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A CONE WEEVIL, CONOTRACHELUS NEOMEXICANUS, ON PONDEROSA PINE IN COLORADO: LIFE HISTORY, HABITS, AND ECOLOGICAL RELATIONSHIPS (COLEOPTERA: CURCULIONIDAE)

Published online by Cambridge University Press:  31 May 2012

Judy Bodenham ,
Robert E. Stevens  and
T. O. Thatcher
Judy Bodenham
Affiliation:
Rist Canyon Route, Bellvue, Colorado
Robert E. Stevens
Affiliation:
Rocky Mountain Forest and Range Experiment Stationf,U.S. Department of Agriculture, Forest Service, Fort Collins, Colorado
T. O. Thatcher
Affiliation:
Department of Zoology and Entomology, Colorado State University, Fort Collins, Colorado
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Abstract

Conotrachelus neomexicanus Fall occurs throughout the range of Pinus ponderosa Laws. in the central and southwestern United States. It is commonly found infesting ponderosa pine cones in north-central Colorado. C. neomexicanus is univoltine. Eggs are laid in second-year cones from May through July. Larvae mine extensively in the cones and drop to the ground for pupation in the soil. Adults emerge from the soil in late summer and early fall, return to the trees to feed on twigs, and presumably hibernate in sheltered locations during the winter A tachinid fly, Myiophasia sp. nr. ruficornis Tns., is an internal parasitoid of weevil larvae.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 7 , July 1976 , pp. 693 - 699
Copyright
Copyright © Entomological Society of Canada 1976

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