Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948.2005-10-062005-10-061935http://hdl.handle.net/2246/21178 p. ; 24 cm.Bees at flowers of Gilia calcarea Jones -- A Melissodes new to Colorado -- Osmia from California -- Bees at flowers of Convolvulus hermannioides A. Gray -- An epeoline supposed to be parasitic on Nomia -- A bee visiting flowers of Parosela nana (Torrey).790577 bytesapplication/pdfen-USQL1 .A436 no.766, 1935Bees -- West (U.S.)Insects -- West (U.S.)text