Gyrophaena hochhuthi Bernhauer 1908

Enushchenko, Ilya V., 2019, Review of the subtribe Gyrophaenina Kraatz 1856 (Coleoptera: Staphylinidae: Aleocharinae: Homalotini) of Middle Asia, with emphasis on the fauna of Kazakhstan, Zootaxa 4613 (2), pp. 379-397 : 390-392

Gyrophaena hochhuthi Bernhauer 1908

( Figs. 41–50 )

Gyrophaena hochhuthi Bernhauer 1908: 324

Type material examined: Holotype of Gyrophaena hochhuthi Bernhauer 1908 : ♀: ‘Osch’ <white printed label>, ‘Hochhuthi Brh | Typus.’ <white handwritten label>, ‘Chicago NHMus | M. Bernhauer | Collection’ <white printed label>, ‘ HOLOTYPE | Gyrophaena | hochhuthi | Bernhauer. 1908 | S. Glotov des. 2010’ <red printed label>, ‘ Gyrophaena | hochhuthi ’ <yellow handwritten label>, ‘Photographed | Kelsey Keaton 2014 | Emu Catalog’ <blue printed label>, ‘FMNH|NS | 0 0 0 0 127 081’ <white printed label> (FMNH) ( Fig. 49 ). Labels as in Fig. 50 .

