
Based on 3,893 research-grade iNaturalist observations in Arizona, Empress Leilia is most often recorded in October; in Arizona it behaves like a spring and fall migrant. It ranks #6 among butterflies recorded in the state in our data.
Asterocampa leilia
Empress Leilia in Arizona by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Arizona in October

Queen

American Snout

Painted Lady

Western Pygmy-Blue
Sleepy Orange

Dainty Sulphur

Pipevine Swallowtail

Monarch
Places to look in Arizona
Desert Botanical Garden
Coronado National Forest
Boyce Thompson Arboretum
Tonto National Forest
Yuma Territorial Prison
Apache–Sitgreaves National Forests
FAQ
When does Empress Leilia appear in Arizona?
Mainly July–November, with the most records in October.
How common is Empress Leilia in Arizona?
It ranks #6 by number of iNaturalist observations among butterflies in Arizona (3,893 records in our sample).