Ponometia candefacta, the olive-shaded bird-dropping moth, is a moth of the family Noctuidae. It is found in North America, where it has been recorded from the northern United States to southern Mexico.[1] It has been introduced to Russia as a biological control agent of Ambrosia artemisiifolia. The habitat consists of dry, weedy, disturbed areas at low elevations.
The wingspan is 18–22 mm.[2] Adults are on wing in summer, from April to September.
The larvae feed on Asteraceae, including Aster and Ambrosia species. They are green with a white lateral stripe.[3]