Hydroporus glasunovi glasunovi ZAITZEV 1905

Fery, H. & ŠġASTNÝ, J., 2010, On the identity of Hydroporus glasunovi ZAITZEV 1905, with the description of Hydroporus glasunovi dolini nov. ssp. (Coleoptera, Dytiscidae), Linzer biologische Beiträge 42 (2), pp. 1005-1028 : 1008-1012

Hydroporus glasunovi glasunovi ZAITZEV 1905

Hydroporus glasunovi ZAITZEV 1905: 26 . - J. SAHLBERG 1910: 176. - GUÉORGUIEV 1963: 216. - NILSSON 1995: 52. - NILSSON 2001: 157.

Hydroporus Glasunovi ZAITZEV ; ZIMMERMANN 1920: 88. - WINKLER 1924: 224. - ZIMMERMANN 1931: 155.

Hydroporus glazunovi [sic!] ZAITZEV; ZAITZEV 1953: 171 (partim). - ZAITZEV 1972: 181 (partim). - ŠġASTNÝ 1993: 78.

Hydroporus macrocephalus GSCHWENDTNER 1923: 100. - ZIMMERMANN 1931: 107. - ZAITZEV 1953: 171 (synonymy).

L e c t o t y p e of Hydroporus glasunovi (by present designation):, "Turkestan, Lac. Kulikulan, Glasunov 1892" [printed], " Hydroporus glasunovi mihi, det. Ph. Zaicew." [hw Zaitzev in part], "ZIRL" [= Zoological Institute, Russia, Leningrad (= St. Petersburg); printed], " Syntypus, Hydroporus glasunovi Zaitzev, 1905 " [red, hw R.E. Roughley?], " Lectotype, Hydroporus glasunovi Zaitzev, 1905 , Fery des. 2010" [red, printed], ca. 39.17N 68.18E {loc. D} (ZISP). N o t e s: The lectotype lacks three left mesotarsomeres and the complete left metatarsus.

P a r a l e c t o t y p e s of Hydroporus glasunovi : T a j i k i s t a n: 4, same label data as the lectotype, but lacking Zaitzev's determination label {loc. D} ( ZISP). 1, 1, "Turkestan, Lac. Kulikulan, Glasunov 1892" [printed], " Syntypus?, Hydroporus glazunovi Z." [red, hw R.E. Roughley?], " Hydroporus glazunovi Z., Syntypes ", "Zoological Institute, Russian Academy of Sciences , St. Petersburg, Russia " [yellow, printed] {loc. D} ( ZISP). N o t e s: Both specimens originally mounted on one pin, but separated by us and provided with photocopies of the original labels. 1, "Turkes. oz. [= ozero = lake] Kuli-Kulan. 12.VI.[18]92, D. Glazunow " [transliterated from Russian; hw Glazunov?], " Syntypus?, Hydroporus glazunovi Z." [red, hw R.E. Roughley?], "ZIRL" [printed] {loc. D} ( ZISP) .

C h i n a: 1, 2, "4.X.[18]90, Gromb. [= B. Grombtschewski (Grąbczewski), collector], King Shiver [= Kangxiwar; almost illegible]" [hw Grombtschewski?], "ZIRL" [printed], ca. 36.20N 78.77E {loc. K} ( ZISP). N o t e s: All three specimens originally mounted on one pin, but separated by us and provided with photocopies of the original labels. King Shiver or King-Schewer is identical with today's Kangxiwar (Encarta World Atlas) ; other names of that city are K'ang-hsi-wa, Keng Hsi Wa, Kengshewar, Su-mu-t'u-erh. N o t e s: All paralectotypes with the respective red printed paralectotype label. For the Chinese paralectotypes, see also section Populations of unclear identity.

T y p e l o c a l i t y of Hydroporus glasunovi : T a j i k i s t a n: "Turkestan: See Kulikulan"; this locality is situated in the Fan (or Fann) Mountains, at the altitude of 2827 m, ca. 39.25N 68.17E {loc. D}. That lake is named also Kulikalon and Kul-i Kalon (H. Schütze, personal communication).

L e c t o t y p e of Hydroporus macrocephalus (by present designation):, "Jssyk-Kul" [printed], "Type, Gschw." [grey-brownish label, hw Gschwendtner], " Hydroporus macrocephalus" [hw Gschwendtner], "Coll. Gschwendtner" [printed], "Type" [red, hw?], " Lectotype, Hydroporus macrocephalus Gschwendtner, 1923, Fery des. 2010" [red, printed] {loc. X} (OLML). N o t e s: The lectotype lacks nine right antennomeres and most left and right protarsomeres. P a r a l e c t o t y p e: According to GSCHWENDTNER (1923: 101), there should exist two male

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syntypes, but we have been able to find only a single one. N o t e s: For more information on the identity of this taxon, see section Populations of unclear identity.

