Butterflies Flying in Kansas in September (60 Species)

60 butterflies were recorded flying in Kansas 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

Top butterflies in September

Monarch1,000 obs.

Painted Lady371 obs.

Gray Hairstreak359 obs.

Common Buckeye355 obs.

Silver-spotted Skipper354 obs.

Viceroy242 obs.

Huron Skipper219 obs.

Pearl Crescent206 obs.

Black Swallowtail206 obs.

Eastern Tailed-Blue197 obs.

Hackberry Emperor164 obs.

Fiery Skipper156 obs.

All butterflies flying in Kansas in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	1,000	Sep (peak)
2	Painted Lady	Vanessa cardui	Brush-footed Butterflies	371	Sep (peak)
3	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	359	Sep (peak)
4	Common Buckeye	Junonia coenia	Brush-footed Butterflies	355	Sep (peak)
5	Silver-spotted Skipper	Epargyreus clarus	Skippers	354	Sep (peak)
6	Viceroy	Limenitis archippus	Brush-footed Butterflies	242	Sep (peak)
7	Huron Skipper	Atalopedes huron	Skippers	219	Aug (past peak)
8	Pearl Crescent	Phyciodes tharos	Brush-footed Butterflies	206	Sep (peak)
9	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	206	Aug (past peak)
10	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	197	Jun (past peak)
11	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	164	Jun (past peak)
12	Fiery Skipper	Hylephila phyleus	Skippers	156	Sep (peak)
13	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	123	Oct (rising)
14	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	123	Aug (past peak)
15	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	119	Sep (peak)
16	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	115	Jun (past peak)
17	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	112	Jul (past peak)
18	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	110	Jun (past peak)
19	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	107	Sep (peak)
20	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	106	Jun (past peak)
21	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	98	Apr (past peak)
22	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	86	Sep (peak)
23	Common Checkered-Skipper	Burnsius communis	Skippers	76	Oct (rising)
24	Tawny Emperor	Asterocampa clyton	Brush-footed Butterflies	73	Aug (past peak)
25	Gulf Fritillary	Dione vanillae	Brush-footed Butterflies	61	Aug (past peak)
26	Eastern Giant Swallowtail	Heraclides cresphontes	Swallowtails and Parnassians	56	Jul (past peak)
27	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	46	Aug (past peak)
28	American Lady	Vanessa virginiensis	Brush-footed Butterflies	43	Apr (past peak)
29	Peck's Skipper	Polites peckius	Skippers	42	Sep (peak)
30	Red-banded Hairstreak	Calycopis cecrops	Gossamer-winged Butterflies	40	Sep (peak)
31	American Snout	Libytheana carinenta	Brush-footed Butterflies	39	Jul (past peak)
32	Little Yellow	Eurema lisa	Whites, Yellows, and Sulphurs	37	Sep (peak)
33	Red-spotted Admiral	Limenitis arthemis	Brush-footed Butterflies	36	Aug (past peak)
34	Eastern Comma	Polygonia comma	Brush-footed Butterflies	35	Sep (peak)
35	Goatweed Leafwing	Anaea andria	Brush-footed Butterflies	34	Apr (past peak)
36	Tawny-edged Skipper	Polites themistocles	Skippers	28	Aug (past peak)
37	Wild Indigo Duskywing	Erynnis baptisiae	Skippers	27	Jul (past peak)
38	Common Sootywing	Pholisora catullus	Skippers	23	Aug (past peak)
39	Bordered Patch	Chlosyne lacinia	Brush-footed Butterflies	21	Oct (rising)
40	Sleepy Orange	Eurema nicippe	Whites, Yellows, and Sulphurs	19	Aug (past peak)
41	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	18	Oct (rising)
42	Summer Azure	Celastrina neglecta	Gossamer-winged Butterflies	18	Jul (past peak)
43	Marine Blue	Leptotes marina	Gossamer-winged Butterflies	15	Jul (past peak)
44	Silvery Checkerspot	Chlosyne nycteis	Brush-footed Butterflies	15	Jul (past peak)
45	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	13	Jun (past peak)
46	Western Pygmy-Blue	Brephidium exilis	Gossamer-winged Butterflies	12	Sep (peak)
47	Queen	Danaus gilippus	Brush-footed Butterflies	11	Sep (peak)
48	Delaware Skipper	Anatrytone logan	Skippers	11	Aug (past peak)
49	Melissa Blue	Plebejus melissa	Gossamer-winged Butterflies	11	Sep (peak)
50	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	10	Jun (past peak)