Harpactus insularis Cresson, 1865:146, ♀. Holotype ♀, Cuba (Dr. J. Gundlach); Alayo, 1973Alayo, P.D. 1973. Catálogo de los Himenopteros de Cuba. Instituto Cubano del libro, La Habana. 1-218.:188, Types (Gundlach, No. 296). - Cresson, 1865Cresson, E.T. 1865. On the Hymenoptera of Cuba. Proceedings of the Entomological Society of Philadelphia 4:200 pp. (distribution); Packard, 1867Packard, A.S. 1867. Revision of the fossorial Hymenoptera of North America. I. Crabronidae and Nyssonidae. Proceedings of the Entomological Society of Philadelphia 6:353-453. (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 Gorytes insularis: - Handlirsch, 1888Handlirsch, A. 1888. Monographie der mit Nysson und Bembex verwandten Grabwespen III. Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Classe 97:316-565. (distribution); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution). - As Hoplisoides insularis: - Alayo, 1976Alayo, P.D. 1976. Introducción al estudio de los Himenópteros de Cuba - Superfamilia Sphecoidea. Academia de Ciencias de Cuba, Instituto de Zoologia, Serie Biologica 67:1-46. (distribution); Bohart, 2000Bohart, R.M. 2000. A review of Gorytini in the Neotropical region (Hymenoptera: Sphecidae: Bembicinae). Contributions on Entomology, International 4:111-259. (distribution); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139. (distribution); Genaro, 2006Genaro, J.A. 2006. Checklist and distribution patterns of apoid wasps (Hymenoptera: Apoidea: Sphecidae and Crabronidae) of Cuba. Zootaxa 1171:47-68. (distribution). - As Psammaecius insularis: - Pate, 1947Pate, V.S.L. 1947. On the Gorytine wasps of the West Indies (Hymenoptera: Sphecidae). Entomological News 58:93-98. (distribution); Alayo, 1969Alayo, P.D. 1969. Estudios sobre los Himenópteros de Cuba. III – Subfamilia Nyssoninae (Familia Sphecidae). Poeyana (Serie A) 59:1-34. (distribution); Alayo, 1973Alayo, P.D. 1973. Catálogo de los Himenopteros de Cuba. Instituto Cubano del libro, La Habana. 1-218. (distribution).