TY - BOOK T1 - Trap-nesting wasps and bees: Life histories, nests and associates Y1 - 1967 A1 - Krombein, K. K. SP - 570 pp KW - bees KW - cooperi KW - Eusiphona KW - Milichiidae PB - Smithsonian Press CY - Washington, D.C. UR - http://milichiidae.info/sites/milichiidae.info/files/Krombein_1967.pdf U1 - ib ER -