Holorusia hespera, the giant western crane fly, is a species of crane fly in the family Tipulidae. It is found in western North America.
H. hespera is the largest North American species of cranefly, with wings reaching lengths of . The species is noted to lack wing interference patterning on the glossy amber colored wing surface, suggested to be a result of the wing thickness. The wing surfaces are textured with ridging and folds and the coloration is uniform across the wing.[1]