Three species listed for North America.
Wingspan approximately 36 mm.
Fresh adults have a cream to orange reniform spot, a prothoracic collar that is lighter in color than the darker gray or brown of the thorax and the forewings. From British Columbia to Northern California the forewings are usually more mottled in color and the transverse lines are usually darker and more conspicuous. The median area is usually darker than the basal and subterminal areas. Populations in central California are usually paler, with a more washed out forewing color. (1)
This species has been found along the West Coast from southern British Columbia east to the Cascades in the north and southward to the central California Coast Range.
Usually found in moist coastal forests.
Adults have been collected in July and August.
The larvae appear to be generalist feeders and have been reported to feed on various flowering trees and shrubs, such as Huckleberry Vaccinium spp, snowberry Symphoricarpus sp, salmonberry Rubus spectabilis, and Indian-plum Osmoronia(Oemlaria) cerasiformis.
A. carrissma appears to be found in a limited area in Marin and Sonoma counties north of the San Francisco Bay.
Contributed by John Davis
on 6 September, 2007 - 6:52pm
Additional contributions by Steve Morris
Last updated 10 December, 2022 - 9:09am