Moths of North Dakota

Sphingidae: Sphinginae

Ceratomia amyntor (Geyer 1835)

Common name: Elm sphinx/ Four-horned caterpillar.

Hodges #: 7786.

Identification: Rfw 44.4 mm, fws paler along base of costal margin, outer margin slightly concave near tornus, hws without white markings, abdomen with broken diagonal dark lines and some white but no defined bands or spots.  Moth often more grayish than specimen illustrated.

Similar species: 7787.

Distribution: southern Canada and United States east of the Rockies.

Hosts: Larvae feed on Ulmus elms, rarely on Tilia basswood, and Betula birch.

ND, Cass Co., Fargo.  15- VII- 1963. coll. D. Aarhus.

larva image

MN, Clay Co., Moorhead,  ex. Ulmus americana.  VIII- 1996. pic. G. Fauske.



  Moth county records  






Last updated: 01/23/07

Gerald M. Fauske
Research Specialist
202 Hultz Hall
Fargo, ND 58105

Published by the Department of Entomology 

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