A cladistic analysis of the digger wasp subfamily Bembicinae based on morphological characters is presented. The underlying data matrix comprises 83 terminal taxa (coded on genus-level) and 64 morphological characters. The resulting strict consensus tree was used as the basis for a revised tribal and subtribal classification of the Bembicinae. Based on a previously published classification, we herewith propose a change: the tribe Heliocausini Handlirsch 1925, stat. resurr. (composed of Acanthocausus Fritz & Toro 1977, Heliocausus Kohl 1892, and Tiguipa Fritz & Toro 1976) is separated from Bembicini Latreille 1802. Four tribes are recognized within the subfamily Bembicinae and seven subtribes within the tribe Gorytini and two subtribes in the tribe Nyssonini, based on the present cladistic analysis.The subtribe Nurseina Nemkov & Lelej, subtrib. nov. (comprising of Nippononysson Yasumatsu & Maidl 1936 and Nursea Cameron 1902) is separated from other genera in the tribe Nyssonini Latreille 1804. An new identification key to the genera of the Bembicinae is provided.

Ten species of Didineis Wesmael 1852 are recorded from Russia and adjacent territories. The new synonymy (valid name listed first) is established for Didineis bactriana Gussakovskij 1937 = D. ogloblini Gussakovskij 1937, D. clavimana Gussakovskij 1937 = D. turanica Gussakovskij 1937, and D. lunicornis (Fabricius 1798) = Didineis ruthenica Gussakovskij 1937. The number of valid species-group taxa in the genus Didineis is reduced to 25. The lectotypes are designated for four species: Didineis bactriana Gussakovskij 1937, D. botsharnikovi Gussakovskij 1937, D. clavimana Gussakovskij 1937, D. ruthenica Gussakovskij 1937. An original key to the species is provided.

A cladistic analysis of the digger wasp tribe Bembicini based on morphological characters is presented. The underlying data matrix comprises 64 terminal taxa (coded on genus-level) and 54 morphological characters. The resulting strict consensus tree was used as the basis for a revised subtribal classification of the Bembicini. Based on a previously published classification, we herewith propose a number of changes. The subtribe Spheciina Nemkov and Ohl, subtrib. nov. (comprising Ammatomus A. Costa 1859, Kohlia Handlirsch 1895, Sphecius Dahlbom 1843, and Tanyoprymnus Cameron 1905) is removed from Handlirschiina Nemkov and Lelej 1996. The subtribe Stictiellina Bohart and Horning 1971, stat. resurr. (composed of Chilostictia Gillaspy 1983, Glenostictia Gillaspy in Gillaspy, Evans, and Lin 1962, Microstictia Gillaspy 1963, Steniolia Say 1837, Stictiella J. Parker 1917, and Xerostictia Gillaspy 1963) is separated from Bembicina Latreille 1802. The subtribe Argogorytina Nemkov and Lelej 1996 (Argogorytes Ashmead 1899, Neogorytes Bohart in Bohart and Menke 1976, Paraphilanthus Vardy 1995) is synonymized with Exeirina Dalla Torre 1897, syn. nov. Finally, the subtribe Trichogorytina Nemkov and Pulawski 2009 (genus Trichogorytes Rohwer 1912 only) is synonymized with Gorytina Lepeletier de Saint Fargeau 1845, syn. nov. An updated identification key to the subtribes of the Bembicini is provided.

Based on a cladistic analysis of the digger wasp subtribe Gorytina, the subtribes Argogorytina Nemkov and Lelej 1996, stat. resurr. (consisting of Argogorytes Ashmead 1899, Neogorytes Bohart in Bohart and Menke 1976, and Pterygorytes Bohart 1967), and Trichogorytina, subtrib. nov. (genus Trichogorytes Rohwer 1912 only) are removed from Gorytina. The genus Pterygorytes Bohart 1967 is transferred to Handlirschiina. New generic synonyms are: Pseudoplisus Ashmead 1899, and Leiogorytes Bohart 2000 = Gorytes Latreille 1805; and Malaygorytes Nemkov 1999 = Argogorytes Ashmead 1899. Thirteen species originally described in Pseudoplisus are transferred to Gorytes (new comb.): P. butleri Bohart 1969, P. californicus Bohart 1969, P. catalinae Bohart 1969, P. claripennis Bohart 1969, P. erugatus Bohart 1969, P. flavidulus Bohart 1969, P. hadrus Bohart 1969, P. imperialis Bohart 1969, P. nigricomus Bohart 1969, P. ocellatus Bohart 1969, P. samiatus Bohart 1969, P. willcoxi Ohl 2009, and P. tanythrix Bohart 1969. Also transferred to Gorytes (new comb.) are Leiogorytes guerrero Bohart 2000, Arpactus nyasicus R. Turner, 1915 and the following twelve species originally described in Gorytes but currently placed in Pseudoplisus: G. abdominalis Cresson 1865, G. aequalis Handlirsch 1888, G. divisus F. Smith 1856, G. effugiens Brauns 1911, G. fasciatus W. Fox 1896, G. montanus Cameron 1890, G. natalensis F. Smith 1856, G. ranosahae Arnold 1945, G. rubiginosus Handlirsch 1888, G. rufomaculatus W. Fox 1896, G. smithii Cresson 1880, and G. venustus Cresson 1865. Malaygorytes konishii (Nemkov 1999) is transferred to Argogorytes (new comb.). Updated diagnoses of Gorytes and Argogorytes are provided.

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