Prosopis gracilicornis Morawitz, 1867: 56, ♀, ♂ (type locality: “Oberengadin” [Switzerland]); Proshchalykin & Dathe 2012: 14.
Material examined. Kemerovo Province: 2 ♀, Tisul'skii distr., Makarakskii, 7.VII. 2007, S. Luzyanin (KSU); 2 ♀, 1 ♂, Krapivinskii distr., Azhendarovo, 2–3.VIII. 2009, SNY (KSU); 3 ♀, Tashtagolskii distr., Ust'-Anzas, 3.VIII. 2010, SNY (KSU); Altaiskiy Territory: 4 ♀, 1 ♂, Biisk, 6.VII. 2007, SAB (ZISP); 2 ♀, 1 ♂, 30 km S Kur’ya, Savvushka, 31.VII – 1.VIII. 2007, SAB (ZISP); 1 ♂, 40 km SSE Zmeinogorsk, Novoaltaiskoe, 6.VIII. 2007, SAB (ZISP); Altai Republic: 1 ♀, Turochakskii distr., Yailo, 5.IX. 1998, E. Korneva (ZISP); 1 ♀, Chemal, 19–21.VII. 2007, SAB (ZISP); 4 ♀, NW edge of the Teletskoe Lake, Artybash, 24.VII. 2007, SAB (ZISP); Khakassia Republic: 11 ♀, 50 km NWW Shira, Chernyi Iyus River, 4.VII. 2014, ASL, MYP, VML (IBSS); Tyva Republic: 1 ♂, 13 km SW Samagaltai, Dyttyg-Khem River, 8–11.VII. 2013, MP, VL (IBSS); 1 ♀, 27 km SSW Erzin, Tore-Khol Lake, 11–12.VII. 2014, ASL, MYP, VML (IBSS); 2 ♂, 23 km E Samagaltai, Shuurmak River, 19.VII. 2014, ASL, MYP, VML (IBSS).
Distribution in Siberia. Tomsk Province, Novosibirsk Province, Kemerovo Province, *Altaiskiy Territory, Altai Republic, Khakassia Republic, *Tyva Republic, Buryatia Republic, Yakutia, Zabaikalskiy Territory. General distribution. Transpalaearctic, from France to Russian Far East.