Mutilla bitæniata Spinola, 1841:91, ♀. Mickel, 1938Mickel, C.E. 1938. The Neotropical mutilid wasps of the genus Timulla Ashmead (Hymenoptera:Mutillidae). Transactions of the Royal Entomological Society of London 87 (22):529-680.:596, Lectotype ♀ (Spinola collection, Torino, Italy). - Smith, 1855Smith, F. 1855. Catalogue of Hymenopterous Insects in the collection of the British Museum. Part III, Mutillidae and Pompilidae. :203 pp, 5 pl. (distribution); Gerstäcker, 1874Gerstäcker, A. 1874. Mutillarum Americae meridionalis indigenarum synopsis systematica et synonymica. (Fortsetzung von p. 77.). Archiv für Naturgeschichte 40:299-328. (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 Timulla bitaeniata: - Mickel, 1938Mickel, C.E. 1938. The Neotropical mutilid wasps of the genus Timulla Ashmead (Hymenoptera:Mutillidae). Transactions of the Royal Entomological Society of London 87 (22):529-680. (distribution); Mickel, 1952Mickel, C.E. 1952. The Mutillidae (Wasps) of British Guiana. Zoologica (New York) 37 (3):105-150. (distribution); Callan, 1990Callan, E.Mc C. 1990. Mutillidae of Trinidad. Sphecos 19:21-22. (distribution); Starr & Hook, 2003Starr, C.K. & Hook, A.W. 2003. The aculeate Hymenoptera of Trinidad, West Indies. Occasional Papers o the Department of Life Sciences, University of the West Indies 12:1-31. (distribution); Lo Cascio, 2015Lo Cascio, P. 2015. Worldwide checklist of the island mutillid wasps (Hymenoptera Mutillidae). biodiversity Journal 6 (2):529-592. (distribution); Pagliano et al., 2020Pagliano G., D.J. Brothers, R. Cambra, A.S. Lelej, P. Lo Cascio, M.M. Palmerini, P.L. Scaramozzino, K.A. Williams & M. Romano 2020. Checklist of names in Mutillidae (Hymenoptera), with illustrations of selected species. Bolletino del Museo Regionale di Scienze naturali Torino 36 (1-2):5-425. (distribution).
Timulla byblis Mickel, 1937:172, Mickel, 1938Mickel, C.E. 1938. The Neotropical mutilid wasps of the genus Timulla Ashmead (Hymenoptera:Mutillidae). Transactions of the Royal Entomological Society of London 87 (22):529-680.:566, Holotype ♂ (University of Minnesota collection). - Mickel, 1938Mickel, C.E. 1938. The Neotropical mutilid wasps of the genus Timulla Ashmead (Hymenoptera:Mutillidae). Transactions of the Royal Entomological Society of London 87 (22):529-680. (distribution); Mickel, 1952Mickel, C.E. 1952. The Mutillidae (Wasps) of British Guiana. Zoologica (New York) 37 (3):105-150.:107 ( listed as synonym of Timulla bitaeniata (Spinola, 1841)); Lo Cascio, 2015Lo Cascio, P. 2015. Worldwide checklist of the island mutillid wasps (Hymenoptera Mutillidae). biodiversity Journal 6 (2):529-592. (distribution); Pagliano et al., 2020Pagliano G., D.J. Brothers, R. Cambra, A.S. Lelej, P. Lo Cascio, M.M. Palmerini, P.L. Scaramozzino, K.A. Williams & M. Romano 2020. Checklist of names in Mutillidae (Hymenoptera), with illustrations of selected species. Bolletino del Museo Regionale di Scienze naturali Torino 36 (1-2):5-425.:263 ( listed as synonym of Timulla bitaeniata (Spinola, 1841)).