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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Engel, Michael S.
    Publication info: New York, NY American Museum of Natural History c2007
    Holding Institution: American Museum of Natural History Library
    Subjects: Abnormalities  Anatomy  Apidae  Bees  Evolution  Generative organs  Gynandromorphism  Homology (Biology)  Hymenoptera  Insects  Melectini  Sting (Anatomy)  Thyreus  Thyreus redactulus