BioStor
 | Notes on British Ichneumoninae with descriptions of new species (Hym. Ichneumonidae) (1953) Bulletin of The British Museum (Natural History) Entomology 3(4): 103-176 |
 | On the Type Species of Förster's genera (Hymenoptera, Ichneumonidae) J F Perkins (1962) Bulletin of the British Museum (Natural History), Entomology 11: 385-483 |
 | On the type species of Foerster's genera (Hymenoptera: Ichneumonidae) J F Perkins (1962) Bulletin of The British Museum (Natural History) Entomology 11(8): 383-483 |
 | Bemerkungen uber die Ichneumoniden der Alpen mit einigen Neubeschreibungen (Hymenoptera, Ichneumonidae) (1985) Nachrichtenblatt der Bayerischen Entomologen 34: 40-47 |