Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1135500

Polyphemus moth
Antheraea polyphemus

Observation date: August 16, 2017
Submitted by: bw
Specimen type: Photograph
Observation notes: The caterpillar was mounted on the a willow branch feasting on the leaves. Several of the stems close to it had been stripped. The caterpillar is slightly bigger than my index finger.
Status: Resident
Verified by: J_Martineau
Verified date: February 05, 2021
Coordinator notes: None.
Checklist region(s): United States, Utah, Duchesne County