Hydraena nilguenae (Jäch 1988)

17. Hydraena nilguenae (Jäch 1988) View in CoL

Haenydra nilguenae Jäch 1988b: 769 .

Male genitalia: Fig. 16h View FIGURES 16 ; Female elytral apex: Fig. 16q View FIGURES 16 ; geographic range: Fig. 17 View FIGURE 17 . Type locality: Turkey, Diyarbakir province, Karacadag (“ Karacadag bei Diyarbakir ”: Jäch 1988b) .

Primary types: Holotype at NMW.

Measurements: Length: 1.8–1.9 mm. EL/EW = 1.68; PW/PL = 1.37; PW/EW = 0.86.

Diagnosis: Male habitus nearly as in H. caucasica ( Fig. 16a View FIGURES 16 ) and allies, and in particular almost identical to H. plastica .

Taxonomic position and diagnostic characters: See differential diagnoses of H. caucasica and H. septemlacuum .

Habitat: This species was collected under stones in cold fastflowing streams, above 600 m a.s.l.

Chorotype: ANAS (S Anatolian = Taurian Endemic).

Distribution: AS: TR ( Fig. 17 View FIGURE 17 ).

Up to now, H. nilguenae was known solely from the type locality ( Dyarbakir province, SE Anatolia), where the single male holotype was collected and described by Jäch (1988b). In the present work, two new localities in S Anatolia, with the first female collected, are supplied. See Appendix 2 for all the detailed known localities .

DNA data: No data.

18. Hydraena lazica Janssens 1963

Hydraena ( Haenydra) lazica Janssens 1963: 22 View in CoL .

Male habitus: Fig. 18a View FIGURES 18 ; male genitalia: Fig. 18d View FIGURES 18 ; female elytral apex: Fig. 18l View FIGURES 18 ; geographic range: Fig. 19 View FIGURE 19 .

Type locality: Turkey, Trabzon province, Zigana pass, 2200 m a.s.l. (“Zigana, à 2200 m ”: Janssens 1963) .

Primary types: Holotype at ISNB.

Measurements: Length: 2.0– 2.3 mm. EL/EW = 1.75; PW/PL = 1.50; PW/EW = 0.90.

Diagnosis: Body reddish brown to dark brown. Palps and legs pale reddish brown. Labrum with a V-shaped notch on anterior margin. Clypeus opaque relatively smooth and shiny in male, densely punctured in female. Pronotum relatively wide, sub-hexagonal. Pronotal disc convex, densely punctate near anterior and posterior margin, along midline and at posterior foveae. Elytra elongate, parallel - sided in the proximal half, apically slightly sinuate and acuminate in male, strongly sinuate in female. Elytral margin relatively explanate and long, explanation almost reaching apex ( Figs. 18a,l View FIGURES 18 ). Male meso- and metatibiae moderately dilated in the inner edge of distal third; male metatibiae with a fringe of relatively short setae along mesal face of distal half.

Taxonomic position and diagnostic characters: Easily diagnosed from its closest allies from Turkey, Lebanon and Iran ( H. caucasica complex; Table 1) by the differently shaped elytra ( Figs. 18a,l View FIGURES 18 ), and the shape of male genitalia, characterized by a peculiar distal lobe resembling H. decolor and allies ( Fig. 18d View FIGURES 18 ). Aedeagal flagellum notably shorter than in H. fontiscarsavii .

Habitat: This species usually lives under stones in cold fastflowing streams, between 1500 and 2200 m a.s.l.

Chorotype: ANAN (N Anatolian = Pontic endemic).

Distribution: AS: TR ( Fig. 19 View FIGURE 19 ).

This Turkish species is endemic to NE portion of Pontic chain (see Appendix 2 for all the detailed known localities).

DNA data: For this species, mtDNA data (COI, 16S rDNA, tRNA leu and NAD1) are available in GenBank ( Trizzino et al. 2011b).