Green velvet looper

Green velvet looper - Dorsal view of mature larva, on grand fir
  • Latin name: Epirrita autumnata (Harrison)
  • French name: Arpenteuse verte veloutée
  • Order: Lepidoptera
  • Family: Geometridae


Alberta, British Columbia



Damage, symptoms and biology

The green velvet looper is a common and, on occasion, a locally abundant nondestructive solitary defoliator.

Mature larva to 25 mm long. Head, unmarked green. Body, green; two narrow dark green middorsal lines; light yellow subdorsal stripe; creamy white subspiracular stripe.

This species appears to overwinter in the egg stage. Larvae are present from May to July, pupation occurs June to July, and adults emerge July to September.

Life cycle (West of the Rockies)

Life cycle (West of the Rockies)
Stage/Month J F M A M J J A S O N D

Canadian Forest Service Publications

Green velvet 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, Engelmann spruce, grand fir, mountain hemlock, Rocky Mountain Douglas-fir, Sitka spruce, subalpine fir, western hemlock, western redcedar, white spruce

  • Green velvet looper Dorsal view of mature larva, on grand fir
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