Identification
"Mature larva to 27 mm long. Twig mimic. Head, brown with black markings, vertex deeply cleft. Body, elongate, smooth, green with dark and white markings at both the anterior and posterior ends; two prominent tubercles on dorsum of first thoracic segment." - Common Defoliating Insects of British Columbia.
Moth pale green with a distinctive sharp angle in the hindwing. Checkered fringes. Body green at the front, reddish-brown at the tail end.
Range
Common in Europe. First North American report in 1979, centered in Vancouver, B.C. and expected to spread outwards from there.
Food
Larvae feed on many shrubs and both coniferous and hardwood trees including Eastern White-cedar and Larch. See
HOSTS database for more known hosts.
