
Based on 1,096 research-grade iNaturalist observations in Kansas, Black Swallowtail is most often recorded in August; in Kansas it behaves like a summer visitor / breeder. It ranks #9 among butterflies recorded in the state in our data.
Papilio polyxenes
Black Swallowtail in Kansas 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 Kansas in August

Monarch

Eastern Tiger Swallowtail

Common Buckeye
Hackberry Emperor
Huron Skipper

Silver-spotted Skipper

Painted Lady

Gray Hairstreak
Places to look in Kansas
Botanica, The Wichita Gardens
Mushroom Rock State Park
Kanopolis State Park
Cedar Bluff State Park
Prairie Dog State Park
State ParkWilson State Park
FAQ
When does Black Swallowtail appear in Kansas?
Mainly June–September, with the most records in August.
How common is Black Swallowtail in Kansas?
It ranks #9 by number of iNaturalist observations among butterflies in Kansas (1,096 records in our sample).