Moths of North Dakota

Arctiidae: Arctiinae: Arctiini

Virbia fragilis (Strecker 1878)

Common name: listed here as 'Fragile virbia.'

Hodges #: 8125.

Identification: Rfw 11.5 mm, fw venation quadrifid, hw rarely with black discal spot; dorsal surface of antennae annulated with brown and whitish; ventral abdomen brown, orange or yellow.

Similar species:  8123, 8121, 8114, 8092, 6256.

Distribution: southwestern Canada and western U.S.

Hosts: Larvae have been reared on Taraxicum-- dandelion.

Note:  The very similar V. aurantiaca (Hübner) occurs in SD.  Lightest males resemble  V. ferruginosa, darkest females resemble the lower right figure of V. fragilis.  See key and photo gallery.  Antennal characters are those of V. fragilis; rfw length averages 1 mm shorter. 



ND, Ransom Co., Berg allotment, Sheyenne Natl. grasslands.  T134N  R57W  Sec. 22. Hg/UV light. 22- VII- 1993, coll. G. Fauske.

ND, Richland Co., Mirror Pool state recreation area. Hg/UV light. 23- VII- 1986, coll K. Mundall.


Antenna of Virbia fragilis





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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