Crabro advena Smith, 1856, Lectotype ♀ (BMNH, no. 21.990), designated by Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:252. - Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287. (distribution); Leclercq, 2008Leclercq, J. 2008. Hyménoptères Crabroniens d'Amérique du genre Crabro Fabricius 1775 (Hymenoptera: Crabronidae Crabroninae). Notes fauniques de Gembloux 61 (1-2):75-84. (distribution). - As Crabro advenus: - Fox, 1895Fox, W.J. 1895. The Crabroninae of Boreal America. Transactions of the American Entomological Society 22 (2):129-226. (distribution); Evans, 1959Evans, H.E. 1959. Studies on the larvae of digger wasps (Hymenoptera, Sphecidae). Part V: Conclusion. Transactions of the American Entomological Society 85 (2):137-191. (distribution).
Crabro succinctus Cresson, 1865:479, Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:252, Lectotype ♀ (ANSP). - Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:252 ( listed as synonym of Crabro advena Smith, 1856).
Thyreopus pegasus Packard, 1867:362 - Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:252 ( listed as synonym of Crabro advena Smith, 1856).
Thyreopus signifer Packard, 1867:361, Lectotype ♀ (MCZ), designated by Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:252. - Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:252 ( listed as synonym of Crabro advena Smith, 1856). - As Crabro signifer: - Fox, 1895Fox, W.J. 1895. The Crabroninae of Boreal America. Transactions of the American Entomological Society 22 (2):129-226. (distribution).
Crabro discretus Fox, 1895:165, ♀. Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:253, Lectotype ♀ (USNM). - Fox, 1895Fox, W.J. 1895. The Crabroninae of Boreal America. Transactions of the American Entomological Society 22 (2):129-226. (distribution); Krombein, 1958Krombein, K.V. 1958. Additions during 1956 and 1957 to the wasp fauna of Lost River State Park, West Virginia, with biological notes and descriptions of new species (Hymenoptera, Aculeata). Proceedings of the Entomological Society of Washington 60 (2):49-64. (distribution); Bohart, 1976Bohart, R.M. 1976. A review of the Nearctic species of Crabro (Hymenoptera: Sphecidae). Transactions of the American Entomological Society 102 (2):229-287.:253 ( listed as synonym of Crabro advena Smith, 1856).