KROMBEIN & PULAWSKI   1986

Biosystematic Studies of Ceylonese Wasps, XVI: A Revision of Gastrosericus Spinola (Hymenoptera: Sphecoidea: Larridae).

Smithsonian Contribution to Zoology, No. 436, 20 S., A4, brosch.

KROMBEIN & PULAWSKI   1994

Biosystematic Studies of Ceylonese Wasps, XX: A Revision of Trachysphex Kohl, 1883, with Notes on Other Oriental Species (Hymenoptera: Sphecidae: Larrinae).

Smithsonian Contributions to Zool., No. 552, 106 S., A4, brosch.