- As Ectemnius continuus continuus: - Bitsch & Leclercq, 1993Bitsch, J. & Leclercq, J. 1993. Hyménoptères sphecidae d´Europe Occidentale. Vol. 1 Generalites - Crabroninae. 1-325. (distribution), 171 (distribution, listed); Leclercq, 1993Leclercq, J. 1993. Hymenopteres Sphecides Crabroniens d´ Europe et du Bassin Mediterraneen. Notes fauniques de Gembloux 26:9-54.:25 (listed); Ljubomirov & Yildirim, 2008Ljubomirov, T. & E. Yildirim 2008. . Sofia. 1-316. (distribution).
Crabro 6-maculatus Say, 1824:341, ♀. ♀, Pennsylvania. Synonymized with Ectemnius continuus (Fabricius, 1804) by Pate, 1946Pate, V.S.L. 1946. New pemphilidine wasps, with notes on previously described forms. I. Ectemnius (Hymenoptera: Sphecidae). Notulae Naturae of the Academy of Natural Sciences of Philadelphia 171:1-14.:10. - Fox, 1895Fox, W.J. 1895. The Crabroninae of Boreal America. Transactions of the American Entomological Society 22 (2):129-226. (distribution); Pate, 1946Pate, V.S.L. 1946. New pemphilidine wasps, with notes on previously described forms. I. Ectemnius (Hymenoptera: Sphecidae). Notulae Naturae of the Academy of Natural Sciences of Philadelphia 171:1-14. (distribution); Pate, 1947Pate, V.S.L. 1947. The Pemphilidine wasps of the Caribbees (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 73 (1):1-33.:12 ( listed as synonym of Ectemnius continuus (Fabricius, 1804)); 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 continuus (Fabricius, 1804)).
Crabro fuscitarsis Herrich-Schaeffer, 1841:181 - Bitsch & Leclercq, 1993Bitsch, J. & Leclercq, J. 1993. Hyménoptères sphecidae d´Europe Occidentale. Vol. 1 Generalites - Crabroninae. 1-325.:169 ( listed as synonym of Ectemnius continuus (Fabricius, 1804)); 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 continuus (Fabricius, 1804)).
Crabro vagatus Smith, 1869:208, ♀.Japan. - Bitsch & Leclercq, 1993Bitsch, J. & Leclercq, J. 1993. Hyménoptères sphecidae d´Europe Occidentale. Vol. 1 Generalites - Crabroninae. 1-325.:169 ( listed as synonym of Ectemnius continuus (Fabricius, 1804)); 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 continuus (Fabricius, 1804)).
Crabro granulatus Walker, 1871:26, ♂.Cairo. - 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 continuus (Fabricius, 1804)).
Crabro rugosus-punctatus Taschenberg, 1875:385 - 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 continuus (Fabricius, 1804)). - As Crabro rugoso-punctatus: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution).
Crabro validus De Stefani, 1884:218 - 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 continuus (Fabricius, 1804)).
Crabro vagans Fokker, 1887:xx - 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 continuus (Fabricius, 1804)).
Xylocrabro slossonae Ashmead, 1902:5 Nomen nudum. Synonymized with Ectemnius continuus (Fabricius, 1804) by Pate, 1946Pate, V.S.L. 1946. New pemphilidine wasps, with notes on previously described forms. I. Ectemnius (Hymenoptera: Sphecidae). Notulae Naturae of the Academy of Natural Sciences of Philadelphia 171:1-14.:10. - 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 continuus (Fabricius, 1804)).Xylocrabro slossonae Ashmead, 1902:5 Nomen nudum. Synonymized with Ectemnius continuus (Fabricius, 1804) by Pate, 1946Pate, V.S.L. 1946. New pemphilidine wasps, with notes on previously described forms. I. Ectemnius (Hymenoptera: Sphecidae). Notulae Naturae of the Academy of Natural Sciences of Philadelphia 171:1-14.:10. - 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 continuus (Fabricius, 1804)).
Crabro sayi Cockerell, 1910:61, no description Replacement name for Crabro 6-maculatus Say, 1824 by Cockerell, 1910Cockerell, T.D.A. 1910. The fossil Crabronidae. The Entomologist 43:60-61.:61 (not Olivier, 1791). Synonymized with Ectemnius continuus (Fabricius, 1804) by Pate, 1946Pate, V.S.L. 1946. New pemphilidine wasps, with notes on previously described forms. I. Ectemnius (Hymenoptera: Sphecidae). Notulae Naturae of the Academy of Natural Sciences of Philadelphia 171:1-14.:10. - Cockerell, 1910Cockerell, T.D.A. 1910. The fossil Crabronidae. The Entomologist 43:60-61. (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 continuus (Fabricius, 1804)).
Crabro bisexmaculatus Viereck in Smith, 1910:681 Synonymized with Ectemnius continuus (Fabricius, 1804) by Pate, 1946Pate, V.S.L. 1946. New pemphilidine wasps, with notes on previously described forms. I. Ectemnius (Hymenoptera: Sphecidae). Notulae Naturae of the Academy of Natural Sciences of Philadelphia 171:1-14.:10. - 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 continuus (Fabricius, 1804)).
Solenius giffardi Rohwer, 1917:242, ♂♀. Allotype ♂, Alameda County, California, July, 1907 (U.S.N.M., leg. W.M. Giffard); Holotype ♀, Alameda County, California, July, 1907 (U.S.N.M., No. 20156, leg. W.M. Giffard). Synonymized with Ectemnius continuus (Fabricius, 1804) by Pate, 1946Pate, V.S.L. 1946. New pemphilidine wasps, with notes on previously described forms. I. Ectemnius (Hymenoptera: Sphecidae). Notulae Naturae of the Academy of Natural Sciences of Philadelphia 171:1-14.:10. - 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 continuus (Fabricius, 1804)).