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The North American Species in Group VII of Ips De Geer (Coleoptera: Scolytidae)1

Published online by Cambridge University Press:  31 May 2012

G. R. Hopping
G. R. Hopping
Affiliation:
Forest Entomology and Pathology Laboratory, Calgary, Alberta
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Abstract

Group VII of North American Ips contains I. thomasi, new species, I. borealis Swaine and I. swainei R. Hopping. They are less than 4.0 mm. long and females have the front of the head or at least the vertex smooth and shining, impunctate, or with very fine sparse punctures; males are more coarsely granulate-punctate on the frons. The species are described and a key is given. All breed in Picea in Canada and northern United States.

Type
Articles
Information
The Canadian Entomologist , Volume 97 , Issue 2 , February 1965 , pp. 193 - 198
Copyright
Copyright © Entomological Society of Canada 1965

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References

Hopping, G. R. 1963a. The natural Groups of species in the genus Ips De Geer (Coleoptera: Scolytidae). Canad. Ent. 95: 508–516.CrossRefGoogle Scholar
Hopping, G. R. 1963b. North American species in Group I of Ips De Geer (Coleoptera: Scolytidae). Canad. Ent. 95: 1091–1096.CrossRefGoogle Scholar
Hopping, G. R. 1963c. North American species in Groups II and III of Ips De Geer (Coleoptera: Scolytidae). Canad. Ent. 95: 1202–1210.CrossRefGoogle Scholar
Hopping, G. R. 1964. North American species in Groups IV and V of Ips De Geer (Coleoptera: Scolytidae). Canad. Ent. 96: 970–978.CrossRefGoogle Scholar
Ralph, Hopping. 1939. A new species of Ips (Coleoptera: Scolytidae). Canad. Ent. 71: 168–160.Google Scholar