About Pediasia trisecta Walker, 1856
Pediasia trisecta, commonly known as the large sod webworm or greater sod webworm, is a species of moth belonging to the family Crambidae. This species can be found in the United States and southern Canada. The wingspan of adult Pediasia trisecta ranges from 23 to 33 mm. Adults are active from May through October. Adult moths feed exclusively on dew. The larvae of this moth feed on a variety of grass species from the family Poaceae.