Hydroporus shaverdoae, Fery, 2009

Fery, Hans, 2009, New species of the Hydroporus longulus-group from Iran, Armenia and Turkey with a synopsis of the group (Coleoptera: Dytiscidae), Acta Entomologica Musei Nationalis Pragae 49 (2), pp. 529-558 : 547-549

Hydroporus shaverdoae sp. nov.

Hydroporus sp. n.: SHAVERDO (2003: 35, 36).

Type locality. Armenia, Mount Aragats , NW Byurakan, near Amberd, 40.406N 44.228E ; ca. 2100 m a.s.l. {15}.

Type material. HOLOTYPE: 1 J, ‘ Armenia : Mt. Aragats (18), NW Byurakan, nr. Amberd, 40°24.34’N 44°13.65’E, ca. 2100 m, 6.5.2001, leg. Shaverdo & Schillhammer’ [printed] {15}, ‘ Hydroporus jacobsoni Zaitz., Shaverdo H. det. 2001’ [printed, hw Shaverdo in part] , ‘ Holotype, Hydroporus shaverdoae sp. n., H. Fery det. 2009’ [red, printed] ( NMW).The numbers in brackets on the labels of the holotype and other specimens deposited in CHS refer to additional collecting data given in SHAVERDO (2003) . PARATYPES: ARMENIA: 1 ♀, same collecting data as the holotype ( CHS).1J 5♀♀, ‘S Armenia: 31.5.2001 (76), 3 km above Kadzharan [= Kajaran or Kadscharan,ca. 39.16N 46.16E], Kadzharan river, ca. 2000 m, leg. Shaverdo’ [printed] {10}, ‘ Hydroporus jacobsoni Zaitz., Shaverdo H. det. 2001’ [printed, hw Shaverdo in part] ( CHS, CHF). Each paratype is provided with the respective red printed label.

Additional material studied. The following six specimens probably belong to the new species, but are not treated as paratypes since they are females and I am not sure about their identity: 1 ♀, ‘ Armenia: N Yerevan (65), 24 km NW Hrazdan, bel. [= below] Ankavan, 40°38.22’N 44°32.34’E, ca. 1970 m, 27.5.2001, leg. Shaverdo’ [printed] {14}, ‘ Hydroporus jacobsoni Zaitz., Shaverdo H. det. 2001’ [printed, hw Shaverdo in part] ( CHS). 3 ♀♀, ‘ Armenia: N Yerevan (55), 30 km NW Hrazdan, above Ankavan, 40°37.35’N 44°28.02’E, ca. 2050 m, 19.5.2001, leg. Shaverdo & Schillhammer’ [printed] {13}, ‘ Hydroporus jacobsoni Zaitz., Shaverdo H. det. 2001’ [printed, hw Shaverdo in part] ( CHS, CHF). 1 ♀, ‘ Armenia: E Dilizhan [= Dilijan] (61), Parzlich Lake, 22.5.2001, ca. 1330 m, 40°45.19’N 44°57.72’E, leg. Shaverdo & Schillhammer’ [printed] {12}, ‘ Hydroporus jacobsoni Zaitz., Shaverdo H. det. 2001’ [printed, hw Shaverdo in part] ( CHS). 1 ♀, ‘Arm. Sevan Lake, Tsovagynch [= Tsovagyugh, ca. 40.63N 44.95E], 17.– 20.6.1981, Josef Král lgt.’ [printed] {11}, ‘ Hydroporus (Sternoporus) ♀?, jakobsoni [sic!] Zaitz, Wewalka 1983’ [hw Wewalka] ( CGW).

Differential diagnosis (given chiefly as differences from H. jelineki sp. nov.). More similar to H. jelineki sp. nov. and especially to H. hajeki sp. nov. than to H. jacobsoni . Maximum width of body more or less in middle of total length, distinctly before middle of elytral length. Discontinuity of body outline in dorsal view between pronotum and elytra weak, maximum width of pronotum at posterior angles. Punctation on disc of elytra more or less as in H. jelineki sp. nov., puncture lines distinct. Upper surface mostly black; only vertex of head, short stripe above insertion of each antennae and pronotal rim at posterior angles dark brownish. Venter with contrast between brownish appendages and body surface not prominent, more or less as in H. jelineki sp. nov. Darkening of middle of femora indistinct.

