Crabro carinatus Smith, 1873:103 - 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 Ectemnius carinatus: - Callan, 1991Callan, E.Mc C. 1991. Sphecidae of Trinidad. III. Crabroninae, Nyssoninae and Philanthinae. Sphecos 21:8-12. (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); 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); Leclercq, 2007Leclercq, J. 2007. Hyménoptères Crabroniens des Amériques du genre Ectemnius Dahlbom 1845 (Hymenoptera: Crabronidae Crabronini). Notes fauniques de Gembloux 60 (4):163-177. (distribution); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution); Silvestre et al., 2014Silvestre, R., M.F. Demétrio, B.M. Trad, F. Varussa & O. Lima 2014. Diversity and distribution of Hymenoptera Aculeata in Midwestern Brazilian dry forests. In: Greer, F.E. (Ed.). Dry Forests. 29-80. (distribution); Nava-Bolaños & Osorio-Olvera, 2022Nava-Bolaños, A. & L. Osorio-Olvera 2022. Estado del arte del conocimiento de biodiversidad de los polinizadores de México. Revista Mexicana de Biodiversidad 93:1-77. (distribution).
Crabro maculicornis Taschenberg, 1875:384 - 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.:27 ( listed as synonym of Ectemnius carinatus (Smith, 1873)).
Crabro saxatilis Cameron, 1891:142, ♀. ♀, Mexico, Atoyac in Vera Cruz (leg. H.H. Smith); ♀, Mexico, Temax in North Yucatan (leg. Gaumer). - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:142 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (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.:27 ( listed as synonym of Ectemnius carinatus (Smith, 1873)). - As Ectemnius saxatilis: - 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).
Ectemnius domingensis bahiacus Leclercq, 1950:206, ♀.Bahia (Brésil), 1913 (Muséum d'Histoire naturelle, Paris, leg. P. Serre). - 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.:27 ( listed as synonym of Ectemnius carinatus (Smith, 1873)).
Ectemnius domingensis capricornicus Leclercq, 1950:206, ♀.République Argentine, 1919 (Institut Royal des Sciences naturelles de Belgique). - 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.:27 ( listed as synonym of Ectemnius carinatus (Smith, 1873)).
Ectemnius domingensis cordillierae Leclercq, 1950:207, ♀.Napo (République de l'Equateur), VIII-IX. 1930 (Muséum d'Histoire naturelle, Paris, leg. R. Benoist). - 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.:27 ( listed as synonym of Ectemnius carinatus (Smith, 1873)).
Ectemnius esterensis Leclercq, 1950:209, ♂.environs d'Icano, bords du Rio Salado (République Argentine), XI.1909 (Muséum d'Histoire naturelle, Paris, leg. E.R. Wagner). - 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.:27 ( listed as synonym of Ectemnius carinatus (Smith, 1873)).
Ectemnius domingensis riojacus Leclercq, 1950:207, ♀.La Rioja (Argentine), 1919 (Muséum d'Histoire naturelle, Paris, leg. J. de Gaulle).