Canadian Forest Service Publications
Description and morphology of the immature stages of three closely related species of Contarinia Rond. (Diptera: Cecidomyiidae) from galls on Douglas-fir needles. 1961. Condrashoff, S.F. The Canadian Entomologist 93(10): 833-851.
Available from: Pacific Forestry Centre
Catalog ID: 20873
Available from the Journal's Web site. †
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