Moths of North Dakota

Elachistidae: Depressariinae

Exaeretia gracilis (Walsingham 1889)

Common name: listed here as ‘Ambrosia seed moth.’

Hodges #: 902 under Depressariodes.

Identification: Rfw 7.95 mm, fw with Rs4 terminating at apex, stalked as Rs3+4, CuA 1+2 stalked, proboscis scaled at base, basal area of fw brown.

Similar species: 1515, 3684, 3693.

Distribution: central and western U. S.

Hosts: larvae are seed borers in Ambrosia psilostachya D. C.– Western ragweed and Helianthus annuus L.– Sunflower.


moth image

ND, Cass Co., Fargo.  18- VIII- 1964.


moth map

  Moth county records  

  Host plant county records


Last updated: 03/27/02

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

Published by the Department of Entomology 

Prospective students may schedule a visit by calling 1-800-488-NDSU.