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  1. New genera and subgenera of augochlorine bees (Hymenoptera: Halictidae) / by Michael S. Engel, Robert W. Brooks, and Douglas Yanega.
    By: Engel, Michael S. - Brooks, Robert W. - Yanega, Douglas.
    Publication info: Lawrence, Kan. :Natural History Museum, The University of Kansas,1997.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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