Butterflies Flying in Texas in September (60 Species)

60 butterflies were recorded flying in Texas in September 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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Top butterflies in September

Gulf Fritillary6,653 obs.

Monarch5,053 obs.

Queen4,134 obs.

Pipevine Swallowtail3,253 obs.

Fiery Skipper2,823 obs.

Hackberry Emperor2,737 obs.

Gray Hairstreak2,303 obs.

Painted Lady1,754 obs.

Common Buckeye1,748 obs.

American Snout1,685 obs.

Clouded Skipper1,632 obs.

Bordered Patch1,581 obs.

All butterflies flying in Texas in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Gulf Fritillary	Dione vanillae	Brush-footed Butterflies	6,653	Oct (rising)
2	Monarch	Danaus plexippus	Brush-footed Butterflies	5,053	Oct (rising)
3	Queen	Danaus gilippus	Brush-footed Butterflies	4,134	Oct (rising)
4	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	3,253	Apr (past peak)
5	Fiery Skipper	Hylephila phyleus	Skippers	2,823	Oct (rising)
6	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	2,737	Apr (past peak)
7	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	2,303	Apr (past peak)
8	Painted Lady	Vanessa cardui	Brush-footed Butterflies	1,754	Oct (rising)
9	Common Buckeye	Junonia coenia	Brush-footed Butterflies	1,748	Apr (past peak)
10	American Snout	Libytheana carinenta	Brush-footed Butterflies	1,685	Oct (rising)
11	Clouded Skipper	Lerema accius	Skippers	1,632	Oct (rising)
12	Bordered Patch	Chlosyne lacinia	Brush-footed Butterflies	1,581	Jul (past peak)
13	Tawny Emperor	Asterocampa clyton	Brush-footed Butterflies	1,579	Oct (rising)
14	Phaon Crescent	Phyciodes phaon	Brush-footed Butterflies	1,302	Oct (rising)
15	Little Yellow	Eurema lisa	Whites, Yellows, and Sulphurs	1,277	Oct (rising)
16	Huron Skipper	Atalopedes huron	Skippers	1,243	Oct (rising)
17	Pearl Crescent	Phyciodes tharos	Brush-footed Butterflies	1,220	May (past peak)
18	Eastern Tiger Swallowtail	Papilio glaucus	Swallowtails and Parnassians	1,172	May (past peak)
19	Ceraunus Blue	Hemiargus ceraunus	Gossamer-winged Butterflies	1,162	Oct (rising)
20	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	1,157	Oct (rising)
21	Eastern Giant Swallowtail	Heraclides cresphontes	Swallowtails and Parnassians	1,019	Sep (peak)
22	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	963	Apr (past peak)
23	Horace's Duskywing	Erynnis horatius	Skippers	934	May (past peak)
24	White-striped Longtail	Chioides albofasciatus	Skippers	926	Oct (rising)
25	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	896	May (past peak)
26	Question Mark	Polygonia interrogationis	Brush-footed Butterflies	784	Apr (past peak)
27	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	776	Sep (peak)
28	Common Mestra	Mestra amymone	Brush-footed Butterflies	769	Oct (rising)
29	Sleepy Orange	Eurema nicippe	Whites, Yellows, and Sulphurs	746	Oct (rising)
30	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	663	Apr (past peak)
31	Long-tailed Skipper	Urbanus proteus	Skippers	659	Oct (rising)
32	Viceroy	Limenitis archippus	Brush-footed Butterflies	647	Oct (rising)
33	Western Giant Swallowtail	Heraclides rumiko	Swallowtails and Parnassians	581	Oct (rising)
34	Large Orange Sulphur	Phoebis agarithe	Whites, Yellows, and Sulphurs	560	Oct (rising)
35	Eufala Skipper	Lerodea eufala	Skippers	534	Oct (rising)
36	Red Admiral	Vanessa atalanta	Brush-footed Butterflies	533	Apr (past peak)
37	Goatweed Leafwing	Anaea andria	Brush-footed Butterflies	499	Mar (past peak)
38	Southern Broken-Dash	Polites otho	Skippers	479	Oct (rising)
39	Dun Skipper	Euphyes vestris	Skippers	473	Apr (past peak)
40	Lyside Sulphur	Kricogonia lyside	Whites, Yellows, and Sulphurs	461	Apr (past peak)
41	Western Pygmy-Blue	Brephidium exilis	Gossamer-winged Butterflies	455	Oct (rising)
42	Juniper Hairstreak	Callophrys gryneus	Gossamer-winged Butterflies	422	Mar (past peak)
43	White Peacock	Anartia jatrophae	Brush-footed Butterflies	383	Nov (rising)
44	Great Purple Hairstreak	Atlides halesus	Gossamer-winged Butterflies	339	Oct (rising)
45	Spicebush Swallowtail	Papilio troilus	Swallowtails and Parnassians	333	Aug (past peak)
46	Celia's Roadside-Skipper	Amblyscirtes celia	Skippers	329	Oct (rising)
47	Southern Dogface	Zerene cesonia	Whites, Yellows, and Sulphurs	319	Oct (rising)
48	Tropical Checkered-Skipper	Burnsius oileus	Skippers	318	Oct (rising)
49	Common Wood-Nymph	Cercyonis pegala	Brush-footed Butterflies	315	Jun (past peak)
50	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	287	Apr (past peak)