Bracon humilis Nees, 1812:19 - As Blacus humilis: - Achterberg, 1976Achterberg, C. van 1976. A revision of the tribus Blacini (Hymenoptera, Braconidae, Helconinae). Tijdschrift voor Entomologie 118:159-322. (distribution); Achterberg, 1988Achterberg, C. van 1988. Revision of the subfamily Blacinae Foerster (Hymenoptera, Braconidae). Zoologische Verhandelingen Leiden 249:3-324. (distribution); Sánchez-García et al., 2003Sánchez-García, J.A., R.A. Wharton, J. Romero-Nápoles, A. González-Hernández, V. López-Martínez, A. Equihua-Martínez, H. González-Hernández & J.L. Carrillo-Sánchez 2003. Description of a new species of Blacus Nees (Hymenoptera: Braconidae) from Mexico, utilizing characters of the male external genitalia. The Pan Pacific Entomologist 79 (2):135-144. (distribution); Coronado et al., 2004Coronado Blanco, J.M., E. Ruíz Cancino & S.E. Varela Fuentes 2004. Adenda a Braconidae (Hymenoptera). In: Bousquets, J.L., J.J. Morrone, O.Y. Ordóñez & I.V. Fernández (Ed.). Biodiversidad, Taxonomía y Biogeografía de artrópodos de México: Hacia una síntesis de su conocimiento. Volumen IV. 713-720. (distribution); Coronado-Blanco, 2013Coronado Blanco, J.M. 2013. La familia Braconidae (Hymenoptera) en México. Entomología mexicana 12 (1):31-46. (distribution).
Blacus trivialis Haliday, 1835:122, Lectotype ♀ (NMI), designated by Achterberg, 1997Achterberg, C. van 1997. Revision of the Haliday collection of Braconidae (Hymenoptera). Zoologische Verhandelingen Leiden 314:1-115.:85. - Achterberg, 1976Achterberg, C. van 1976. A revision of the tribus Blacini (Hymenoptera, Braconidae, Helconinae). Tijdschrift voor Entomologie 118:159-322.:235 ( listed as synonym of Blacus humilis (Nees, 1812)); Achterberg, 1988Achterberg, C. van 1988. Revision of the subfamily Blacinae Foerster (Hymenoptera, Braconidae). Zoologische Verhandelingen Leiden 249:3-324.:66 ( listed as synonym of Blacus humilis (Nees, 1812)); Achterberg, 1997Achterberg, C. van 1997. Revision of the Haliday collection of Braconidae (Hymenoptera). Zoologische Verhandelingen Leiden 314:1-115.:85 ( listed as synonym of Blacus humilis (Nees, 1812)).
Blacus wesmaeli Ruthe, 1861:146 Synonymized with Blacus humilis (Nees, 1812) by Achterberg, 1988Achterberg, C. van 1988. Revision of the subfamily Blacinae Foerster (Hymenoptera, Braconidae). Zoologische Verhandelingen Leiden 249:3-324.:66.