The moths are sometimes split into micro and macro categories. The species in the micromoth families tend to be small, less than 1 inch to much less than an inch. Because of their small size, the micromoths are less well-known and generally require more work to identify to species. This family, the Pterophoridae, is in the micro category. Knudson and Bordelon (1999) list 27 species of plume moths for the Park.
Among the micromoths, the plume moths are probably the most eye-catching and the easiest to recognize. At rest, the front and hind wings are rolled and held straight out from the body, so that the insect has a "T"-shaped appearance.
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