Ecology of the squash and gourd bee Peponapis pruinosa, on cultivated cucurbits in California (hymenoptera: Apoidea) - Hurd, Paul D., Jr.; Linsley, Earle Gorton; Michelbacher, A. E. (Washington : Smithsonian Institution, 1974)
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Keywords: Abejas; Cucurbitáceas.; Peponapis pruinosa; Polen