
Based on 1,116 research-grade iNaturalist observations in Nebraska, Eastern Tiger Swallowtail is most often recorded in August; in Nebraska it behaves like a summer visitor / breeder. It ranks #3 among butterflies recorded in the state in our data.
Papilio glaucus
Eastern Tiger Swallowtail in Nebraska 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 Nebraska in August

Monarch

Silver-spotted Skipper

Painted Lady

Black Swallowtail

Eastern Tailed-Blue
Huron Skipper

Common Buckeye

Gray Hairstreak
Places to look in Nebraska
Itha T. Krumme Memorial Arboretum
National ForestSamuel R. McKelvie National Forest
Gilman Park Arboretum
Ash Hollow State Historical Park
Nebraska National Forest
Indian Cave State Park
FAQ
When does Eastern Tiger Swallowtail appear in Nebraska?
Mainly July–August, with the most records in August.
How common is Eastern Tiger Swallowtail in Nebraska?
It ranks #3 by number of iNaturalist observations among butterflies in Nebraska (1,116 records in our sample).