Cacus insularis Ashmead, 1894:227, Lectotype ♀ (USNM, USNMENT01109356), designated by Talamas et al., 2017Talamas, E.J., J. Thompson, A. Cutler, S. Fitzsimmons Schoenberger, A. Cuminale, T. Jung, N.F. Johnson, A.A. Valerio, A.B. Smith, V. Haltermann, E. Alvarez, C. Schwantes, C. Blewer, C. Bodenreider, A. Salzberg, P. Luo, D. Meislin & M.L. Buffington 2017. An online photographic catalog of primary types of Platygastroidea (Hymenoptera) in the National Museum of Natural History, Smithsonian Institution. Journal of Hymenoptera Research 56:187-224.:202. - Ashmead, 1894Ashmead, W.H. 1894. Report on the Parasitic Cynipidae, part of the Braconidae, the Ichneumonidae, the Proctotrypidae, and part of the Chalcididae. - Part II. Journal of the Linnean Society of London (Zoology) 25:108-188. (distribution); Ashmead, 1895Ashmead, W.H. 1895. Report on the parasitic Hymenoptera of the island of Grenada, comprising the families Cynipidae, Ichneumonidae, Braconidae, and Prototypidae. Proc. Zool. Soc. London 1895:742-812. (distribution); Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598. (distribution); Ashmead, 1900Ashmead, W.H. 1900. Report upon the aculeate Hymenoptera of the islands of St. Vincent and Grenada, with additions to the parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies. Transactions of the Entomological Society of London pt. II:207-367. (distribution). - As Oethecoctonus insularis: