Numbers
Three species listed for North America.
Size
Wingspan approximately 36 mm.
Identification
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),
(2)Range
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.
Habitat
Usually found in moist coastal forests.
Season
Adults have been collected in July and August.
Food
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.
See Also
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 MorrisLast updated 10 December, 2022 - 9:09am