Stem borer (Lepidoptera: Noctuidae) in Artemisia

A growing shoot of the host contained a larva tunneling in its interior in mid-May, causing the shoot to droop conspicuously. I transferred the larva to a carrot, in which it grew to maturity, with the adult emerging in mid-October. A. Brees and M. Kenne examined photos of the adult, and suggested P. maritima and P. nebris as candidates for the species-level identification (pers. comm., 2018).