
Based on 1,801 research-grade iNaturalist observations in Ohio, Zebra Swallowtail is most often recorded in July; in Ohio it behaves like a summer visitor / breeder. It ranks #27 among butterflies recorded in the state in our data.
Eurytides marcellus
Zebra Swallowtail in Ohio 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 Ohio in July

Monarch

Eastern Tiger Swallowtail

Silver-spotted Skipper

Pearl Crescent

Spicebush Swallowtail

Black Swallowtail

Red Admiral

Peck's Skipper
Places to look in Ohio
Cincinnati Zoo and Botanical Garden
Chadwick Arboretum
Wayne National Forest
Cox Arboretum and Gardens MetroPark
Hocking Hills State Park
Maumee Bay State Park
FAQ
When does Zebra Swallowtail appear in Ohio?
Mainly April–August, with the most records in July.
How common is Zebra Swallowtail in Ohio?
It ranks #27 by number of iNaturalist observations among butterflies in Ohio (1,801 records in our sample).