Richmond, H. A., Dominion Forest Insect Laboratory Victoria, B.C., Canada

• Journal of the Entomological Society of British Columbia Vol. 43 (1947): Proceedings of the Entomological Society of British Columbia - Proceedings
  Current trend of the western hemlock looper (Lambdina f. lugubrosa) in the coastal forests of British Columbia (Lepidoptera, Geometridae)
  Abstract  PDF