T y p e l o c a l i t y of Hydroporus macrocephalus: K y r g y z s t a n: "Issyk-kul" [kul = lake] (also Ysyk-Köl) {loc. X}. N o t e s: GSCHWENDTNER (1923: 101) wrote "Zwei aus dem Issyk-kul" which might be translated either as " two males from the Issyk-Kul [region]", or also as " two males [taken directly] from [lake] Issyk-Kul". We have strong doubts, however, that the specimens have been taken indeed directly from the water of that lake. Since for other material from "Issyk-kul" Gschwendtner gave additionally "Tonfluss" [= Ton (or Tong) River, ca. 42.1N 77.0E, situated more or less in the centre of the southern shores of Issyk-Kul; see SCHÜTZE & KLEINFELD 1999: 172], one might assume that the syntypes of H. macrocephalus were also found in this river. On the other hand, we should consider that Gschwendtner did not collect that material himself, but acquired from the insects seller A. Winkler in Vienna the Dytiscidae material of an excursion to Central Asia by an unnamed scientist. Considering the "generous" locality data used in the 19th and early 20th century, the locality "Issyk-kul" may include not only the immediate environs of that lake, but also the entire eastern Kyrgyzstan, and even the adjacent regions in southeastern Kazakhstan and western China. In addition, GSCHWENDTNER (1923: 95) told us that the acquired material included also specimens from " Persia, Transcaspia, Turkestan, Semirechensk, Dzungaria, Mongolia, and the northern slopes of Tibet, especially the Altyn-tag [= Altun shan]", so who can guarantee that the locality data have not been mixed by mistake? Anyway, the type locality is very inexact and doubtful, and only newly collected material from that region can help to clear up the identity of H. macrocephalus.

A d d i t i o n a l m a t e r i a l s t u d i e d: A f g h a n i s t a n 3, 1 ex. without genitalia, "Afghanjstan, Lac Chiva, 10.8.1960, Dr. K. Lindberg Leg. ", on reverse "bassin central, 3100 m ", " Hydroporus glasunovi Zaitz. , det. V. Guéorguiev 1962", ca. 37.23N 71.24E {loc. H} ( MZL). N o t e s: Abdomen of one specimen prepared separately on the glue card (by Guéorguiev ?), but genitalia absent. GUÉORGUIEV (1963: 217) provided the following details: "Koul-Choghan (lac Chiva), bord du lac, bassin central, alt. 3100 m, 1 et 4 à 10.VIII.1960 (K. Lindberg)". 1, " Afghanistan, Lac Chiva, 10.8.1960, Dr. K. Lindberg Leg. ", on reverse "bassin central, 3100 m ", " Hydroporus glasunovi Zaitz. , det. V. Guéorguiev 1970", ca. 37.23N 71.24E {loc. H} ( MRTO). 1, "Shiz. [hw, almost illegible; most probably = Shidz], Rushan, Pamir, Luppova 9.-11.IX.[1]937" [transliterated from Russian], ca. 37.93N 71.32E {loc. I} ( ZISP). 1, "Shiz. [hw, almost illegible; most probably = Shidz], swampy source, B-75., Rushan, Pamir, Luppova 11.IX.[1]937" [transliterated/translated from Russian], ca. 37.93N 71.32E {loc. I} ( ZISP) .

