Contribution to the taxonomy of the Pseudepipona subgenus Deuterepipona Blüthgen, 1951 (Hymenoptera, Vespidae, Eumeninae) from Central Asia, with the description of four new species.

Four new species are described: Pseudepipona (Deuterepipona) kostylevi Fateryga, sp. nov. (Turkmenistan, Uzbekistan, Kazakhstan), P. (D.) nikolayi Fateryga, sp. nov. (Kazakhstan), P. (D.) popovi Fateryga, sp. nov. (Turkmenistan), and P. (D.) vladimiri Fateryga, sp. nov. (Kazakhstan). A new synonymy is proposed: Pseudepipona (Deuterepipona) superba (Morawitz, 1867) = P. (D.) tricolor Gusenleitner, 1976, syn. nov. Lectotypes are designated for two species: Pseudepipona (Deuterepipona) herzi (Morawitz, 1895) and P. (D.) superba. Two species, both not occurring in the region under study, are transferred to the subgenus Deuterepipona from the nominotypical one: Pseudepipona (Deuterepipona) priesneri Gusenleitner, 1970 and P. (D.) pseudominuta Gusenleitner, 1971. An identification key to all six species of the subgenus Deuterepipona from Central Asia is provided. [ABSTRACT FROM AUTHOR]