Butterflies Flying in Ohio in September (60 Species)

60 butterflies were recorded flying in Ohio in September in our iNaturalist sample; 14 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

Monarch5,702 obs.

Pearl Crescent1,957 obs.

Peck's Skipper1,700 obs.

Black Swallowtail1,435 obs.

Silver-spotted Skipper1,274 obs.

Small White1,257 obs.

Viceroy1,214 obs.

Huron Skipper1,137 obs.

Painted Lady1,067 obs.

Common Buckeye1,059 obs.

Eastern Tailed-Blue1,008 obs.

Orange Sulphur753 obs.

All butterflies flying in Ohio in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	5,702	Aug (past peak)
2	Pearl Crescent	Phyciodes tharos	Brush-footed Butterflies	1,957	Aug (past peak)
3	Peck's Skipper	Polites peckius	Skippers	1,700	Aug (past peak)
4	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	1,435	Aug (past peak)
5	Silver-spotted Skipper	Epargyreus clarus	Skippers	1,274	Aug (past peak)
6	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	1,257	Sep (peak)
7	Viceroy	Limenitis archippus	Brush-footed Butterflies	1,214	Sep (peak)
8	Huron Skipper	Atalopedes huron	Skippers	1,137	Sep (peak)
9	Painted Lady	Vanessa cardui	Brush-footed Butterflies	1,067	Sep (peak)
10	Common Buckeye	Junonia coenia	Brush-footed Butterflies	1,059	Sep (peak)
11	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	1,008	Aug (past peak)
12	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	753	Sep (peak)
13	Common Checkered-Skipper	Burnsius communis	Skippers	596	Sep (peak)
14	Fiery Skipper	Hylephila phyleus	Skippers	595	Oct (rising)
15	Eastern Comma	Polygonia comma	Brush-footed Butterflies	570	Aug (past peak)
16	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	556	Aug (past peak)
17	Meadow Fritillary	Boloria bellona	Brush-footed Butterflies	514	Sep (peak)
18	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	486	Sep (peak)
19	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	482	Jul (past peak)
20	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	474	Aug (past peak)
21	Spicebush Swallowtail	Papilio troilus	Swallowtails and Parnassians	415	Jul (past peak)
22	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	371	Aug (past peak)
23	Northern Pearly-eye	Lethe anthedon	Brush-footed Butterflies	354	Aug (past peak)
24	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	351	Jul (past peak)
25	Bronze Copper	Tharsalea hyllus	Gossamer-winged Butterflies	349	Sep (peak)
26	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	321	Jun (past peak)
27	Red-spotted Admiral	Limenitis arthemis	Brush-footed Butterflies	309	Jul (past peak)
28	Least Skipper	Ancyloxypha numitor	Skippers	301	Aug (past peak)
29	Wild Indigo Duskywing	Erynnis baptisiae	Skippers	268	Aug (past peak)
30	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	251	Sep (peak)
31	Zabulon Skipper	Lon zabulon	Skippers	234	Aug (past peak)
32	Summer Azure	Celastrina neglecta	Gossamer-winged Butterflies	206	Jul (past peak)
33	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	201	Jul (past peak)
34	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	178	Aug (past peak)
35	American Snout	Libytheana carinenta	Brush-footed Butterflies	157	Jul (past peak)
36	American Copper	Lycaena hypophlaeas	Gossamer-winged Butterflies	136	Jul (past peak)
37	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	115	Apr (past peak)
38	Little Yellow	Eurema lisa	Whites, Yellows, and Sulphurs	101	Aug (past peak)
39	American Lady	Vanessa virginiensis	Brush-footed Butterflies	96	May (past peak)
40	Eastern Giant Swallowtail	Heraclides cresphontes	Swallowtails and Parnassians	89	Jul (past peak)
41	Ocola Skipper	Panoquina ocola	Skippers	70	Sep (peak)
42	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	69	Sep (peak)
43	Zebra Swallowtail	Eurytides marcellus	Swallowtails and Parnassians	56	Jul (past peak)
44	Tawny-edged Skipper	Polites themistocles	Skippers	54	Aug (past peak)
45	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	49	Jul (past peak)
46	Harvester	Feniseca tarquinius	Gossamer-winged Butterflies	45	Aug (past peak)
47	Silvery Checkerspot	Chlosyne nycteis	Brush-footed Butterflies	39	Jul (past peak)
48	Southern Dogface	Zerene cesonia	Whites, Yellows, and Sulphurs	39	Sep (peak)
49	Tawny Emperor	Asterocampa clyton	Brush-footed Butterflies	37	Jul (past peak)
50	Carolina Satyr	Hermeuptychia sosybius	Brush-footed Butterflies	36	Jul (past peak)