|The Rocky Mountain Duskywing is a small
(1 3/8 - 1 3/4 inch wingspan) skipper. Skippers are distinguished from
true butterflies by their relatively large bodies compared to their
angular wings. They get their name from their characteristic rapid
darting flight. Though duskywings are in general rather difficult to
distinguish from one another, the Rocky Mountain Duskywing is overall
brown and grey in color and lacks the white band found on the edges of
the wing common to some other duskywings.
Rocky Mountain Duskywing
caterpillars feed on the leaves of the Gambel Oak.
The Rocky Mountain Duskywing is found throughout the
Rocky Mountain States. They can typically be found flying between late
April and early June. To seek females, males perch in gulches during the
day. After mating, females lay eggs one at a time on the bark and leaf
buds of the host plant.