Butterflies Flying in Nevada in September (60 Species)

60 butterflies were recorded flying in Nevada in September 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.

Feb Mar Apr May Jun Jul Aug Sep Oct Nov

Top butterflies in September

Monarch249 obs.

Western Pygmy-Blue113 obs.

Painted Lady96 obs.

Fiery Skipper49 obs.

Queen47 obs.

Gray Hairstreak46 obs.

Arizona Sister46 obs.

Small White45 obs.

California Tortoiseshell34 obs.

California Patch31 obs.

Sleepy Orange23 obs.

Gray Buckeye23 obs.

All butterflies flying in Nevada in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	249	Sep (peak)
2	Western Pygmy-Blue	Brephidium exilis	Gossamer-winged Butterflies	113	Oct (rising)
3	Painted Lady	Vanessa cardui	Brush-footed Butterflies	96	Apr (past peak)
4	Fiery Skipper	Hylephila phyleus	Skippers	49	Sep (peak)
5	Queen	Danaus gilippus	Brush-footed Butterflies	47	Jun (past peak)
6	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	46	Jul (past peak)
7	Arizona Sister	Adelpha eulalia	Brush-footed Butterflies	46	Sep (peak)
8	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	45	Jun (past peak)
9	California Tortoiseshell	Nymphalis californica	Brush-footed Butterflies	34	Jul (past peak)
10	California Patch	Chlosyne californica	Brush-footed Butterflies	31	Sep (peak)
11	Sleepy Orange	Eurema nicippe	Whites, Yellows, and Sulphurs	23	Sep (peak)
12	Gray Buckeye	Junonia grisea	Brush-footed Butterflies	23	Oct (rising)
13	Mylitta Crescent	Phyciodes mylitta	Brush-footed Butterflies	22	Jul (past peak)
14	Woodland Skipper	Ochlodes sylvanoides	Skippers	21	Aug (past peak)
15	Northern White-Skipper	Heliopetes ericetorum	Skippers	20	May (past peak)
16	Hoary Comma	Polygonia gracilis	Brush-footed Butterflies	19	Jul (past peak)
17	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	19	Jul (past peak)
18	Juba Skipper	Hesperia juba	Skippers	16	May (past peak)
19	West Coast Lady	Vanessa annabella	Brush-footed Butterflies	15	Oct (rising)
20	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	15	Oct (rising)
21	Field Skipper	Atalopedes campestris	Skippers	14	Jul (past peak)
22	Lorquin's Admiral	Limenitis lorquini	Brush-footed Butterflies	13	Jun (past peak)
23	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	13	Apr (past peak)
24	Common Checkered-Skipper	Burnsius communis	Skippers	13	Jul (past peak)
25	Common Ringlet	Coenonympha california	Brush-footed Butterflies	12	Jun (past peak)
26	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	11	Apr (past peak)
27	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	11	Jul (past peak)
28	Western Tiger Swallowtail	Papilio rutulus	Swallowtails and Parnassians	9	Jun (past peak)
29	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	9	Apr (past peak)
30	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	9	Sep (peak)
31	American Snout	Libytheana carinenta	Brush-footed Butterflies	9	Oct (rising)
32	California Sister	Adelpha californica	Brush-footed Butterflies	9	Sep (peak)
33	Melissa Blue	Plebejus melissa	Gossamer-winged Butterflies	9	Jun (past peak)
34	Ceraunus Blue	Hemiargus ceraunus	Gossamer-winged Butterflies	8	Jun (past peak)
35	Echo Azure	Celastrina echo	Gossamer-winged Butterflies	7	Jun (past peak)
36	Great Purple Hairstreak	Atlides halesus	Gossamer-winged Butterflies	7	Jun (past peak)
37	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	6	Sep (peak)
38	Marine Blue	Leptotes marina	Gossamer-winged Butterflies	6	May (past peak)
39	Orange Skipperling	Oarisma aurantiaca	Skippers	6	Apr (past peak)
40	American Lady	Vanessa virginiensis	Brush-footed Butterflies	5	Jul (past peak)
41	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	5	Sep (peak)
42	Hedgerow Hairstreak	Satyrium saepium	Gossamer-winged Butterflies	5	Jul (past peak)
43	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	4	Oct (rising)
44	Sandhill Skipper	Polites sabuleti	Skippers	4	Jun (past peak)
45	Weidemeyer's Admiral	Limenitis weidemeyerii	Brush-footed Butterflies	4	Jul (past peak)
46	Becker's White	Pontia beckerii	Whites, Yellows, and Sulphurs	4	Jul (past peak)
47	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	3	Jun (past peak)
48	Pine White	Neophasia menapia	Whites, Yellows, and Sulphurs	3	Aug (past peak)
49	Field Crescent	Phyciodes pulchella	Brush-footed Butterflies	3	May (past peak)
50	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	3	May (past peak)