Hydraena nilguenae (Jäch 1988)

Trizzino, Marco, Carnevali, Lucilla, Felici, Stefano De & Audisio, Paolo, 2013, A revision of Hydraena species of the “ Haenydra ” lineage (Coleoptera, Hydraenidae) , Zootaxa 3607 (1), pp. 1-173 : 33-34

publication ID	https://doi.org/ 10.11646/zootaxa.3607.1.1
publication LSID	lsid:zoobank.org:pub:97967754-52CD-4334-8714-F41C7A63B068
persistent identifier	https://treatment.plazi.org/id/03EFC245-814D-FFB8-FF1D-F8EEA6F9F981
treatment provided by	Felipe
scientific name	Hydraena nilguenae (Jäch 1988)
status

Treatment

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).