Hydroporus sivrikaya, Fery, Hans & Erman, Ömer Köksal, 2009

Fery, Hans & Erman, Ömer Köksal, 2009, Five new species of the longulus - group of Hydroporus Clairville, 1806 from north-eastern Turkey (Coleoptera: Dytiscidae), Zootaxa 2033, pp. 1-12 : 6-7

Hydroporus sivrikaya sp. n.

( Figs 2 , 13 )

Type locality. Turkey, Rize province, İkizdere district, ca. 8–9 km SE Sivrikaya village, ca. 40.63N 40.79E, altitude ca. 2600 m (locality 5 in Fig. 13 ).

Holotype. 3, " 29.06.2001 TR –Rize prov., İkizdere distr., 8–9 km SE Sivrikaya village, ca. 2600 m ", "spring on left side of road İkizdere–Erzurum, Erman, Ö.K. leg.", " Holotype, Hydroporus sivrikaya sp. n., H. Fery & Ö.K. Erman det. 2009" [red, printed] ( NMW). Paratypes. 5 33, 1 Ƥ, same label data as the holotype. Each paratype is provided with the respective red label ( CHF, CKE).

Differential diagnosis. Pronotal rim in most specimens entirely black, only one specimen with short dark brownish posterior spot. Sides of pronotum less curved, almost straight, but diverging in posterior half, thus, discontinuity between pronotum and elytra still less perceptible than in H. cagrankaya sp. n. Punctation on elytra slightly coarser and denser. Ventral side with gula and genae black; prosternal process almost entirely blackish. Femora, as well as pro- and mesocoxae, distinctly darkened; trochanter, tibiae and tarsi brownish. Antennal segments—except eleventh—not darkened distally, or only very indistinctly so.

Males. Median lobe of aedeagus in ventral view less converging apically, apex very broadly rounded, almost truncate ( Fig. 2 ); in lateral view with tip slightly less pointed.

Females. See remarks under H. cagrankaya sp. n.

Measurements. TL: 3.4–3.6 mm, MW: 1.7–1.85 mm, TL/MW: 1.94–2.00, IO/MP: 0.46–0.48.

Distribution. So far known only from the locus typicus near Sivrikaya in the Rize province, north-eastern Turkey (locality 5 in Fig. 13 ).

Derivatio nominis. The specific name sivrikaya is a noun in apposition and is derived from Sivrikaya , the village which is situated near the locus typicus of the new species.

Figures

FIGURE 13. Distribution of Hydroporus lundbergi sp. n. (1 – 3; see text), H. cagrankaya sp. n. (4), H. sivrikaya sp. n. (5), H. toledoi sp. n. (6), H. artvinensis sp. n. (7), and H. erzurumensis (8 – 14). The map was made by using MS ENCARTA 2000.

FIGURES 1 – 5. Median lobe of aedeagus of: (1) Hydroporus cagrankaya sp. n. (holotype), (2) H. sivrikaya sp. n. (holotype), (3) H. artvinensis sp. n. (holotype), (4) H. toledoi sp. n. (holotype), (5 a, b) H. lundbergi sp. n. (holotype) (the arrow indicates the direction of the " frontal view ", Fig. 5 b)