513 obs.

California Tortoiseshell424 obs.

Silvery Blue307 obs.

Mylitta Crescent231 obs.

Propertius Duskywing202 obs.

Small White187 obs.

Anise Swallowtail157 obs.

Mourning Cloak155 obs.

Margined White144 obs.

Gray Hairstreak125 obs.

Western Pine Elfin118 obs.

All butterflies flying in Oregon in April

#	Species	Scientific name	Family	Obs.	Peak in state
1	Painted Lady	Vanessa cardui	Brush-footed Butterflies	526	Jul (rising)
2	Echo Azure	Celastrina echo	Gossamer-winged Butterflies	513	Apr (peak)
3	California Tortoiseshell	Nymphalis californica	Brush-footed Butterflies	424	Jul (rising)
4	Silvery Blue	Glaucopsyche lygdamus	Gossamer-winged Butterflies	307	May (rising)
5	Mylitta Crescent	Phyciodes mylitta	Brush-footed Butterflies	231	Jul (rising)
6	Propertius Duskywing	Erynnis propertius	Skippers	202	May (rising)
7	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	187	Jul (rising)
8	Anise Swallowtail	Papilio zelicaon	Swallowtails and Parnassians	157	May (rising)
9	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	155	Apr (peak)
10	Margined White	Pieris marginalis	Whites, Yellows, and Sulphurs	144	Jul (rising)
11	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	125	Jul (rising)
12	Western Pine Elfin	Callophrys eryphon	Gossamer-winged Butterflies	118	May (rising)
13	West Coast Lady	Vanessa annabella	Brush-footed Butterflies	106	May (rising)
14	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	89	Jul (rising)
15	Brown Elfin	Callophrys augustinus	Gossamer-winged Butterflies	86	May (rising)
16	Common Ringlet	Coenonympha california	Brush-footed Butterflies	74	May (rising)
17	Green Comma	Polygonia faunus	Brush-footed Butterflies	63	Aug (rising)
18	Hoary Comma	Polygonia gracilis	Brush-footed Butterflies	57	Jul (rising)
19	Satyr Comma	Polygonia satyrus	Brush-footed Butterflies	53	Jul (rising)
20	Common Checkered-Skipper	Burnsius communis	Skippers	46	Jul (rising)
21	Becker's White	Pontia beckerii	Whites, Yellows, and Sulphurs	35	Jul (rising)
22	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	34	Jul (rising)
23	Juniper Hairstreak	Callophrys gryneus	Gossamer-winged Butterflies	24	Jun (rising)
24	Pale Swallowtail	Papilio eurymedon	Swallowtails and Parnassians	23	Jun (rising)
25	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	21	Jul (rising)
26	Acmon Blue	Icaricia acmon	Gossamer-winged Butterflies	18	Aug (rising)
27	Edith's Checkerspot	Euphydryas editha	Brush-footed Butterflies	16	Jul (rising)
28	Western Tailed-blue	Everes amyntula	Gossamer-winged Butterflies	15	Jun (rising)
29	Juba Skipper	Hesperia juba	Skippers	15	May (rising)
30	Lotus Hairstreak	Callophrys dumetorum	Gossamer-winged Butterflies	14	May (rising)
31	Western White	Pontia occidentalis	Whites, Yellows, and Sulphurs	13	Jul (rising)
32	Sara Orangetip	Anthocharis sara	Whites, Yellows, and Sulphurs	12	Mar (past peak)
33	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	12	Jul (rising)
34	American Lady	Vanessa virginiensis	Brush-footed Butterflies	10	Aug (rising)
35	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	9	Jul (rising)
36	Western Tiger Swallowtail	Papilio rutulus	Swallowtails and Parnassians	8	Jul (rising)
37	Boisduval's Blue	Icaricia icarioides	Gossamer-winged Butterflies	8	Jul (rising)
38	Variable Checkerspot	Euphydryas chalcedona	Brush-footed Butterflies	5	Jun (rising)
39	Lupine Blue	Icaricia lupini	Gossamer-winged Butterflies	5	Jul (rising)
40	Lorquin's Admiral	Limenitis lorquini	Brush-footed Butterflies	4	Jun (rising)
41	Pacific Fritillary	Boloria epithore	Brush-footed Butterflies	3	Jun (rising)
42	Field Crescent	Phyciodes pulchella	Brush-footed Butterflies	3	Jul (rising)
43	Dreamy Duskywing	Erynnis icelus	Skippers	2	Jun (rising)
44	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	2	Sep (rising)
45	Great Purple Hairstreak	Atlides halesus	Gossamer-winged Butterflies	2	Aug (rising)
46	Silver-spotted Skipper	Epargyreus clarus	Skippers	2	Jun (rising)
47	Snowberry Checkerspot	Euphydryas colon	Brush-footed Butterflies	2	Jul (rising)
48	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	2	Jun (rising)
49	Northern Checkerspot	Chlosyne palla	Brush-footed Butterflies	1	Jun (rising)
50	Common Sootywing	Pholisora catullus	Skippers	1	May (rising)