Biosystematic studies of Ceylonese Wasps,xvii : a revision of Sri Lankan and South Indian bembix fabricius (hymenoptera, sphecoidea, nyssonidae) /
Karl V. and J.Vander Vecht
- Washington : Smithsonian Institution Press, 1987
- 30 p. : ill ; 28 cm.
- Smithsonian contributions to zoology no.451 .