Based on 2,026 research-grade iNaturalist observations in Pennsylvania, Variegated Fritillary is most often recorded in September; in Pennsylvania it behaves like a seasonal. It ranks #15 among butterflies recorded in the state in our data.
Euptoieta claudia
Variegated Fritillary in Pennsylvania 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 Pennsylvania in September
Monarch
Huron Skipper
Small White
Eastern Tiger Swallowtail
Black Swallowtail
Peck's Skipper
Pearl Crescent
Common Buckeye
Places to look in Pennsylvania
National ForestAllegheny National Forest
State ParkPresque Isle State Park
Botanical GardenJenkins Arboretum
State ParkCherry Springs State Park
State ParkColton Point State Park
State ParkLeonard Harrison State Park
FAQ
When does Variegated Fritillary appear in Pennsylvania?
Mainly August–October, with the most records in September.
How common is Variegated Fritillary in Pennsylvania?
It ranks #15 by number of iNaturalist observations among butterflies in Pennsylvania (2,026 records in our sample).