Moths of North Dakota

Noctuoidea, Notodontidae: Pygaerinae

Clostera albosigma Fitch (1856)

Common name: Sigmoid prominent

Hodges #: 7895.

Identification: Rfw 13.5  mm, Fw with three nearly parallel transverse lines.  Only Clostera in ND lacking a diagonal shade line connecting a.m and p.m lines. Eyes hairy, abdomen tufted.  

Similar species: 7896, 7898, 7901, 10869.

Distribution: southern Canada and United States.

Hosts: Larval feed on poplar/ cottonwood- Populus and willow- Salix.


ND Richland Co. West J allotment.  T135N R52W Sec.10.  Hg/UV lt.  15- VII- 2003. 
G. Fauske.


Fw showing parallel lines.




Clostera albosigma: head (left) note hairy eyes.  Right Triangular abdominal tuft.





Last updated: 04/14/09

Good web citizens cite their sources. 

This resource is to be cited as: Fauske, G. M.  [date of cited page]. cited page
 in Moths of North Dakota: an online identification guide. 
< >

Dr. Gerald M. Fauske
collection manager, NDSIRC
research specialist, NDSU
216 Hultz Hall
Fargo, ND 58105

Published by the Department of Entomology 

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