Butterflies Flying in Arizona in September (60 Species)

60 butterflies were recorded flying in Arizona 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.

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

Top butterflies in September

Queen1,595 obs.

American Snout1,394 obs.

Pipevine Swallowtail1,042 obs.

Bordered Patch816 obs.

Ceraunus Blue686 obs.

Empress Leilia638 obs.

Sleepy Orange597 obs.

Painted Lady583 obs.

Dainty Sulphur464 obs.

Arizona Sister453 obs.

Gray Hairstreak449 obs.

Western Pygmy-Blue448 obs.

All butterflies flying in Arizona in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Queen	Danaus gilippus	Brush-footed Butterflies	1,595	Sep (peak)
2	American Snout	Libytheana carinenta	Brush-footed Butterflies	1,394	Sep (peak)
3	Pipevine Swallowtail	Battus philenor	Swallowtails and Parnassians	1,042	Sep (peak)
4	Bordered Patch	Chlosyne lacinia	Brush-footed Butterflies	816	Aug (past peak)
5	Ceraunus Blue	Hemiargus ceraunus	Gossamer-winged Butterflies	686	Aug (past peak)
6	Empress Leilia	Asterocampa leilia	Brush-footed Butterflies	638	Oct (rising)
7	Sleepy Orange	Eurema nicippe	Whites, Yellows, and Sulphurs	597	Sep (peak)
8	Painted Lady	Vanessa cardui	Brush-footed Butterflies	583	Aug (past peak)
9	Dainty Sulphur	Nathalis iole	Whites, Yellows, and Sulphurs	464	Oct (rising)
10	Arizona Sister	Adelpha eulalia	Brush-footed Butterflies	453	Aug (past peak)
11	Gray Hairstreak	Strymon melinus	Gossamer-winged Butterflies	449	Sep (peak)
12	Western Pygmy-Blue	Brephidium exilis	Gossamer-winged Butterflies	448	Oct (rising)
13	Fiery Skipper	Hylephila phyleus	Skippers	419	Sep (peak)
14	Variegated Fritillary	Euptoieta claudia	Brush-footed Butterflies	401	Aug (past peak)
15	Monarch	Danaus plexippus	Brush-footed Butterflies	372	Oct (rising)
16	Gulf Fritillary	Dione vanillae	Brush-footed Butterflies	349	Sep (peak)
17	Funereal Duskywing	Erynnis funeralis	Skippers	346	Sep (peak)
18	Cloudless Sulphur	Phoebis sennae	Whites, Yellows, and Sulphurs	339	Sep (peak)
19	Fatal Metalmark	Calephelis nemesis	Metalmark Butterflies	320	Sep (peak)
20	Southern Dogface	Zerene cesonia	Whites, Yellows, and Sulphurs	286	Oct (rising)
21	Reakirt's Blue	Echinargus isola	Gossamer-winged Butterflies	262	Aug (past peak)
22	Orange Skipperling	Oarisma aurantiaca	Skippers	258	Sep (peak)
23	Echo Azure	Celastrina echo	Gossamer-winged Butterflies	255	Jul (past peak)
24	Marine Blue	Leptotes marina	Gossamer-winged Butterflies	250	May (past peak)
25	Western Giant Swallowtail	Heraclides rumiko	Swallowtails and Parnassians	248	Oct (rising)
26	Two-tailed Swallowtail	Papilio multicaudata	Swallowtails and Parnassians	216	Aug (past peak)
27	California Patch	Chlosyne californica	Brush-footed Butterflies	194	Sep (peak)
28	Dorantes Longtail	Cecropterus dorantes	Skippers	194	Sep (peak)
29	American Lady	Vanessa virginiensis	Brush-footed Butterflies	189	Sep (peak)
30	Checkered White	Pontia protodice	Whites, Yellows, and Sulphurs	176	Apr (past peak)
31	Mexican Yellow	Eurema mexicana	Whites, Yellows, and Sulphurs	166	Oct (rising)
32	Black Swallowtail	Papilio polyxenes	Swallowtails and Parnassians	152	Sep (peak)
33	Orange Sulphur	Colias eurytheme	Whites, Yellows, and Sulphurs	139	Aug (past peak)
34	Gray Buckeye	Junonia grisea	Brush-footed Butterflies	115	May (past peak)
35	Texan Crescent	Anthanassa texana	Brush-footed Butterflies	113	Apr (past peak)
36	Great Purple Hairstreak	Atlides halesus	Gossamer-winged Butterflies	100	Oct (rising)
37	Eufala Skipper	Lerodea eufala	Skippers	95	Oct (rising)
38	Hackberry Emperor	Asterocampa celtis	Brush-footed Butterflies	84	Sep (peak)
39	Mournful Duskywing	Erynnis tristis	Skippers	54	Aug (past peak)
40	Great Southern White	Ascia monuste	Whites, Yellows, and Sulphurs	50	Sep (peak)
41	Theona Checkerspot	Chlosyne theona	Brush-footed Butterflies	48	Aug (past peak)
42	Tawny Emperor	Asterocampa clyton	Brush-footed Butterflies	45	Sep (peak)
43	Common Sootywing	Pholisora catullus	Skippers	42	Aug (past peak)
44	Small White	Pieris rapae	Whites, Yellows, and Sulphurs	38	Jul (past peak)
45	Desert Checkered-Skipper	Burnsius philetas	Skippers	37	Oct (rising)
46	White Checkered-Skipper	Burnsius albezens	Skippers	37	Oct (rising)
47	Mourning Cloak	Nymphalis antiopa	Brush-footed Butterflies	36	Apr (past peak)
48	Mylitta Crescent	Phyciodes mylitta	Brush-footed Butterflies	35	May (past peak)
49	Juniper Hairstreak	Callophrys gryneus	Gossamer-winged Butterflies	33	Apr (past peak)
50	Lupine Blue	Icaricia lupini	Gossamer-winged Butterflies	33	May (past peak)