C.  van Achterberg, ?Revision of the European Helconini (Hymenoptera: Braconidae: Helconinae)?, Zoologische Mededelingen, vol. 61, no. 18, pp. 263-285, 1987.

C.  van Achterberg, ?Revision of the subtribe Pseudohelconina nov.(Hymenoptera: Braconidae)?, Zoologische Mededelingen Leiden, vol. 63, no. 22, pp. 283-308, 1990.

C.  van Achterberg, ?Revision of the genera Foersteria Szépligeti and Polydegmon Foerster (Hymenoptera : Braconidae), with the description of a new genus?, Zool. Verhandelingen Leiden, vol. 257, pp. 1-32, 1990.