Butterflies Flying in Idaho in April (37 Species)

37 butterflies were recorded flying in Idaho 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

California Tortoiseshell205 obs.

Painted Lady153 obs.

Small White142 obs.

Mourning Cloak128 obs.

Satyr Comma91 obs.

Echo Azure88 obs.

Mylitta Crescent55 obs.

Gray Hairstreak49 obs.

Milbert's Tortoiseshell32 obs.

Anise Swallowtail31 obs.

Common Checkered-Skipper31 obs.

Hoary Comma30 obs.

All butterflies flying in Idaho in April

#	Species	Scientific name	Family	Obs.	Peak in state
1	California Tortoiseshell	Nymphalis californica	Brush-footed Butterflies	205	Jul (rising)
2	Painted Lady	Vanessa cardui	Brush-footed Butterflies	153	Jul (rising)
3	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	142	Jul (rising)
4	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	128	Apr (peak)
5	Satyr Comma	Polygonia satyrus	Brush-footed Butterflies	91	Apr (peak)
6	Echo Azure	Celastrina echo	Gossamer-winged Butterflies	88	May (rising)
7	Mylitta Crescent	Phyciodes mylitta	Brush-footed Butterflies	55	Sep (rising)
8	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	49	Jul (rising)
9	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	32	Jun (rising)
10	Anise Swallowtail	Papilio zelicaon	Swallowtails and Parnassians	31	Jun (rising)
11	Common Checkered-Skipper	Burnsius communis	Skippers	31	Sep (rising)
12	Hoary Comma	Polygonia gracilis	Brush-footed Butterflies	30	Aug (rising)
13	Juba Skipper	Hesperia juba	Skippers	26	May (rising)
14	Brown Elfin	Callophrys augustinus	Gossamer-winged Butterflies	24	May (rising)
15	Silvery Blue	Glaucopsyche lygdamus	Gossamer-winged Butterflies	19	Jun (rising)
16	Common Ringlet	Coenonympha california	Brush-footed Butterflies	17	Jun (rising)
17	West Coast Lady	Vanessa annabella	Brush-footed Butterflies	16	May (rising)
18	Green Comma	Polygonia faunus	Brush-footed Butterflies	14	Aug (rising)
19	Becker's White	Pontia beckerii	Whites, Yellows, and Sulphurs	14	Jul (rising)
20	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	12	Jul (rising)
21	Common Sootywing	Pholisora catullus	Skippers	7	May (rising)
22	Western Pine Elfin	Callophrys eryphon	Gossamer-winged Butterflies	7	May (rising)
23	Western Pygmy-Blue	Brephidium exilis	Gossamer-winged Butterflies	5	Sep (rising)
24	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	4	Sep (rising)
25	Western White	Pontia occidentalis	Whites, Yellows, and Sulphurs	4	Jul (rising)
26	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	3	Sep (rising)
27	Margined White	Pieris marginalis	Whites, Yellows, and Sulphurs	3	Aug (rising)
28	Boisduval's Blue	Icaricia icarioides	Gossamer-winged Butterflies	3	Jun (rising)
29	Lorquin's Admiral	Limenitis lorquini	Brush-footed Butterflies	2	Jul (rising)
30	Pale Swallowtail	Papilio eurymedon	Swallowtails and Parnassians	2	Jun (rising)
31	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	2	Jul (rising)
32	Sagebrush Checkerspot	Chlosyne acastus	Brush-footed Butterflies	2	May (rising)
33	Lupine Blue	Icaricia lupini	Gossamer-winged Butterflies	2	Jun (rising)
34	Western Tiger Swallowtail	Papilio rutulus	Swallowtails and Parnassians	1	Jun (rising)
35	Edith's Checkerspot	Euphydryas editha	Brush-footed Butterflies	1	Jul (rising)
36	Acmon Blue	Icaricia acmon	Gossamer-winged Butterflies	1	Jun (rising)
37	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	1	Sep (rising)