New and little-known digger wasps (Hymenoptera: Ampulicidae, Sphecidae Crabronidae) from Russia Author Mokrousov, Mikhail V. 0000-0001-6510-1791 Institute of Biology and Biomedicine at Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod 603950, Russia. sphecid @ inbox. ru; https: // orcid. org / 0000 - 0001 - 6510 - 1791 sphecid@inbox.ru Author Proshchalykin, Maxim Yu. Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of Russian Academy of Sciences, Vladivostok- 22, 690022, Russia. text Zootaxa 2021 2021-04-09 4952 2 314 330 journal article 7329 10.11646/zootaxa.4952.2.6 34c6b1ec-569d-499a-a622-63d2e6d018e8 1175-5326 4674104 0C218676-4CAB-46AB-B806-C67D67CB8C44 Genus Tachytes Panzer, 1806 Tachytes Panzer, 1806: 129 . Type species: Pompilus tricolor of Fabricius, 1798 [= Sphex tricolor Fabricius, 1793 (junior primary homonym of Sphex tricolor Schrank, 1781 ) = Sphex tricoloratus Turton, 1801 = Tachytes obsoletus tricoloratus ( Turton, 1801 ) ], by monotypy. Number of species: World—298, Russia —9.