Dion Manastyrski Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia

Scientific name: Archips tsugana (Powell)
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Tortricidae

Distribution

British Columbia

This species is generally distributed throughout south coastal British Columbia; it also occurs south to Washington.

Damage, symptoms and biology

Archips tsugana is a rather uncommon innocuous solitary defoliator.

Mature larva up to 17 mm long. Head, black unmarked. Body, yellowish green, lacks distinct markings.

This species appears to overwinter in the egg stage. Larvae are present from July to early August; pupation occurs in August and adults emerge soon after.

Other information

Acleris gloverana is similar but differs in that the length of the thoracic shield is shorter than the head rather than of equal length; also the head is brown rather than black.

Canadian Forest Service Publications

https://cfs.nrcan.gc.ca/publications/search?q=

Information on host(s)

The principal hosts of Archips tsugana are Sitka spruce and western hemlock.

Main host(s)

Sitka spruce, western hemlock

Photos

Dion Manastyrski Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia

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