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Notes on some Colorado aphids having alternate food habits


, : Notes on some Colorado aphids having alternate food habits. Jl. Econ. Entom, Concord, 8: 1, 97-103

Chermes cooleyi, Gillette, and var. coweni, Gillette, live throughout the year on the Engelmann and blue spruces in one form, and the Douglas fir in the other. The lice, at the time of observation, were in the first instar; those on the spruce had their setae thrust into the bark of the twigs where, later, eggs would be deposited and would hatch out as the second generation.

US$19.90

DOI: 10.1093/jee/8.1.97


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