Tachysphexaustriacus Kohl, 1892 and T. pompiliformis (Panzer, 1804) (Hymenoptera, Crabronidae) are a complex of fourteen species in Europe and Turkey Author Straka, Jakub text ZooKeys 2016 577 63 123 http://dx.doi.org/10.3897/zookeys.577.7301 journal article http://dx.doi.org/10.3897/zookeys.577.7301 1313-2970-577-63 E323AAB6276D44A19BFBFD08204FA79E Taxon classification Animalia Hymenoptera Crabronidae Tachysphex austriacus Kohl, 1892 Figs 28, 38, 41, 50, 53, 62, 77, 86, 91 Type material. Holotype : ♀, Austria: Wien: Tuerkenschanze , 12.viii.1895, A. Handlirsch lgt. "12.8.95. / Handl. // Austr. inf. / Tuerkenschanz // austriacus / K. / det. Kohl Type", [handwriting, name of collector and word "det." printed]. Holotype in NHMW, examined. Additional material examined. Czech Republic: Boh. centr., Lysa nad Labem env., 1 ♂, 1 ♀, 8. vi. 1950, A. Hoffer lgt., OLML; Mor. mer., Dolni Bojanovice, 1 ♂, 1 ♀, viii. 1942, A. Hoffer lgt., JSPC; Hodonin , 1 ♀, vii. 1942, A. Hoffer lgt., OLML; Germany: Birkenheide env., 1 ♂, 2. vi. 1993, O. Niehuis lgt., JSPC; Ingelheim-nord, Mainz, 1 ♀, 24. vii. 1993, Ch. Schmid-Egger lgt., JSPC; Mallnow, Frankfurt an der Oder 13 km NNW, Brandenburg, 1 ♂, 24. vii. 2008, Ch. Schmid-Egger lgt., CSE; Hungary: Oer Sz. Miklos , Őrtilos Szentmihalyhegy , Somogy, 1 ♀, 21. vi. 1920, Sajo lgt., HNHM; Kecskemet env., 1 ♀, 16. vii. 2006, J. Halada lgt., JSPC; Kecskemet , Nyomas , 1 ♀, 18. vii. 1962, Solymosne lgt., HNHM; Kecskemet , puszta, 1 ♂, 23. 6. 1987, J. Halada, OLML; Oktatasi Koezpont , Fuelophaza env., sand dunes, 1 ♀, 16. vii. 2013, J. Habermannova & J. Straka lgt., JSPC; Oerkeny , puszta, 1 ♀, 16. viii. 2000, J. Straka lgt., 1 ♂, 7. vi. 2013, D.Benda, P.Bogusch & J.Straka lgt., JSPC; Asotthalom Mcs., Szeged, 1 ♀, 3. vii. 1973, L. Moczar lgt., HNHM; Kazakhstan: Matay desert, Sarkand distr., 3 ♀♀, 25. vi. 1995, J. Halada lgt., OLML; Mongolia: Arvaykheer 137 km NE, Oeverkhangay prov., dunes, 4 ♂♂, 8 ♀♀, 2. vii. 2004, 6 ♀♀, 25. vii. 2004, J. Straka lgt., JSPC; Bayankhongor 2 km S, Bayankhongor prov., along Tuey Gol, 1 ♀, 10. vii. 2004, J. Straka lgt., JSPC; Ulaanbaatar 170km W, dunes, 1 ♀, 16. viii. 2007, J. Halada, JSPC; Poland: Kikow , Malopolska Upland, 1 ♂, 2 ♀♀, 14. vii. 1996, R. Dobosz lgt., 9 ♂♂, 2 ♀♀, 19. vi. 1995, W. Żyla lgt., USMB, JSPC; Malkinia , 1 ♀, 14. vii. 1995, R. Dobosz lgt., USMB; Sierakowo, 1 ♂, 21. vi. 2011, P. Olszewski lgt., POTC; Torun-Glinki , 1 ♀, 14. vi. 2011, P. Olszewski lgt., POTC; Torun-poligon artyl., 1 ♀, 14. vi. 2011, P. Olszewski lgt., POTC; Wigry, Wigierski NP, 1 ♀, 5. viii. 2002, W. Żyla lgt., USMB; Slovakia: Chľaba 1.5km SE, 1 ♀, 5. viii. 2013, M. Řiha lgt., MRBC; Chotin , 1 ♂, 12. vii. 1981, P. Tyrner lgt., PTLC, 1 ♀, 1. viii. 1960, 1 ♀, 30. vii. 1970, 1 ♀, 27. vii. 1974, 1♂, 13. vii. 1962, Z. Padr lgt., 1♂, vi. 1977, M. Kocourek lgt., OLML, JSPC; Somotor, 1 ♂, vii. 1960, M. Kocourek lgt., OLML. Diagnosis. Tachysphex austriacus is the type species of the Tachysphex austriacus species subgroup. Tachysphex austriacus Kohl differs from all other species from the subgroup in the following combination of characters: ♂, ♀: gena narrow, conspicuously converging behind compound eyes; scutum and scutellum sparsely punctate, punctures well developed and usually up to 1.5 diameter apart (more than that in some specimens); ventral part of mesopleuron densely punctate, punctures relatively large and well developed in comparison to other species; trochanters densely punctate; ♂: ventral volsellar setae in one line; ♀: clypeal lip with distinct irregular median emargination; clypeal bevel forming slightly convex to flat plate, but the transition between the clypeal basomedian area and the bevel is not angulated; forebasitarsal rake pale, with four apical spines. Geographic Distribution. Austria, Czech Republic, Germany, Hungary, Kazakhstan, Mongolia, Poland and Slovakia. Note. The holotype was redescribed by Straka (2004) .