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Mamestra configurata, the Bertha armyworm, is a moth of the family Noctuidae. It is found in the western part of the North America (including Alberta, British Columbia, Washington, New Mexico, California[3]) and Mexico.

Mamestra configurata
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Noctuidae
Genus:	Mamestra
Species:	M. configurata
Binomial name
Mamestra configurata Walker, 1856[1][2]
Synonyms
Copimamestra occidenta Grote, 1883 Mamestra occidenta

Adults are grey black with a silvery-whitish kidney shaped spot and fringe on each forewing.

The larvae feed on canola. First feeding on the leaves, but later also feeding on the pods. Full-grown larvae drop to the ground in mid to late August to pupate.[4]

References

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