
Based on 1,094 research-grade iNaturalist observations in Connecticut, Great Spangled Fritillary is most often recorded in July; in Connecticut it behaves like a summer visitor / breeder. It ranks #7 among butterflies recorded in the state in our data.
Argynnis cybele
Great Spangled Fritillary in Connecticut 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 Connecticut in July

Monarch

Eastern Tiger Swallowtail

Silver-spotted Skipper

Spicebush Swallowtail

Small White

Red Admiral

Pearl Crescent
Huron Skipper
Places to look in Connecticut
Connecticut College Arboretum
Marsh Botanical Garden
Gillette Castle State Park
Hammonasset Beach State Park
Bigelow Hollow State Park
Dinosaur State Park and Arboretum
FAQ
When does Great Spangled Fritillary appear in Connecticut?
Mainly June–September, with the most records in July.
How common is Great Spangled Fritillary in Connecticut?
It ranks #7 by number of iNaturalist observations among butterflies in Connecticut (1,094 records in our sample).