- Scientific name: Eupithecia subfuscata (Haworth)
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Lepidoptera
- Family: Geometridae
-
Partial list of synonyms:
- Eupithecia castigata Hübner
Distribution
- Canada
This holarctic species is generally distributed throughout British Columbia south of 560latitude; it also occurs east to Newfoundland, south to New Mexico, and in Eurasia.
Damage, symptoms and biology
Eupithecia subfuscata is a relatively uncommon innocuous solitary defoliator.
Mature larva up to 16 mm long. Body colour highly variable from light brown to dark brown, dorsum marked with dark brown wishbone pattern; body covered with very small greyish white pinnacula.
This species overwinters in the pupal stage. Adults emerge from May to July; larvae are present from late June to September, and pupation occurs in September.
Canadian Forest Service Publications
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)
Coniferous hosts of the Eupithecia subfuscata include Douglas-fir, Sitka spruce and lodgepole pine; hardwood hosts include willow, alder, birch, poplar and Garry oak.
Main host(s)
- Alaska paper birch
- Alders
- Balsam poplar
- Balsam willow
- Bebb willow
- Birch
- Black cottonwood
- Black willow
- Blueleaf birch
- Carolina poplar
- Cherry birch
- Douglas-fir
- Dwarf birch
- Eastern cottonwood
- European black alder
- European black poplar
- European white birch
- European white poplar
- Feltleaf willow
- Garry oak
- Golden weeping willow
- Green alder
- Grey birch
- Hazel alder
- Heartleaf willow
- Hooker willow
- Hybrid poplar
- Hybrid white willow
- Jack’s hybrid poplar
- Kenai birch
- Lanceleaf cottonwood
- Largetooth aspen
- Laurel willow
- Littletree willow
- Lodgepole pine
- Lombardy poplar
- Low birch
- Mackenzie willow
- Meadow willow
- Mountain alder
- Mountain paper birch
- Narrowleaf cottonwood
- Pacific willow
- Peachleaf willow
- Plains cottonwood
- Plains cottonwood
- Poplars / aspens / cottonwoods
- Pussy willow
- Red alder
- Sandbar willow
- Satiny willow
- Scouler willow
- Shining willow
- Siberian alder
- Sitka alder
- Sitka spruce
- Sitka willow
- Speckled alder
- Trembling aspen
- Violet willow
- Water birch
- White birch
- White birch
- Willow
- Yellow birch
Photos
Adulte at rest
Thérèse Arcand
Robert W. Duncan Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia
Robert W. Duncan Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia
Robert W. Duncan Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia