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); 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).