common oine moth of BC
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Life History and Habits:
The flight period occurs during June and July. After mating, the female deposits eggs singly in bark crevices or in wounds on the host tree. Eggs maybe laid at any height on the trunk or on the branches. The eggs hatch within 2 weeks. The newly emerged larva bores into the inner bark and the outer sapwood where its feeding activity continues for 2 years. Winding mines are produced at the feeding site, causing copious flows of pitch to accumulate at the point of entrance. The mature larva pupates during June in a silk-lined chamber at the end of the tunnel in the pitch mass close to the outer surface (Fig. 5). The pupal stage lasts about 30 days. Immediately prior to adult emergence, the pupa forces half of its length through the thin shell of pitch...