Thera otisi (Dyar)
British Columbia, Alberta
Damage, symptoms and biologyThera otisi is a rather uncommon innocuous solitary defoliator.
Mature larva up to 16 mm long. Head, yellowish green, held under thorax. Body, green; yellowish subdorsal stripes; spiracular stripe red above and white below.
This species appears to overwinter in the egg stage. Larvae are present June to July, pupation occurs in July, and adults emerge July to August.
Life cycle (West of the Rockies)
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)
Juniper, Rocky Mountain juniper
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