Butterflies Flying in Nebraska in September (60 Species)

60 butterflies were recorded flying in Nebraska in September in our iNaturalist sample; 12 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 September

Monarch868 obs.

Painted Lady375 obs.

Silver-spotted Skipper178 obs.

Black Swallowtail162 obs.

Orange Sulphur162 obs.

Huron Skipper132 obs.

Common Buckeye129 obs.

Small White127 obs.

Pearl Crescent118 obs.

Fiery Skipper99 obs.

Gray Hairstreak86 obs.

Variegated Fritillary81 obs.

All butterflies flying in Nebraska in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	868	Aug (past peak)
2	Painted Lady	Vanessa cardui	Brush-footed Butterflies	375	Sep (peak)
3	Silver-spotted Skipper	Epargyreus clarus	Skippers	178	Aug (past peak)
4	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	162	Jul (past peak)
5	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	162	Sep (peak)
6	Huron Skipper	Atalopedes huron	Skippers	132	Aug (past peak)
7	Common Buckeye	Junonia coenia	Brush-footed Butterflies	129	Aug (past peak)
8	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	127	Jul (past peak)
9	Pearl Crescent	Phyciodes tharos	Brush-footed Butterflies	118	Aug (past peak)
10	Fiery Skipper	Hylephila phyleus	Skippers	99	Sep (peak)
11	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	86	Aug (past peak)
12	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	81	Jul (past peak)
13	Viceroy	Limenitis archippus	Brush-footed Butterflies	79	Sep (peak)
14	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	77	Jun (past peak)
15	Eastern Comma	Polygonia comma	Brush-footed Butterflies	74	Jul (past peak)
16	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	73	Aug (past peak)
17	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	72	Aug (past peak)
18	Peck's Skipper	Polites peckius	Skippers	60	Sep (peak)
19	Common Checkered-Skipper	Burnsius communis	Skippers	55	Jun (past peak)
20	Melissa Blue	Plebejus melissa	Gossamer-winged Butterflies	53	Jun (past peak)
21	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	49	Jun (past peak)
22	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	45	Sep (peak)
23	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	27	Sep (peak)
24	American Lady	Vanessa virginiensis	Brush-footed Butterflies	26	Apr (past peak)
25	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	24	Jun (past peak)
26	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	23	Jun (past peak)
27	Tawny-edged Skipper	Polites themistocles	Skippers	20	Aug (past peak)
28	Red-spotted Admiral	Limenitis arthemis	Brush-footed Butterflies	20	Jul (past peak)
29	Eastern Giant Swallowtail	Heraclides cresphontes	Swallowtails and Parnassians	20	Aug (past peak)
30	Mylitta Crescent	Phyciodes mylitta	Brush-footed Butterflies	15	Sep (peak)
31	American Snout	Libytheana carinenta	Brush-footed Butterflies	14	Jul (past peak)
32	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	14	Jul (past peak)
33	Purplish Copper	Tharsalea helloides	Gossamer-winged Butterflies	13	Sep (peak)
34	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	12	Jul (past peak)
35	Northern Pearly-eye	Lethe anthedon	Brush-footed Butterflies	12	Jun (past peak)
36	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	11	May (past peak)
37	Gorgone Checkerspot	Chlosyne gorgone	Brush-footed Butterflies	11	Jul (past peak)
38	Least Skipper	Ancyloxypha numitor	Skippers	10	Aug (past peak)
39	Wild Indigo Duskywing	Erynnis baptisiae	Skippers	9	Jul (past peak)
40	Marine Blue	Leptotes marina	Gossamer-winged Butterflies	9	Sep (peak)
41	Bordered Patch	Chlosyne lacinia	Brush-footed Butterflies	9	Sep (peak)
42	American Branded Skipper	Hesperia colorado	Skippers	8	Aug (past peak)
43	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	7	Sep (peak)
44	Summer Azure	Celastrina neglecta	Gossamer-winged Butterflies	6	Jun (past peak)
45	Gray Comma	Polygonia progne	Brush-footed Butterflies	5	Jul (past peak)
46	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	5	Jun (past peak)
47	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	4	Jun (past peak)
48	Common Sootywing	Pholisora catullus	Skippers	3	Jul (past peak)
49	Little Yellow	Eurema lisa	Whites, Yellows, and Sulphurs	3	Jul (past peak)
50	Silvery Checkerspot	Chlosyne nycteis	Brush-footed Butterflies	3	Jun (past peak)