I. D.  Gauld, ?An analysis of the classification of the Ophion genus-group (Ichneumonidae)?, Systematic Entomology, vol. 5 [1980], pp. 59-82, 1979.

M. R.  Shaw, ?Rogas pulchripes (Wesmael) (Hymenoptera: Braconidae) and other parasites of arboreal Acronicta species (Lepidoptera: Noctuidae) at Chat Moss, Manchester?, Entomologist's GazetteEntomologist's Gazette, vol. 30, pp. 291-294, 1979.

C.  van Achterberg, ?A revision of the subfamily Zelinae auct. (Hymenoptera, Braconidae)?, Tijdschrift voor EntomologieTijdschrift voor Entomologie, vol. 122, pp. 241-479, 1979.