Choristoneura biennis explained

Choristoneura biennis, the two-year-cycle budworm moth, is a species of moth of the family Tortricidae. It is found in Canada, where it has been recorded from Alberta and British Columbia.^[1]

The wingspan is about 26 mm. Adults have been recorded on wing in July.

The larvae feed on Abies lasiocarpa, Picea engelmanni and Picea glauca.^{[2] [3]}

Notes and References

1. http://mothphotographersgroup.msstate.edu/species.php?hodges=3641 mothphotographersgroup
2. http://www.tortricid.net/foodplants.asp Brown, J. W., G. Robinson & J. A. Powell. 2008. Food plant database of the leafrollers of the world (Lepidoptera: Tortricidae) (Version 1.0)
3. http://cfs.nrcan.gc.ca/publications?id=23633 Predicting defoliation by Choristoneura biennis (Lepidoptera: Tortricidae) 2003. Nealis, V.G.; Turnquist, R. The Canadian Entomologist 135: 903-907.