Other hosts are green ash, black locust, elm, maple, willow, cottonwood, and sometimes fruit trees and ornamental shrubs. Identifying the Insect. Brown pupal skins protruding from entrance holes are common in early summer.
Adults are grayish, stout-bodied moths.
The hindwing in the male has an orange spot. Identifying the Injury. Later, frass is ejected from entrance holes. Galleries are open or loosely plugged with frass. Holes in lumber are dark stained.