Eulithis destinata (Moesch)
This species occurs throughout the central interior of British Columbia; it also occurs east to New Brunswick.
Damage, symptoms and biology
Eulithis destinata is a rather uncommon solitary defoliator.
Mature larva up to 25 mm long. Head, light grey with dark markings. Body, grey; middorsal light grey diamond pattern; second thoracic segment swollen dorsally.
This species appears to overwinter in the egg stage. Larvae are present from late May to July; pupation occurs from mid-July to early August and adults emerge in 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 coniferous host of Eulithis destinata is subalpine fir; common non-coniferous hosts include willow and alder.
Alders, balsam willow, Bebb willow, black willow, European black alder, feltleaf willow, golden weeping willow, green alder, hazel alder, heartleaf willow, hooker willow, hybrid white willow, laurel willow, littletree willow, Mackenzie willow, meadow willow, mountain alder, Pacific willow, peachleaf willow, pussy willow, red alder, sandbar willow, satiny willow, Scouler willow, shining willow, Siberian alder, Sitka alder, Sitka willow, speckled alder, subalpine fir, violet willow, willow
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