Hyphydrus anatolicus Guignot, 1957

Bergsten, Johannes, Weingartner, Elisabeth & Hajek, Jiri, 2017, Species delimitation of the Hyphydrusovatus complex in western Palaearctic with an update of species distributions (Coleoptera, Dytiscidae), ZooKeys 678, pp. 73-96 : 74-75

Hyphydrus anatolicus Guignot, 1957

Hyphydrus anatolicus Guignot, 1957: 91 (orig. descr.; type locality: “Angora” [Ankara, Turkey]).

Hyphydrus carrarai Sanfilippo, 1963: 77 (orig. descr.; type locality: "Macchia di Migliarino, Torre del Lago (Toscana)" [Italy]); synonymy by Pederzani 1976: 166.

Hyphydrus sanctus : Biström 1982: 39 (partim, misidentification).

Published records.

Bosnia and Hercegovina: Biström (1982: 39 as H. sanctus ). Croatia: Guéorguiev (1971: 8 as H. carrarai ); Biström (1982: 39 as H. sanctus ); Ádám (1992: 194 as Hyphydrus sanctus ); Temunović et al. (2007: 17); Krčmar (2014: 20). Greece: Biström (1982: 39 as H. sanctus ); Wewalka (1984: 131). Hungary: Ádám (1992: 194 as H. sanctus ); Csabai et al. (1999: 148 as H. sanctus ); Móra et al. (2004: 153); Csabai and Nosek (2006: 73); Kálmán et al. (2008: 76); Molnár (2008:110); Sóos et al. (2008: 223); Lőkkös (2010:161). Italy: Sanfilippo (1963: 77 as H. carrarai ); Angelini (1972: 182 as H. carrarai ; 1984: 54); Pederzani (1976: 166); Biström (1982: 39 as H. sanctus ); Rocchi (1991: 68); Pederzani & Campadelli (1996: 21); Nardi (1997: 132); Bordoni et al. (2006: 87). Macedonia: Biström (1982: 39 as H. sanctus ). Montenegro: Scheers (2016: 209). Russia: Biström (1982: 39 as H. sanctus ). Serbia: Mesaroš (2015: 50). Turkey: Guignot (1957: 91).

Material examined.

Greece: 2♂♂, Ionian Islands, Kerkyra, Chalikiopoulos [lagoon], 22.iv.1935 (NHMW); 1♂, Eastern Macedonia and Thrace, Évros Distr., plain of Évros river, 26.vii.1988, M. Jäch leg. (NHMW); 1♀, Central Macedonia, Khalkidhiki Distr., Sithonia, 2 km S of Kalamítsion, 12.viii.2000, J. Hotový leg. (NMPC); 5♂♂ 5♀♀, NW Peloponnese, 3 km S Kalogria, 38.1213N, 21.3810E, ca. 3 m, shallow seasonal swamp, 17.v.2010, H. Fery & L. Hendrich leg. (NMPC). Hungary: 1♂ 1♀, Hungary 46 36 (BMNH); 1♀, Bács-Kiskun, Kiskunmajsa env., 11.viii.1999, J. Hájek leg. (NMPC). Montenegro: 1♂, Vranjina env., Skadarsko jezero, 20.ix.2001, J. Hájek leg. (NMPC). Russia: 1♀, Orenburg reg., Totskoye, 1917, Š. Jureček leg. (NMPC); 2♂♂ 2♀♀, Samara, K. Fausta leg. (ZMAS); 1♀, Stavropol reg., Kuma river, 20.iv.1911 (ZMAS); 1♂ 2♀♀, Volgograd reg., 2 km south of Zryanin village, 48°36 ‘60‘‘ N, 43°10 ‘10‘‘ E, small lakes near Liska river, incl silty open bay with grasses, Alisma and Juncus , 29-30.iv.2002, J. Bergsten & A. Nilsson leg. (NHRS); 1♂ 1♀, Volgograd reg., Archeda-Don rivers alluvial sandy plain, 16 km ESE of Terkin village, 49.6861N, 43.3333E, different lakes, grassy ponds, fens and stream, 2-3.v.2002, J. Bergsten & A. Nilsson leg. (NHRS); 3♂♂ 2♀♀, Volgograd reg., Kretskiy, 48.6083N, 44.7061E, river-arm, newly flooded grassland, 5.v.2002, J. Bergsten & A. Nilsson leg. (NHRS). Turkey: 2 spec., Aydin vil. [= province], S of Aydin, ditch, 4.iv.14987, H. Fery leg. (HFCB); 4♂♂ 1♀, Muğla vil. [= province], Köyçeğiz, 27.v.1991, S. Schödl leg. (NHMW, NMPC). Slovakia: 1♂, 1 km N of Tvrdošovce, 24.iv.2000, T. Kopecký leg. (NMPC). Ukraine: 1♂, Kherson distr., monast. Korsunskij, cursus inf. fl. Dnjepr, 3.vi.1927, S. Medvedev leg. (ex coll. Zakharenko, ZMAS).

Diagnosis.

Habitus as depicted in Figs 4c, 5c. Clypeus with anterior margin rounded (Fig. 6a). Reticulation of dorsal surface confined to head, more distinct and impressed anteriorly. Punctation of head fine, visible on whole surface; punctures sparse, distance between them usually equal or bigger than their diameter (Fig. 6a). Punctation of pronotum double, fine, distance between larger punctures bigger than their diameter. Punctation of elytra double, diameter of small puncture less than half of diameter of large punctures; distance between large punctures bigger than their diameter. Epipleura smooth with fine punctures. Metatibia with sinuous outer margin.

Male. Longer metatibial spur long, nearly as long as metatarsomere I-II combined (Fig. 7a); spur bisinuate with only indistinct serration basally (Fig. 7a). Male genitalia as in Fig. 8 a–d, median lobe in ventral view slightly narrowing from base to apex.

Female. Both shiny and matt forms known of females of H. anatolicus . Shiny form agreeing well with male; matt form with whole surface densely reticulated, meshes somewhat elongate on elytra. Large punctures well visible, small punctures indistinct among reticulation. Longer tibial spur shorter than in male; broad and with serration in basal two thirds, narrowed, slightly curved and without serration in apical third. Female genitalia as in Fig. 8 e–g.

Habitat.

The species inhabits various types of standing water, predominantly densely vegetated pools, ditches and small ponds. H. anatolicus tolerates also saline habitats.

Distribution.

The species is distributed in the Eastern Mediterranean and in south-eastern Europe. It occurs in Italy, southernmost Slovakia, Hungary, the Balkan Peninsula, Turkey, southern Ukraine and Russia up to latitude 55° and east to the Ural Mountains (Fig. 9). First record from Slovakia and Ukraine.