Egira hiemalis (Grote)
Damage, symptoms and biologyEgira hiemalis is a common innocuous solitary defoliator.
Mature larva up to 30 mm long. Head, reddish brown with black band over vertex of each lobe. Body, greyish green to green with narrow white middorsal, subdorsal and subspiracular lines; prominent black dorsal and lateral markings on each abdominal segment.
This species overwinters as a pupa buried in the duff. Adults emerge from April to May; larvae are present from June to July and pupation occurs from July to August.
Canadian Forest Service Publications
Diet and feeding behaviour
: Feeds on the leaves of plants.
- Free-living defoliator: Feeds on and moves about freely on foliage.
Information on host(s)
The principal host of Egira hiemalis is Douglas-fir.