Neotiphia acuta Malloch, 1918:9, ♂. Holotype ♂, Texas (Coll. Illinois State Natural History Survey); Allen, 1935Allen, H.W. 1935. North American wasps of the genus Neotiphia (Hymenoptera: Tiphiidae). Transactions of the American Entomological Society 61:53-65.:61, Allotype ♀ (I.N.H.S.); Allen, 1935Allen, H.W. 1935. North American wasps of the genus Neotiphia (Hymenoptera: Tiphiidae). Transactions of the American Entomological Society 61:53-65.:61, Type ♂ (I.N.H.S.); Allen & Krombein, 1963Allen, H.W. & K.V. Krombein 1963. A revision of Neotiphia Malloch and Krombeinia Pate (Hymenoptera: Tiphiidae). Transactions of the American Entomological Society 89 (3/4):211-275.:260, Lectoallotype ♂ (INHS); Allen & Krombein, 1963Allen, H.W. & K.V. Krombein 1963. A revision of Neotiphia Malloch and Krombeinia Pate (Hymenoptera: Tiphiidae). Transactions of the American Entomological Society 89 (3/4):211-275.:260, Lectotype ♂ (INHS). - Allen, 1966Allen, H.W. 1966. A revision of the Tiphiinae (Hymenoptera: Tiphiidae) of Eastern North America. Transactions of the American Entomological Society 92:231-356. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution).