Overwinters as a pupa and adults fly from dusk and come readily to light.
Note Easily confused with Brindled Pug. Smaller and with a more prominent, rounder discal spot. Wing is more rounded and the pale area beyond the discal spot more obvious. Worn specimens will require dissection.
Verification Grade Comment: Take a photo if in doubt
Recorded in 74 (53%) of 140 10k Squares. First Recorded in 1887. Last Recorded in 2019. (Data up to end 2019) Additional Stats