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  1. The nest biology of the bee Andrena (Ptilandrena) erigeniae Robertson (Hymenoptera: Andrenidae) / Lloyd R. Davis, Jr., Wallace E. LaBerge.
    By: Davis, Lloyd R. - LaBerge, Wallace E.
    Publication info: Urbana :Illinois Natural History Survey,1975.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Andrena  Bees  Brownfield Woods  Illinois  
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  2. The nest biology of the bees : Andrena (Melandrena) regularis Malloch and Andrena (Melandrena) carlini Cockerell (Hymenoptera: Andrenidae) / Martha Northam Schrader, Wallace E. LaBerge.
    By: Schrader, Martha Northam. - LaBerge, Wallace E. - Illinois.
    Publication info: Urbana :State of Illinois, Dept. of Registration and Education, Natural History Survey Division,1978.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Andrena  Bees  Champaign County  Illinois  New Brunswick  
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