Based on 966 research-grade iNaturalist observations in Nebraska, Black Swallowtail is most often recorded in July; in Nebraska it behaves like a summer visitor / breeder. It ranks #6 among butterflies recorded in the state in our data.
Papilio polyxenes
Black 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 July
Monarch
Eastern Tiger Swallowtail
Painted Lady
Silver-spotted Skipper
Red Admiral
Hackberry Emperor
Eastern Tailed-Blue
Small White
Places to look in Nebraska
Botanical GardenItha T. Krumme Memorial Arboretum
National ForestSamuel R. McKelvie National Forest
Botanical GardenGilman Park Arboretum
State ParkAsh Hollow State Historical Park
National ForestNebraska National Forest
State ParkIndian Cave State Park
FAQ
When does Black Swallowtail appear in Nebraska?
Mainly June–September, with the most records in July.
How common is Black Swallowtail in Nebraska?
It ranks #6 by number of iNaturalist observations among butterflies in Nebraska (966 records in our sample).