Butterflies Flying in Ohio in October (60 Species)

60 butterflies were recorded flying in Ohio in October in our iNaturalist sample; 2 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 October

Monarch1,116 obs.

Common Buckeye943 obs.

Painted Lady880 obs.

Pearl Crescent633 obs.

Orange Sulphur629 obs.

Fiery Skipper606 obs.

Small White539 obs.

Common Checkered-Skipper465 obs.

Variegated Fritillary448 obs.

Eastern Comma428 obs.

Black Swallowtail266 obs.

Silver-spotted Skipper229 obs.

All butterflies flying in Ohio in October

#	Species	Scientific name	Family	Obs.	Peak in state
1	Monarch	Danaus plexippus	Brush-footed Butterflies	1,116	Aug (past peak)
2	Common Buckeye	Junonia coenia	Brush-footed Butterflies	943	Sep (past peak)
3	Painted Lady	Vanessa cardui	Brush-footed Butterflies	880	Sep (past peak)
4	Pearl Crescent	Phyciodes tharos	Brush-footed Butterflies	633	Aug (past peak)
5	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	629	Sep (past peak)
6	Fiery Skipper	Hylephila phyleus	Skippers	606	Oct (peak)
7	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	539	Sep (past peak)
8	Common Checkered-Skipper	Burnsius communis	Skippers	465	Sep (past peak)
9	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	448	Sep (past peak)
10	Eastern Comma	Polygonia comma	Brush-footed Butterflies	428	Aug (past peak)
11	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	266	Aug (past peak)
12	Silver-spotted Skipper	Epargyreus clarus	Skippers	229	Aug (past peak)
13	Clouded Sulphur	Colias philodice	Whites, Yellows, and Sulphurs	225	Sep (past peak)
14	Huron Skipper	Atalopedes huron	Skippers	215	Sep (past peak)
15	Bronze Copper	Tharsalea hyllus	Gossamer-winged Butterflies	210	Sep (past peak)
16	Viceroy	Limenitis archippus	Brush-footed Butterflies	188	Sep (past peak)
17	Meadow Fritillary	Boloria bellona	Brush-footed Butterflies	160	Sep (past peak)
18	Eastern Tailed-Blue	Everes comyntas	Gossamer-winged Butterflies	153	Aug (past peak)
19	Peck's Skipper	Polites peckius	Skippers	117	Aug (past peak)
20	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	101	Aug (past peak)
21	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	89	Jul (past peak)
22	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	75	Aug (past peak)
23	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	73	Jul (past peak)
24	American Copper	Lycaena hypophlaeas	Gossamer-winged Butterflies	73	Jul (past peak)
25	American Lady	Vanessa virginiensis	Brush-footed Butterflies	68	May (past peak)
26	Ocola Skipper	Panoquina ocola	Skippers	59	Sep (past peak)
27	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	56	Aug (past peak)
28	Spicebush Swallowtail	Papilio troilus	Swallowtails and Parnassians	55	Jul (past peak)
29	Wild Indigo Duskywing	Erynnis baptisiae	Skippers	47	Aug (past peak)
30	Milbert's Tortoiseshell	Aglais milberti	Brush-footed Butterflies	40	Sep (past peak)
31	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	38	Apr (past peak)
32	Least Skipper	Ancyloxypha numitor	Skippers	35	Aug (past peak)
33	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	32	Sep (past peak)
34	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	31	Jul (past peak)
35	Little Yellow	Eurema lisa	Whites, Yellows, and Sulphurs	31	Aug (past peak)
36	American Snout	Libytheana carinenta	Brush-footed Butterflies	27	Jul (past peak)
37	Great Spangled Fritillary	Argynnis cybele	Brush-footed Butterflies	19	Jun (past peak)
38	Tawny-edged Skipper	Polites themistocles	Skippers	18	Aug (past peak)
39	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	17	Sep (past peak)
40	Harvester	Feniseca tarquinius	Gossamer-winged Butterflies	15	Aug (past peak)
41	Sleepy Orange	Eurema nicippe	Whites, Yellows, and Sulphurs	14	Aug (past peak)
42	Red-banded Hairstreak	Calycopis cecrops	Gossamer-winged Butterflies	14	Aug (past peak)
43	Red-spotted Admiral	Limenitis arthemis	Brush-footed Butterflies	12	Jul (past peak)
44	Summer Azure	Celastrina neglecta	Gossamer-winged Butterflies	12	Jul (past peak)
45	Eastern Giant Swallowtail	Heraclides cresphontes	Swallowtails and Parnassians	12	Jul (past peak)
46	Northern Pearly-eye	Lethe anthedon	Brush-footed Butterflies	12	Aug (past peak)
47	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	11	Aug (past peak)
48	Southern Dogface	Zerene cesonia	Whites, Yellows, and Sulphurs	11	Sep (past peak)
49	Zabulon Skipper	Lon zabulon	Skippers	10	Aug (past peak)
50	Cassius Blue	Leptotes cassius	Gossamer-winged Butterflies	8	Oct (peak)