N.  Johansson and Cederberg, B., ?Review of the Swedish species of Ophion (Hymenoptera: Ichneumonidae: Ophioninae), with the description of 18 new species and an illustrated key to Swedish species?, 2019.

G. R.  Broad, ?Identification key to the subfamilies of Ichneumonidae (Hymenoptera)?, 2015.

G. R.  Broad, ?Key to species of Netelia in Britain and Ireland?, 2015.

G. R.  Broad and Shaw, M. R., ?The British species of Enicospilus (Hymenoptera: Ichneumonidae: Ophioninae)?, European Journal of TaxonomyEuropean Journal of Taxonomy, vol. 187, pp. 1-31, 2016.

J. P.  Brock, ?A systematic study of the genus Ophion in Britain (Hymenoptera, Ichneumonidae)?, Tijdschrift voor EntomologieTijdschrift voor Entomologie, vol. 125, pp. 57-97, 1982.

G.  Delrio, ?Prélude à une révision des Ichneumonides Netelia Gray ouest-paléarctiques?, Bulletin de la Société Entomologique de MulhouseBulletin de la Société Entomologique de Mulhouse, vol. 1971, pp. 67-70, 1971.

G.  Delrio, ?Révision des espèces ouest-paléarctiques du genre Netelia Gray (Hym., Ichneumonidae)?, Studi Sassaresi sez. III.- Annali della Facolta di Agraria dell'Università di SassariStudi Sassaresi sez. III.- Annali della Facolta di Agraria dell'Università di Sassari, vol. 23, pp. 1-126, 1975.

I. D.  Gauld, ?Some records of Ichneumonoidea (Hym.) collected at light, during autumn 1969 in Perthshire and southern Inverness-shire, including a species new to Britain?, Entomologist's GazetteEntomologist's Gazette, vol. 21, pp. 282-284, 1970.

I. D.  Gauld, ?Notes on the British Ophionini (Hym., Ichneumonidae) including a provisional key to species?, Entomologist's GazetteEntomologist's Gazette, vol. 24, pp. 55-65, 1973.

I. D.  Gauld, ?Further notes on the British Ophionini (Hym., Ichneumonidae)?, Entomologist's GazetteEntomologist's Gazette, vol. 25, pp. 147-148, 1974.

I. D.  Gauld, ?Notes on the British Ophioninae (Hym., Ichneumonidae). Part 3. The identity of the species described by Morley, 1915 and Thomson, 1888 and a checklist of British species?, Entomologist's GazetteEntomologist's Gazette, vol. 27, pp. 113-117, 1976.

I. D.  Gauld, ?Notes on the British Ophioninae (Hymenoptera, Ichneumonidae). Part 4. A revised key to species of the genus Ophion Fabricius?, Entomologist's GazetteEntomologist's Gazette, vol. 29, pp. 145-149, 1978.

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

K.  Horstmann, ?Die paläarktischen Arten der Gattungen Eremotylus Förster, 1869, und Simophion Cushman, 1947 (Hymenoptera, Ichneumonidae)?, EntomofaunaEntomofauna, vol. 2, pp. 415-432, 1981.

M. R.  Shaw, ?Species of Mesochorus (Hymenoptera: Ichneumonidae) reared as hyperparasitoids of Lepidoptera via koinobiont ectoparasitoid Tryphoninae (Ichneumonidae)?, Entomologist's GazetteEntomologist's Gazette, vol. 44, pp. 181-182, 1993.

M. R.  Shaw, ?Interactions between adults of some species of Netelia Gray (Hymenoptera: Ichneumonidae: Tryphoninae) and their caterpillar hosts (Lepidoptera)?, Journal of Hymenoptera ResearchJournal of Hymenoptera Research, vol. 10, pp. 101-111, 2001.

G. R.  Broad, Schnee, H., and Shaw, M. R., ?The hosts of Ophion luteus (Linnaeus) (Hymenoptera, Ichneumonidae, Ophioninae) in Europe?, Journal of Hymenoptera ResearchJournal of Hymenoptera Research, vol. 46, pp. 115-125, 2015.