JJ. Median lobe ( Fig. 7 ) in ventral view with tip broader rounded than in H. hajeki sp. nov. ( Fig. 6 ) and H. kryshtali ( Fig. 8 ), and clearly much broader than in H. jacobsoni ( Figs. 5–7 ). Paramere as in Fig. 14 . Sucker cups on first tarsomere of pro- and mesotarsomeres present. ♀♀. Without conspicuous external differences to males. Gonocoxosternum and gonocoxae as in Figs. 20 and 25 .

Measurements. TL: 3.45–3.9 mm, MW: 1.65–1.85 mm, TL/MW: 1.97–2.14, IO/MP: 0.47–0.50.

Variability. Some specimens also dark brownish next to suture of elytra and/or on entire pronotal rim; in a few specimens elytra in larger extent dark brownish. Punctation slightly varying in coarseness and density; sides of pronotum in a few specimens slightly more curved posteriorly.

Distribution. So far known as endemic for Armenia, collected in the northern as well as in the southern part ( Fig. 26 ).

Biology. The following additional collecting data have been communicated by H. V. Shaverdo (see also SHAVERDO 2003): locality {10}: puddles on the banks of Kadzharan river, between large granite rocks (diameter ca. 3 m), plenty of Heracleum , bottom of puddles covered by decaying plant material. Locality {12}: puddle, caused by deep car tracks, probably longlasting, shaded, with much flooded vegetation ( Ranunculus ), in surrounding forest. Locality {13}: small spring fed puddles, bottom sandy-stony, thick layer of decaying leaves, grass, twigs and branches, banks with Caltha . Locality {14}: shallow stagnant area and flooded grassland, ca. 10 cm deep, near Marmaryk river; geology: granite with volcanic and crystalline components. Locality {15}: small river, fast flowing, ca. 2–5 m wide, exceedingly cold (ca. 5°C), most aquatic beetles from small accompanying rivulets with dense aquatic vegetation (incl. moss); geology: volcanic (basalt, tuff).

Etymology. The species is named after my colleague and friend Helena V. Shaverdo (Vienna, Austria), who kindly submitted her material for study (noun in apposition in the genitive case).

Figures

Figs. 5–8. Median lobe of aedeagus in ventral and lateral view. 5 – Hydroporus jacobsoni Zaitzev, 1927; 6 – H. hajeki sp. nov.; 7 – H. shaverdoae sp. nov.; 8 – H. kryshtali Bilyashiwski, 1993.

Figs. 9–15. Left paramere. 9 – Hydroporus jelineki sp. nov. 10 – H. libanus Régimbart, 1901; 11 – H. holzschuhi sp. nov.; 12 – H. jacobsoni Zaitzev, 1927; 13 – H. hajeki sp. nov.; 14 – H. shaverdoae sp. nov.; 15 – H. kryshtali Bilyashiwski, 1993.

Figs. 16–25. 16–20 – gonocoxosternum. 16 – Hydroporus jelineki sp. nov.; 17 – H. holzschuhi sp. nov.; 18 – H. jacobsoni Zaitzev,1927 (specimenfrom Itkol);19 – H. hajeki sp.nov.; 20 –H.shaverdoaesp.nov.21–25 –gonocoxae. 21 – H. jelineki sp. nov.; 22 – H. holzschuhi sp. nov.; 23 – H. jacobsoni (specimen from Itkol); 24 – H. hajeki sp. nov.; 25 – H. shaverdoae sp. nov.

Fig. 26. Distribution of Hydroporus jelineki sp. nov. (1–6), H. hajeki sp. nov. (7), H. holzschuhi sp. nov. (8–9), H. shaverdoae sp.nov.(10–15), H. jacobsoni Zaitzev, 1927 (16–23), H.kryshtali Bilyashiwski, 1993 (24), H. libanus Régimbart, 1901 (25–26).