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General Description

A large (3.5 - 4.0 cm wingspan) grey-brown Abagrotis. Head and body grey-brown, unmarked. Forewings essentially unmarked except for the prominent narrow rectangular reniform partially filled with black scales (nearly obsolete in some specimens) and the paler terminal area. Hindwings unmarked sooty brown, slightly darker than the forewings. Antennae filiform. Sexes similar.  Very similar to A. erratica, which is browner, has the post-median line indicated by a series of fine dots, and has biserrate, bifasciculate male antennae. Keys to the species of Abagrotis and illustrations of adults and genitalia of both sexes are presented in Lafontaine, 1998. 

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© University of Alberta Museums

Source: University of Alberta Museums

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