T a j i k i s t a n 1, "Asia centr., Tadzhikistan, Pamir-Alai, Seravshan Mts., Rudaky, 1500 m 11.VII.1990, leg. Schülke & Wrase", ca. 39.40N 67.60E {loc. C} (CLH). N o t e s: The specimen has been collected some kilometres S of the village Imeni Rudaki (personally communicated by M. Schülke). 1, "Turkestan, Lac. Kulikulan, Glasunov 1892" [printed], " Hydroporus mixtus Motsch., det. A. Jakowlew." [hw A. Jakovlev in part], "Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia " [yellow, printed] {loc. D} (ZISP). 1, " Hydroporus glasunovi m. [= mihi], det. Ph. Zaicew." [without locality label!], "Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia " [yellow, printed] {loc. D} (ZISP). N o t e s: The latter two specimens, most probably, also belong to the series of specimens collected by Glazunov in 1892 at the type locality. We assume, however, that they have not been studied by Zaitzev when he described his new species, because (1) they were not stored in the ZISP together with the lecto- and paralectotypes from Lake Kulukulan, and because (2) according to the original description ( ZAITZEV 1905: 26), there should exist only eight syntypes from that locality. 21 exs. (5, 3 dissected, 1 ex. destroyed in part, others not dissected), "Tadshikistan, Fan Mts. VII.1991, lgt. J. ŠĢastný" [printed], on reverse "Kulikalon Lake" [hw ŠĢastný], " Hydroporus glazunovi Zaitz., J. ŠĢastný det. 1992", ca. 39.17N 68.18E {loc. D} (CJS, CHF). 3 exs, "UdSSR 20.7.[19]91, Tadschikistan, ŠĢastný lgt", on reverse "Fan Mts., 2700 m n.m.", " Hydroporus glazunovi Zeitz. , ŠĢastný det. [19]91", ca. 39.17N 68.18E {loc. D} (CHH). 2 exs., "Tadshikistan, Fan Mts. 20.VII.[19]91, ŠĢastný lgt.", ca. 39.17N 68.18E {loc. D} (CLH). N o t e s: The following specimens have been collected at seven very closely situated localities, which we are unable to identify more exactly. Thus, we integrate them all into locality E. 1, "right bank of river Iskander-darya [darya = river], near the sources, Kiritschenkow 12.VII.[1]947" [translated from Russian], " Hydroporus glazunovi Zait. , det. Shaverdo 1997", ca. 39.07N 68.37E {loc. E} (ZISP). 1 ex. (without genitalia), same text as above, but "20.VII.[1]947", " Hydroporus glazunovi Zait. , det. Shaverdo 2000" {loc. E} (ZISP). 2, 3, 1 ex. (without genitalia), same text as above, but "22.VII.[1]947", one specimen with additional " Hydroporus glazunovi Zait. , det. Shaverdo 2000" {loc. E} (ZISP). 2, 2, 1 ex. (without genitalia), same text as above, but "23.VIII.[1]947", one specimen with additional " Hydroporus glazunovi Zait. , det. Shaverdo 2000"{loc. E} (ZISP). 1, "river Sary-tag, lake Iskander-kul, Kiritschenkow

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21.VII.[1]947" [translated from Russian] {loc. E} ( ZISP). 1, "NW bank of Iskander-kul , Giss. khr. [= Hissar mountain range], Kiritschenkow 8.VIII.[1]947" [in part illegible, translated from Russian] {loc. E} ( ZISP). 1, same text as above, but "18.VIII.[1]947", " Hydroporus glazunovi Zait. , det. Shaverdo 2000" {loc. E} ( ZISP). N o t e s: The following specimens have been collected at four closely situated localities which we are unable to identify more exactly. Thus, we integrate them all into locality F. 1, " Tajikistan, southern slope of Hissar mountain range, left bank of river Takhob, 1850 m, N 12, A Sadykow, 16.VII.[19]68" [translated from Russian], " Hydroporus pubescens transgrediens Gschw. ", ca. 38.87N 68.94E {loc. F} ( ZISP). 1, 1 ex. without genitalia, " Tajikistan, Hissar mountain range, river Takhob, swampy brook, 2000 m, A Sadykow, 24.VI.[19]69" [translated from Russian], ca. 38.87N 68.94E {loc. F }; originally, both specimens mounted on one pin, separated by us and provided with photocopies of the original labels ( ZISP). 2, 1, " Tajikistan, southern slope of Hissar mountain range , right bank of river Takhob, Takhob gorge, 1900 m, A Sadykow N 22, 21.VII.[19]69" [translated from Russian], " Hydroporus pubescens transgrediens Gschw. ", ca. 38.87N 68.94E {loc. F }; originally, all specimens mounted on one pin, separated by us and provided with photocopies of the original labels ( ZISP). 1, 2, 1 ex. without genitalia, " Tajikistan, southern slope of Hissar mountain range , right bank of river Takhob, Takhob gorge, A Sadykow N 22, 21.VII.[19]69" [translated from Russian], " Hydroporus pubescens transgrediens Gschw. ", ca. 38.87N 68.94E {loc. F }; originally, all specimens mounted on one pin, separated by us and provided with photocopies of the original labels ( ZISP). 5, " Tadzhikistan, Turkestan, mountain range, northern slope of river Nurlou [= Nurlow, near Vorukh], upper limit of coniferous wood, 25.VI.[19]63", " Hydroporus pubescens Gyll. , glasunovi Zait. " [in part illegible, translated from Russian ], ca. 39.83N 70.65E {loc. G} ( ZISP). 1, "SU, Tadshikistan, Pamir, Dschailgan [= Dzailgan], Muku-Gebiet, Sugrun-Tal, 2800 m NN, 3.VII.1990, Hartmann", " Hydroporus -92, glasunovi Zaitz. , det. A. Nilsson ", ca. 39.32N 71.52E {loc. J} ( CRB). N o t e s: This specimens has rather weakly impressed reticulation on the venter and, thus, making it similar to H. g. dolini nov.ssp. (see section Populations of unclear identity) .

