Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1138744

Achemon sphinx
Eumorpha achemon

Observation date: August 22, 2017
Date notes: This picture was taken 8/22/17 - a week prior to this their coloring was much darker, a very dark brown.
Submitted by: Rjkern8023
Specimen type: Photograph
Observation notes: Found feeding on Engelman Ivy - prolific feeders that eat only leaves. When first sighted (found 3) they were very dark, almost black. Over 1.5-2 weeks they grew and coloring lightened even lighter than pictured. Overall length at last sighting was about 4.5 inches.
Status: Resident
Verified by: stevekohler
Verified date: September 04, 2021
Coordinator notes: None.
Checklist region(s): United States, North Dakota, Cass County