Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1209609

Fall Cankerworm Moth
Alsophila pometaria

Observation date: June 09, 2019
Submitted by: Kristi DuBois
Specimen type: Photograph
Observation notes: Thousands of caterpillars feeding on boxelder trees. Many of the boxelder trees in this fairly isolated riparian area were almost completely denuded by these caterpillars. They were webbing down from the denuded trees, and feeding in great numbers on the remaining leaves of other trees. This was in a narrow riparian area surrounded by many miles of shortgrass prairie.
Status: Resident
Verified by: davidwdroppers
Verified date: June 14, 2019
Coordinator notes: None.
Checklist region(s): United States, Montana, Phillips County