Yellowlined forest looper

Yellowlined forest looper - Lateral view of mature larva
  • Latin name: Cladara limitaria (Walker)
  • French name: Arpenteuse verte du sapin
  • Order: Lepidoptera
  • Family: Geometridae
  • Synonym(s): Nyctobia limitaria Walker
Description

Distribution

Canada

Micro-habitat(s)

Needle

Damage, symptoms and biology

The yellowlined forest looper is a common innocuous solitary defoliator.

Mature larva to 24 mm long. Head, unmarked yellow-green. Body, light green; thin dark green middorsal stripe and a yellow subdorsal stripe; creamy yellow subspiracular stripe.

This species overwinters in the pupal stage. Adults emerge in May, larvae are present from May to July, and pupation occurs from July to August.

Life cycle (East of the Rockies)

Life cycle (East 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

Yellowlined forest looper

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, balsam fir, black spruce, Engelmann spruce, grand fir, mountain hemlock, Rocky Mountain Douglas-fir, Sitka spruce, subalpine fir, tamarack, western hemlock, western larch, western redcedar, white spruce

Photos
  • Yellowlined forest looper
  • Yellowlined forest looper
  • Yellowlined forest looper Lateral view of mature larva
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