U z b e k i s t a n 1, " Uzbekistan, Nuratinski g. z. [= Nuratinskiy gosudarstvennyy zapovednik(Nuratau State Nature Reserve)], mountain Khayat, 20.-24.05[19]87, leg. Baschakowa" [translated/transliterated from Russian], ca. 40.50N 66.70E {loc. A} (ZMUM). 1, " Uzbekistan Nuratinsky zapov. [Nuratinsky zapovednik = Nuratau Nature Reserve] khr. Nuratau [khrebet Nuratau = Nuratau Range] Fiazhakh-say Khauz [khauz is the Persian word for pond] 3.04.[1]1985, leg. V. Shakula" [translated/transliterated from Russian], " Hydroporus glazunovi Zaitz. , det. Sacharenkow", ca. 40.50N 66.70E {loc. A} (ZISP). 1, " Usbekistan: Nuratau mts near Farisch, 800-1300 m, K. Kiontke", "Stn No 1-12", ca. 40.50N 66.70E {loc. A} (CLH). 1, 1 ex., " Uzbekistan, N. Kugetang Mts., valley Panzh-Ob, 12.-20.IV.[19]95 H=1600-2000" [male without head, other specimen very immature, not dissected], ca. 38.00N 67.00E {loc. B} (CHS).

R e - d e s c r i p t i o n: H a b i t u s in dorsal view elongate oval ( fig. 1 ), sides subparallel; body outline with very weak discontinuity between pronotum and elytra. Maximum width before middle of total length, in first third of elytral length. In lateral view body rather flat, only little vaulted, outline more or less straight in posterior part of pronotum and first half of elytra, only posteriorly curved to apex of elytra. Pronotum largely black, elytra – in particular near base – rather light yellowish-reddish brown; contrast between pronotum and elytra distinct.

H e a d dark reddish brown, clypeus near anterior margin and in particular above antennal cavity reddish brown; frons near eyes indistinctly lighter than rest of frons; transverse broad marking on vertex also reddish brown; all these lighter parts very diffuse and poorly delimited. Interocular distance about same as half of pronotal width at posterior angles. Clypeus with two grooves behind anterior margin, each prolonged posteriorly by a weak longitudinal depression almost reaching a line joining middles of eyes. Entire surface microreticulated with small polygonal meshes. Punctures near anterior margin of clypeus rather small and not very sparse; posteriorly larger, their diameter smaller than that of meshes; on frons small punctures interspersed with several coarser ones, diameter of latter same as that of meshes or slightly greater; vertex impunctate. Head with impressed punctures line beside inner margin of eyes; clypeal grooves and longitudinal depression with punctures denser. Setae on head very indistinct, if present then only in clypeal grooves and near anterior margin of eyes.

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P r o n o t u m largelyblack;sides–includingbead–reddishbrown,inparticularnear anterior and posterior angles; anterior and posterior margin transparent brownish. Lateral bead rather small (smaller than in typical representatives of the H. planus -group); in lateral view also slightly narrower than half of diameter of antenna. Pronotum in dorsal view trapezoidal, maximum width between posterior angles; sides of pronotum converging from posterior towards anterior angles, almost straight in posterior half, very slightly curved in most of anterior half, only near anterior angles more curved. Sublaterally near base with shallow depression on each side, this depression by no means so deeply impressed as in H. obsoletus ; more medially with other, even more shallow depression on each side. Whole surface punctured; punctures smaller and sparser on disc, coarser and denser towards sides and anterior margin; behind anterior margin with irregular line of coarser punctures. Centre of disc with rather coarse puncture. Surface largely microreticulated, meshes more or less of same diameter as on head; smooth around central coarse puncture and in broad transversal area between this puncture and posterior margin. Most punctures provided with transparent yellowish seta, distinct on entire surface.

