Butterflies Flying in Missouri in September (60 Species)

60 butterflies were recorded flying in Missouri in September in our iNaturalist sample; 22 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

Monarch2,362 obs.

Common Buckeye1,088 obs.

Painted Lady849 obs.

Silver-spotted Skipper813 obs.

Huron Skipper635 obs.

Pearl Crescent568 obs.

Eastern Tailed-Blue551 obs.

Hackberry Emperor546 obs.

Black Swallowtail541 obs.

Fiery Skipper526 obs.

Great Spangled Fritillary509 obs.

Gray Hairstreak468 obs.

All butterflies flying in Missouri in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	2,362	Sep (peak)
2	Common Buckeye	Junonia coenia	Brush-footed Butterflies	1,088	Sep (peak)
3	Painted Lady	Vanessa cardui	Brush-footed Butterflies	849	Sep (peak)
4	Silver-spotted Skipper	Epargyreus clarus	Skippers	813	Sep (peak)
5	Huron Skipper	Atalopedes huron	Skippers	635	Sep (peak)
6	Pearl Crescent	Phyciodes tharos	Brush-footed Butterflies	568	Sep (peak)
7	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	551	Sep (peak)
8	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	546	Aug (past peak)
9	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	541	Sep (peak)
10	Fiery Skipper	Hylephila phyleus	Skippers	526	Sep (peak)
11	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	509	Jun (past peak)
12	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	468	Sep (peak)
13	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	457	Sep (peak)
14	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	413	Aug (past peak)
15	Viceroy	Limenitis archippus	Brush-footed Butterflies	407	Sep (peak)
16	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	386	Jul (past peak)
17	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	266	Sep (peak)
18	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	259	Sep (peak)
19	Spicebush Swallowtail	Papilio troilus	Swallowtails and Parnassians	241	Aug (past peak)
20	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	230	Aug (past peak)
21	Eastern Comma	Polygonia comma	Brush-footed Butterflies	192	Sep (peak)
22	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	172	Oct (rising)
23	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	170	Apr (past peak)
24	Red-spotted Admiral	Limenitis arthemis	Brush-footed Butterflies	150	Aug (past peak)
25	Little Yellow	Eurema lisa	Whites, Yellows, and Sulphurs	127	Aug (past peak)
26	Peck's Skipper	Polites peckius	Skippers	117	Jul (past peak)
27	Eastern Giant Swallowtail	Heraclides cresphontes	Swallowtails and Parnassians	115	Aug (past peak)
28	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	111	Sep (peak)
29	Red-banded Hairstreak	Calycopis cecrops	Gossamer-winged Butterflies	107	Aug (past peak)
30	Common Checkered-Skipper	Burnsius communis	Skippers	94	Oct (rising)
31	Eastern Gemmed-Satyr	Cyllopsis gemma	Brush-footed Butterflies	92	Sep (peak)
32	Wild Indigo Duskywing	Erynnis baptisiae	Skippers	88	Sep (peak)
33	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	74	Jul (past peak)
34	Tawny-edged Skipper	Polites themistocles	Skippers	72	Sep (peak)
35	Tawny Emperor	Asterocampa clyton	Brush-footed Butterflies	72	Aug (past peak)
36	Silvery Checkerspot	Chlosyne nycteis	Brush-footed Butterflies	68	Jul (past peak)
37	Sleepy Orange	Eurema nicippe	Whites, Yellows, and Sulphurs	68	Sep (peak)
38	American Lady	Vanessa virginiensis	Brush-footed Butterflies	65	May (past peak)
39	Least Skipper	Ancyloxypha numitor	Skippers	57	Jul (past peak)
40	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	56	Jul (past peak)
41	American Snout	Libytheana carinenta	Brush-footed Butterflies	55	Jul (past peak)
42	Northern Pearly-eye	Lethe anthedon	Brush-footed Butterflies	47	Aug (past peak)
43	Dun Skipper	Euphyes vestris	Skippers	45	Aug (past peak)
44	Gulf Fritillary	Dione vanillae	Brush-footed Butterflies	40	Sep (peak)
45	Goatweed Leafwing	Anaea andria	Brush-footed Butterflies	37	Apr (past peak)
46	Summer Azure	Celastrina neglecta	Gossamer-winged Butterflies	31	Jun (past peak)
47	Gray Comma	Polygonia progne	Brush-footed Butterflies	28	Mar (past peak)
48	Ocola Skipper	Panoquina ocola	Skippers	23	Sep (peak)
49	Zabulon Skipper	Lon zabulon	Skippers	23	Aug (past peak)
50	Bronze Copper	Tharsalea hyllus	Gossamer-winged Butterflies	23	Jul (past peak)