. Economic entomology for the . Our common bumble-bees.—a, Xylocopa virgmica; b, Bombus fervidus ; c, B. consimilis; d, B. virginicus ; e, B. americanorum (queen) ; f, B. fervidus; g, B. americanorum (worker), to show pollen mass on hind tibia; h, B. vagans; i, Apathus elatus. All somewhat more than natural size.

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Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublishernp, bookyear1896