Perizoma blandiata, the pretty pinion, is a moth of the family Geometridae. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775. It is found from most of central and northern Europe to central Asia as far as the Khangai Mountains. The larva is short and powerful with short bristles and pale green with a wide red longitudinal stripe on each side of the back.This colour combination represents an excellent camouflage and can be interpreted as an imitation of the reddish stem of the Euphrasia on which it feeds. The species is found on moors and other open places.