E l y t r a reddish brown, distinctly lighter than pronotum and head, transparent over whole surface; near base and particularly at shoulders diffusely lighter, yellowish brown; suture narrowly dark brownish. In dorsal view sides of elytra behind shoulders in anterior third almost straight and weakly diverging backwards. In lateral view elytral margin slightly ascending towards humeral angle; epipleuron visible until humeral angle. Elytral bead thinner than pronotal bead, in lateral view both forming an angle at bases of pronotum and elytra. Punctures on elytra more or less evenly distributed, somewhat larger than on disc of pronotum, but smaller than those near sides of pronotum. Distance between punctures two or three times greater than their diameter. Discal puncture line formed by coarse punctures, distinct almost from elytral base to near apex. Other three puncture lines well recognisable; directly beside elytral bead fifth line indicated by some punctures. Elytra largely smooth, only in posterior sixth microreticulated, with reticulation becoming more impressed towards apex, here, nevertheless, shiny. Setae distinct on entire elytral surface, similar to those on pronotum.

V e n t r a l s u r f a c e mostlyblack. Gula as black as genae. Prothoracic epipleuron (subnotum) and proepisternum brownish; blade of prosternal process dark brown. Elytral epipleura near shoulders transparent brownish, behind shoulders appearing darker because of black venter visible through semitransparent epipleuron. Apex of metacoxal processes brownish; hind margins of third, fourth and last abdominal ventrites broadly transparent brownish.

Prosternal process with blade narrowly lanceolate; in cross-section flatly tectiform, sides flattened and margin beaded; between procoxae with distinct transverse ridge; subbasally before this ridge with some fine transverse carinae; anteriorly, process not prolonged as narrow convexity on to prosternum; prosternum medially flattened and very rugosely sculptured. Posterior margins of metacoxal processes medially protruding backwards, laterally more or less straight and forming one line together; lines of metacoxal processes diverging anteriorly, not reaching posterior margin of metaventrite. Large parts of ventral surface with reticulation consisting of more or less transverse elongate meshes; surface smooth only on epipleura, centre of metaventrite, metacoxal processes, metacoxal plates posteromedially, and second ventrite medially. Reticulation less impressed on metaster-

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num and metacoxal plates, stronger so on last abdominal ventrites. Genae also reticulated, gula smooth except in anterior third. Gula centrally without punctures, at sides and anteriorly with some coarse ones.

Punctation on epipleura, metacoxal plates, sides of metaventrite, and first two abdominal ventrites very coarse; on centre of metaventrite, metacoxal processes except apex, and rest of abdominal ventrites less coarse. Metacoxal processes near apex with rather dense smaller punctures. Last abdominal ventrite, with coarse and deeply impressed punctures in front of posterior margin.

Antennae, palpi, mouthparts and legs brownish, contrast to black venter rather prominent. Mesocoxae and procoxae also lighter brownish, latter darkened proximally. Antennomeres and palpomeres unicolourous, not darkened distally. First and second antennomeres rather long, third one shorter, fourth still shorter than third; fifth to tenth antennomeres longer than third and fourth, elliptic in cross-section; these antennomeres about 2 times as long as longer axis of that ellipse. Setae present on most parts of venter, but not very prominent.

: Protarsal claws indistinctly prolonged, less curved in middle, more curved near apex. Median lobe of aedeagus in dorsal and lateral view as in fig. 3 ; left paramere as in fig. 7 .

: Externally similar to males, except simple protarsal claws. Gonocoxae and gonocoxosterna without distinct differences to those of H. g. dolini nov.ssp. (cf. figs 5 and 6 ).

M e a s u r e m e n t s: The lectotype has the following values: TL = 3.45 mm, TL-H = 3.05 mm, MW = 1.7 mm, TL/MW = 2.03, TL-H/MW = 1.79, WPr/IOD = 2.00, MW/WPr = 1.21. Further data can be found in table 1.

D i s t r i b u t i o n: Afghanistan, Kyrgyzstan, Tajikistan, Uzbekistan; China (?) (see fig. 9).

Figures

Figs 1-2: Habitus of (1) Hydroporus g. glasunovi ZAITZEV; (2) Hydroporus g. dolini nov.ssp.

Figs 3-8: Median lobe of aedeagus of in ventral and lateral view (3) lectotype of Hydroporus g. glasunovi ZAITZEV. (4) holotype of Hydroporus g. dolini nov.ssp. Gonocoxae (5) and gonocoxosternum (6) of Hydroporus g. dolini nov.ssp. Left paramere of (7) lectotype of Hydroporus g. glasunovi ZAITZEV; (8) holotype of Hydroporus g. dolini nov.ssp.