Wcislo, William T. 1993. "Communal nesting in a North American pearly-banded-bee, Nomia tetrazonata, with notes on nesting behavior of Dieunomia heteropoda (Hymenoptera: Halictidae: Nomiinae)." Annals ...
The New World species of Lasioglossum (sensu stricto) are revised, based on a study of approximately 25,000 specimens. Fifty-one species are recognized, with 20 described as new. All species are fully ...
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