Author: Lith, J.P.Van.
Title: Revision off the Psenini of the Ethiopian Region, including Malagasy (Hymenoptera, Sphecidae, Pemphredoninae).
Description: 1974. 39-101 pp. 78 figs. Soft cover. (From: Tijdschrift voor entom. 117/3).

Keywords: Hymenoptera Wesp