Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomolo00smit Year: 1906 Fig. 473- Our common bumb!, Xvlocopa virginica : b, Bombus fervidui : c, B. conswiths: d, B. viy^inicu^ â e, B. avu-ricanorum (queen) ; /, B. fervidus: g, B. americanoriim (worker), to show pollen on hind tibia; A, B. vagans; i, Apathus elatus. All somewhat more than natural size.

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