Based on 2,442 research-grade iNaturalist observations in Missouri, Hackberry Emperor is most often recorded in August; in Missouri it behaves like a summer visitor / breeder. It ranks #10 among butterflies recorded in the state in our data.
Asterocampa celtis
Hackberry Emperor in Missouri 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 Missouri in August
Monarch
Eastern Tiger Swallowtail
Spicebush Swallowtail
Common Buckeye
Silver-spotted Skipper
Pipevine Swallowtail
Black Swallowtail
Pearl Crescent
Places to look in Missouri
Botanical GardenMissouri Botanical Garden
National ForestMark Twain National Forest
Botanical GardenMissouri State Arboretum
State ParkBig Oak Tree State Park
State ParkTable Rock State Park
State ParkMark Twain Birthplace State Historic Site
FAQ
When does Hackberry Emperor appear in Missouri?
Mainly May–September, with the most records in August.
How common is Hackberry Emperor in Missouri?
It ranks #10 by number of iNaturalist observations among butterflies in Missouri (2,442 records in our sample).