Hydroporus anatolicus koksali, Hájek & Fikácek, 2010

Hájek, Jirí & Fikácek, Martin, 2010, Taxonomic revision of the Hydroporus bodemeyeri species complex (Coleoptera: Dytiscidae) with a geometric morphometric analysis of body shape within the group, Journal of Natural History 44 (27 - 28), pp. 1631-1657 : 1635-1638

Hydroporus anatolicus koksali ssp. nov.

Hydroporus anatolicus: Erman et al. 2007: 31 (distribution); Darilmaz and Kiyak 2009: 1614 (catalogue; partim.).

Type locality. Turkey, Artvin prov., 20 km West Borçka, Cankurtaran Geçidi [pass], ca. 41°24′ N, 041°32′ E .

Type material. Holotype male ( NMPC): “ TURKEY, Artvin prov., / 20 km W Borçka, / CANKURTARAN GEÇIDI [pass], / Ji r í Hájek & Jan R 8 ži C ka leg. [printed] // 29.–30.VI. 2004, 730– 775 m, / 41°23.7′N 041°32.0′E – / 41°24.3′N 041°31.9′E, / margin of deciduous forest / (with dominant Fagus, Castanea ) [printed] // HOLOTYPE / HYDROPORUS / anatolicus / koksali ssp. nov. / J. Hájek & M. Fiká C ek det. 2007 [printed, red label]” . Paratypes: four males, 11 females (nos. 1–15), same label data as holotype ( GWCW, NMPC) ; one female (no. 16), “ Borçka [ Turkey, Artvin prov., ca. 41°21′N 41°41′E],Asm. [= Asia minor]NO. [NE] / 1500 m, 4/7.6.[19]69 / leg. F. Schubert [printed] // Hydroporus ♀? / anatolicus B.- Br. / det. Wewalka 98 [printed]” ( NHMW) ; one male (no. 17), “TURQUIE [ Turkey]: Artvin [prov.] / Pirnalli [= P i rnall i, ca. 41°15′N 42°03′E], massif / du Karkal Da gi [mts] / 1600 m; 11.VI.1986 [printed] // Besuchet-Löbl / Burckhardt [printed] // Hydroporus anatolicus / J. Balfour-Browne / Fery det. 1998 [printed]” ( HFCB) ; six males, five females (nos. 18–28), “[ Turkey, Erzurum prov.] Özdere Köyü [vill.], Yedi / göller [ Yedigöller ] deresi [stream], Oltu [distr.] / 9.10.1999 / Ö.K.Erman [handwritten] // Hydroporus / obsoletus [handwritten]” ( HFCB, KECE, NMPC) ; one male (no. 29), “TR [ Turkey]-Erzurum- I spir Yolu / 55 Km Çe s menin Yan i / Eylül-2000 / Leg. Erman,Ö.K. [printed]” ( HFCB) ; one male (no. 30), “TR [ Turkey]- ERZURUM [prov.] 9.6. / Tortum-Narman / lg. Jäch [19]89 (72) [printed] // Hydroporus / anatolicus B-Br / det. G.Wewalka 89 [handwritten, name of determinator printed]” ( NHMW) ; one male, two females (nos. 31–33), “ TURKEY, Erzurum prov., / 20 km W Narman, / KIREÇLI GEÇIDI [pass], / 2375–2400 m, 11.–12.VII.2004 / Ji r í Hájek & Jan R 8 ži C ka leg. [printed] // 40°20.7′N 041°41.7′E – / 40°20.2′N 041°41.7′E, steppe and / pastures, wet vegetation / near spring on E slope [printed]” ( NMPC) . Each paratype is provided with a red label similar to that of the holotype, except “ PARATYPE ” is wrtitten instead of “ HOLOTYPE ”, the respective sex symbol and collection number .

Additional material examined. TURKEY: one female, Rize prov., south-east Çaml i shem s in, small streams on road Ayder – Libler Gölü , ca. 40°56′ N, 41°14′ E, 1600–1650 m, 12 August 1992, P. Mazzoldi leg. ( HFCB) .

Measurements. Body length: 3.25–3.50 mm (mean value 3.40 mm, holotype 3.30 mm), width: 1.45–1.65 mm (mean value 1.58 mm, holotype 1.50 mm).

Description. Body flat, elongate and subparallel ( Figure 3B ), similar to that of nominotypical subspecies, but elytra even more tapering to apex, with maximum width close to basal third of elytra. Elytra narrowed also to base of pronotum so pronoto-elytral angle is more distinct than in nominotypical subspecies.

Elytra with two slightly distinct punctured lines on disc. Punctation between puncture lines comprising smaller and sparser punctures than in nominotypical subspecies. Distance between punctures more than double their diameter.

Legs: protibiae and mesotibiae narrow basally, then slightly curved on ventral side and broadened to apex.

Male: dorsal surface shiny. Claws of fore tarsi only slightly hooked. Median lobe of aedeagus in ventral view ( Figure 2C ) with apex shorter than in nominotypical subspecies. In lateral view, median lobe only weakly inflexed, apex short, curved upward. Paramere as in Figure 2D .

Female: pronotum slightly broader than in male. Microreticulation of elytra more distinct than in males so surface subopaque.

Differential diagnosis. The new subspecies differs from nominotypical subspecies by the oval elytra tapering strongly to apex and slightly to base, sparser and finer punctation of elytra, protibiae and mesotibiae with sinuation on ventral side, and shape of median lobe. Apex of median lobe short and curved upwards in H. a. koksali ssp. nov., compared with long and nearly straight in H. a. anatolicus .

Etymology. The new subspecies is dedicated to our friend Ömer Köksal Erman (Erzurum, Turkey), a specialist on Turkish Dytiscidae .

Habitat. Collected among gravel in small temporary streams in a mountain area (700–2400 m above sea level) in north-eastern Turkey.

Distribution. Known from several localities in north-eastern Turkey (Artvin, Erzurum and Rize provinces) ( Figure 6 ).

Figures

Figure 2(A–L). Median lobe in lateral and ventral view of (A) Hydroporus anatolicus anatolicus; (C) H. anatolicus koksali ssp. nov.; (E) H. bodemeyeri bodemeyeri; (G) H. bodemeyeri cariaensis ssp. nov.; (H) H. bodemeyeri guignoti; (I) H. cuprescens; (K) H. kurdistanicus sp. nov. Paramere of (B) Hydroporus anatolicus anatolicus; (D) H. anatolicus koksali ssp. nov.; (F) H. bodemeyeri bodemeyeri; (J) H. cuprescens; (L) H. kurdistanicus sp. nov.

Figure 3. Average landmark configuration and body shape of (A) Hydroporus anatolicus anatolicus; (B) H. anatolicus koksali ssp. nov.; (C) H. kurdistanicus sp. nov.; (D) H. bodemeyeri guignoti; (E) H. bodemeyeri bodemeyeri; (F) H. bodemeyeri cariaensis ssp. nov.; (G) H. cuprescens.

Figure 6. Distribution of the species of the H. bodemeyeri species complex.