Canadian Forest Service Publications
The natural groups of species in the Genus Ips De Geer (Coleoptera : Scolytidae) in North America. 1963. Hopping, G.R. Canadian Entomologist 95(5): 508-516.
Year: 1963
Issued by: Northern Forestry Centre
Catalog ID: 30589
Language: English
Availability: Order paper copy (free), PDF (request by e-mail)