Butterflies Flying in Oklahoma in September (60 Species)

60 butterflies were recorded flying in Oklahoma in September in our iNaturalist sample; 18 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 Nov Dec

Top butterflies in September

Monarch1,515 obs.

Gulf Fritillary1,038 obs.

Hackberry Emperor878 obs.

Huron Skipper454 obs.

Gray Hairstreak395 obs.

Pipevine Swallowtail390 obs.

Fiery Skipper350 obs.

Common Buckeye304 obs.

Variegated Fritillary282 obs.

Pearl Crescent267 obs.

Question Mark264 obs.

Viceroy251 obs.

All butterflies flying in Oklahoma in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	1,515	Sep (peak)
2	Gulf Fritillary	Dione vanillae	Brush-footed Butterflies	1,038	Sep (peak)
3	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	878	Sep (peak)
4	Huron Skipper	Atalopedes huron	Skippers	454	Aug (past peak)
5	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	395	Sep (peak)
6	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	390	Sep (peak)
7	Fiery Skipper	Hylephila phyleus	Skippers	350	Sep (peak)
8	Common Buckeye	Junonia coenia	Brush-footed Butterflies	304	Jun (past peak)
9	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	282	May (past peak)
10	Pearl Crescent	Phyciodes tharos	Brush-footed Butterflies	267	Apr (past peak)
11	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	264	Sep (peak)
12	Viceroy	Limenitis archippus	Brush-footed Butterflies	251	Sep (peak)
13	Painted Lady	Vanessa cardui	Brush-footed Butterflies	245	Oct (rising)
14	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	238	Sep (peak)
15	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	229	Aug (past peak)
16	Red-banded Hairstreak	Calycopis cecrops	Gossamer-winged Butterflies	219	Sep (peak)
17	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	209	Oct (rising)
18	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	209	Aug (past peak)
19	Tawny Emperor	Asterocampa clyton	Brush-footed Butterflies	208	Sep (peak)
20	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	195	Apr (past peak)
21	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	159	Sep (peak)
22	Eastern Giant Swallowtail	Heraclides cresphontes	Swallowtails and Parnassians	133	Sep (peak)
23	Silver-spotted Skipper	Epargyreus clarus	Skippers	124	Jul (past peak)
24	Bordered Patch	Chlosyne lacinia	Brush-footed Butterflies	116	Oct (rising)
25	Little Yellow	Eurema lisa	Whites, Yellows, and Sulphurs	97	Sep (peak)
26	Red-spotted Admiral	Limenitis arthemis	Brush-footed Butterflies	91	Sep (peak)
27	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	89	Oct (rising)
28	Goatweed Leafwing	Anaea andria	Brush-footed Butterflies	78	Apr (past peak)
29	Phaon Crescent	Phyciodes phaon	Brush-footed Butterflies	73	Oct (rising)
30	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	70	Apr (past peak)
31	Sleepy Orange	Eurema nicippe	Whites, Yellows, and Sulphurs	70	Sep (peak)
32	American Lady	Vanessa virginiensis	Brush-footed Butterflies	69	Apr (past peak)
33	Queen	Danaus gilippus	Brush-footed Butterflies	64	Aug (past peak)
34	American Snout	Libytheana carinenta	Brush-footed Butterflies	63	Jun (past peak)
35	Clouded Skipper	Lerema accius	Skippers	56	Oct (rising)
36	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	55	May (past peak)
37	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	52	May (past peak)
38	Great Purple Hairstreak	Atlides halesus	Gossamer-winged Butterflies	50	Sep (peak)
39	Spicebush Swallowtail	Papilio troilus	Swallowtails and Parnassians	49	Aug (past peak)
40	Horace's Duskywing	Erynnis horatius	Skippers	39	Jun (past peak)
41	Silvery Checkerspot	Chlosyne nycteis	Brush-footed Butterflies	37	May (past peak)
42	Common Checkered-Skipper	Burnsius communis	Skippers	36	Oct (rising)
43	Eastern Gemmed-Satyr	Cyllopsis gemma	Brush-footed Butterflies	35	Apr (past peak)
44	Eufala Skipper	Lerodea eufala	Skippers	28	Oct (rising)
45	Common Sootywing	Pholisora catullus	Skippers	25	Jul (past peak)
46	Least Skipper	Ancyloxypha numitor	Skippers	25	Sep (peak)
47	Dun Skipper	Euphyes vestris	Skippers	24	Jun (past peak)
48	Diana Fritillary	Argynnis diana	Brush-footed Butterflies	24	Jun (past peak)
49	Zabulon Skipper	Lon zabulon	Skippers	23	Jun (past peak)
50	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	19	Jun (past peak)