
Based on 1,667 research-grade iNaturalist observations in Massachusetts, Pearl Crescent is most often recorded in July; in Massachusetts it behaves like a summer visitor / breeder. It ranks #11 among butterflies recorded in the state in our data.
Phyciodes tharos
Pearl Crescent in Massachusetts 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 Massachusetts in July

Monarch

Silver-spotted Skipper

Small White
American Copper

Red Admiral

Spicebush Swallowtail
Common Wood-Nymph

Eastern Tiger Swallowtail
Places to look in Massachusetts
Arnold Arboretum
Boston Public Garden
Berkshire Botanical Garden
Halibut Point State Park
Hammond Pond Reservation
Tolland State Forest
FAQ
When does Pearl Crescent appear in Massachusetts?
Mainly May–September, with the most records in July.
How common is Pearl Crescent in Massachusetts?
It ranks #11 by number of iNaturalist observations among butterflies in Massachusetts (1,667 records in our sample).