y - JOUR AU - Michener, Charles D. PY - 1938 DA - 1900/01/01 TI - A Review of the American Bees of Macropis (Hymen.)SP - 049645 VL - 45 AB - SN - 0033-2615 UR - https://doi.org/10.1155/1938/49645 DO - 10.1155/ 338 /49645 JF - Psyche PB - Hindawi Publishing Corporation KW - ER -