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Studies of Halictinae (Apoidea: Halictidae), I: Revision of New World Lasioglossum Curtis
The New World species of Lasioglossum (sensu stricto) are revised, based on a study of approximately 25,000 specimens, and a preliminary study of the phylogenetic interrelationships of included species is presented. Expand
Glossal morphology of the Colletidae and recognition of the Stenotritidae at the family level (Hymenoptera: Apoidea).
The historical basis for this family is the possession of an obtuse glossa in adults, which is a feature shared with all non-apoid Hymenoptera, apparently a plesiomorphic apoid condition and therefore of no value in supporting colletid monophyly. Expand
The Role of Workers and New Queens in the Ergonomics of a Bumblebee Colony (Hymenoptera: Apoidea)
In a study of a colony of Bombus vosnesenskii, the nest con tents and net inflow and net outflow of sugar and pollen were analyzed at different times during the colony cycle. When the founding queenExpand
Studies of halictinae (Apoidea: Halictidae), II: Revision of Sphecodogastra ashmead, floral specialists of onagraceae
The bee genus Sphecodogastra Ashmead is revised from the study of approximately 3200 specimens, and eight species are recognized with three described as new. Expand
A Catalog and Review of Immature Apoidea (Hymenoptera)
The systematic literature covering the larvae and pupae of all bees is reviewed and presented in catalog form, with emphasis placed on what yet needs to be accomplished and which taxa should be considered primary targets for collection. Expand