TY - BOOK AU - Krombein, Karl V. TI - Biosystematic studies of ceylonese wasps, XIX: : natural history notes in several families (Hymenoptera: Eumenidae, Vespidae, Pompilidae, and Crabronidae) T2 - Smithsonian contributions to zoology PY - 1991/// CY - Washington PB - Smithsonian Institution KW - Avispas KW - Entomología sistemática KW - Himenópteros ER -