Angle-lined Prominent
Clostera inclusa (Hübner, 1831), fam. Notodontidae, P-no. 930004
Host plants: Feeds on birch (Betulaceae) and willows (Salix spp.).
Date found(s): August 22, 2026
Location(s) found: Meramec State Park, Franklin County, MO
Notes: Unlike the closely related sigmoid prominent, the angle-lined prominent is typically gregarious. They are usually found in groups of 2–20 individuals during the day, wrapped within shelters produced from living leaves spun together with their silk. Find these by looking for these leaf shelters on willows or by hunting at night when they are more likely to be found feeding in the open.
A Thousand Acres of Silphiums 