|scientific name Autographa v-alba |
common name White Y Mark
Openings and edges in mature mixedwood forest.
Adults have been collected in Alberta in August.
A medium-size (3.8-4.0 cm wingspan) contrasting grey and black moth. Forewings are smooth, almost iridescent pale violet grey and dark slate grey. The basal area and the areas distal to the postmedian and subterminal lines are pale violet grey, while the median area, especially around and below the stigma, and the area along the basal side of the subterminal line is dark slate grey and black. The stigma is a small, silvery white v-shape with an extension to the antemedian line. Forewing pattern is very attractive, and unlike any other Alberta moth. Hindwings are dark sooty grey-brown, antennae are simple, and both the sexes are alike.
The adults are nocturnal and come to light. There is a single brood each year.
An uncommon and local species, at the northeastern edge of its range in the foothills of Alberta.
Unknown. Probably general feeders on herbaceous plants like most other members of the genus.
A western species, found from the foothills of Alberta west almost to the coast of British Columbia, south to southern Washington, northeastern Oregon, central Idaho, northern Wyoming and central Utah. In Alberta, it has been taken in the foothills and low elevations in the mountains, north almost to Hinton.
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