Gabriola dyari (Taylor)
- Latin name: Gabriola dyari (Taylor)
- French name:
- Order: Lepidoptera
- Family: Geometridae
Description
Distribution
British Columbia
Micro-habitat(s)
Needle
Damage, symptoms and biology
Gabriola dyari is a common innocuous solitary defoliator.Mature larva to 20 mm long. Head, light tan with reddish brown mottling, vertex moderately cleft. Body, stocky with numerous swellings, rusty brown with white dorsal patches on the second, fourth and eighth abdominal segments
This species appears to overwinter in the egg stage. Larvae are present from May to July, pupation occurs June to August, and adults emerge from July to August.
Life cycle (West of the Rockies)
| Stage/Month | J | F | M | A | M | J | J | A | S | O | N | D | Egg | Larva | Chrysalis | Adult |
|---|
Canadian Forest Service Publications
https://cfs.nrcan.gc.ca/publications/search?q=
Diet and feeding behaviour
-
Phyllophagous
: Feeds on the leaves of plants.
- Free-living defoliator: Feeds on and moves about freely on foliage.
Information on host(s)
Main host(s)
Amabilis fir, Engelmann spruce, grand fir, mountain hemlock, Rocky Mountain Douglas-fir, subalpine fir, western hemlock, western redcedar
Photos
Dorsal view of mature larva
Dion Manastyrski Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia
Dion Manastyrski Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia