Descrizione

Paris, Gouvernement général de l'Afrique Occidentale française, 1950. 4to (27.5 x 22.1 cm). 639 [499; 501-639] pp.;1553 [1463; 90] text figures; 4 [4; 0] plates. Original printed wrappers. = Two well-illustrated papers by the French entomologist and malacologist Jean Risbec (1895-1964). The first deals with insects from various Sub-Saharan crops, including benign and noxious species; the second deals with parasitic wasps, and contains the descriptions and illustrations of many new and poorly known species. The drophead title of the second work is Proctotrupidés de la Section technique d'agriculture tropicale (O.A.F.) et proctotrupidés du Muséum national d'Histoire naturelle (Afrique et Colonies françaises). Front free endpaper partly clipped, the former owner name F. Gorriols, however, found in the top margin of p. 401; otherwise a very good, clean copy.