Material examined: KAZAKHSTAN: North Kazakhstan Area: Alakolskiy District: ♀: Dzhungarian Alatau, Kapal River , 1620 m, 4.VIII.1984, V.A. Kashcheev leg. ( ZIN) ; 2 ♂♂, 4 ♀♀: Dzhungarian Alatau, Koksu River , Rudnichnyi, 30.VII.1984, V.A. Kashcheev leg. ( ZIN, cIE) ; Taiynshinskiy District: 2 ♂♂, 2 ♀♀: Koktal River , Chkalovo, 1.VI.1984, V.A. Kashcheev leg. ( ZIN) ; East Kazakhstan Area: Kokpektinskiy District: 13 ♂♂, 6 ♀♀: Pikhtovka River , Kokzhota, 9.VIII.1987, № 538, V.A. Kashcheev leg. ( ZIN, ZMM, cIE) ; Alma-Ata Area: Karatalskiy District: ♀: Balkhash, Karatal River , 1.VI.2004, V.A. Kashcheev leg ( ZIN) ; Yeskeldinskiy District : 3 ♂♂, ♀: Dzhungar Alatau, Burkhan-Bulak, 12.VI.2004, V.A. Kashcheev leg. ( ZIN, cIE) ; Talgarskiy District: 4 ♂♂, 4 ♀♀: SE Kazakhstan, Zailiyskiy Alatau Mts., Left Talgar Riv., N 43°06’ 62’’; E 77°09’14’’, h= 2370 m, 27-29.VIII.2013, Kolov (cIE); ♂, 2 ♀♀: right inflow of Chilik River, 12 km from inflow of Taldy River , 6.VII.1987, № 510, V.A. Kashcheev leg ( ZIN, ZMM, cIE) ; 111 ♂♂, 144 ♀♀: [Kegenskiy distr.] Taldy River, Chilik River , floodplain for- est, 9.VII.1987, № 510, M. K. Childebayev leg. ( ZIN, ZMM, NHMW, FMNH, cIE) ; 50 ♂♂, 58 ♀♀: Taldy River , floodplain forest, leaf litter, 10.VII.1987, № 514, V.A. Kashcheev leg. ( ZIN, ZMM, cIE) ; 1062 ♂♂, 1390 ♀♀: Kungei-Alatau Mountain Ridge, Kilbastau Gorge, 14.VII.1987, № 521, V.A. Kashcheev leg. ( ZIN, ZMM, NHMW, FMNH, cIE) ; 43 ♂♂, 37 ♀♀: ibid, 15.VII.1987, № 516, V.A. Kashcheev leg. ( ZIN, ZMM, cIE) ; 334 ♂♂, 464 ♀♀: ibid, 17.VII.1987, № 517, V.A. Kashcheev leg. ( ZIN, ZMM, cIE) ; ♂, 2 ♀♀: ibid, window trap, 17.VII.1987, № 522, V.A. Kashcheev leg. ( ZIN) ; 5 ♂♂, ♀: ibid, 28.VIII.1987, V.A. Kashcheev leg. ( ZIN, cIE) ; 3 ♀♀: ibid, 9.VIII.1988, V.A. Kashcheev leg. ( ZIN, cIE) ; Uigurskiy District : 4 ♂♂, 7 ♀♀: Ketmen-Tau, Malyi Kirgisai Gorge, 26.VII.1987, № 528, V.A. Kashcheev leg. ( ZIN, ZMM, cIE) ; 3 ♂♂, 2 ♀♀: ibid, 28.VII.1987, V.A. Kashcheev leg. ( ZIN, cIE) ; 11 ♂♂, 10 ♀♀: ibid, 28.VII.1987, № 529, V.A. Kashcheev leg. ( ZIN, ZMM, cIE) ; 11 ♂♂, 22 ♀♀: Ketmen-Tau, Bolshoi Kirgisai Gorge, 29.VII.1987, V.A. Kashcheev leg. ( ZIN, ZMM, FMNH, cIE) ; 6 ♀♀: ibid, 30.VII.1987, V.A. Kashcheev leg. ( ZIN, cIE) ; 30 ♂♂, 48 ♀♀: ibid, 31.VII.1987, № 533, V.A. Kashcheev leg. ( ZIN, ZMM, NHMW, FMNH, cIE) ; 2 ♂♂, 3 ♀♀: ibid, 13.VII.2009, V.A. Kashcheev leg. ( ZIN, cIE) ; 2 ♂♂, 5 ♀♀: Ketmen-Tau, Temirlik River , 19.VIII.1988, V.A. Kashcheev leg ( ZIN, cIE) ; Raiymbekskiy District: 23 ♂♂, 25 ♀♀: [Kechenskiy District] Kungei-Alatau Mountain Ridge, Saty, Taldy River , 10.VII.1987, № 513, V.A. Kashcheev leg. ( ZMM, ZIN, NHMW, FMNH, cIE) ; ♂ 2 ♀♀: Kungei Alatau, Chilik River, Taldy River , 6.VII.1987, V.A. Kashcheev leg. ( ZIN) ; 3 ♂♂, 13 ♀♀: [Kechenskiy District] floodplain of Chilik River , behind Saty, 9.VII.1987, № 511, V.A. Kashcheev leg. ( ZIN, ZMM, cIE) ; 2 ♂♂, ♀: Kungei-Alatau Mountain Ridge, Kurmetty, floodplain forest, leaf litter, 12.VII.1987, № 514, V.A. Kashcheev leg. ( ZIN) ; 100 ♂♂, 79 ♀♀: Chilik River basin, Kurmetty, 5.VII.1987, № 509, V.A. Kashcheev leg. ( ZMM, ZIN, NHMW, FMNH, cIE) ; 72 ♂♂, 79 ♀♀: Kungei-Alatau Mountain Ridge, Kurmetty Gorge, spruce belt, h= 2400 m, 9.VII.1987, № 511, V.A. Kashcheev leg. ( ZIN, ZMM, NHMW, FMNH, cIE) ; 21 ♂♂, 64 ♀♀: NW Tian-Shan, Trans-Ili Alatau, mixed forest belt, 8.VI.1986, № 499, M. K. Childebayev leg. ( ZIN, ZMM, NHMW, FMNH, cIE) ; KYRGYZSTAN: Talas Area: Talasskiy District: 8 ♂♂, 5 ♀♀: valley of Oshibulag River (right inflow of Chychkan River ), vicinities of Oshibulag, 42°05,765’ N; 72°48,192’ E, H= 1629 m, 2.VI.2016, D.M. Palatov leg. (cIE, ZMM, ZIN) ; Dzhalal-Abad Area: Chatkalskiy District : 672 ♂♂, 838 ♀♀: Dzhany-Bazar, 41°40,262’ N; 70°49,053’ E, 8.VI.2016, D.M. Palatov leg. (cIE, ZMM, ZIN) ; Suzakskiy District: 14 ♂♂, 9 ♀♀: Kara-Alma River basin, inflow Kugartsu, Ferg. [anskiy Mountain Ridge], 6.V. [19]25, Dobrzhansk [iy leg.] ( ZIN, ZMM) ; Issyk-Kul Area: Dzhen-Aguzskiy District : 3 ♂♂: Terskei-Alatau Ridge, gorge of Chon-Kyzyl-Su River, 2450 m, 27.VIII.1988, V.V. Yanushev leg. ( ZMM) .

Addition material examined: CHINA: Sintszyan-Uigursky Autonomous Region: Chantszi-Khueyskiy Autonomous District: 37 ♂♂, 33 ♀♀: Bogdo-Ula Mountain Ridge, Daong River , Picea tianschanica forest, 43°51’22.88”N, 88°09’39.58”E, on Lactarius sp., 0 8.07.2017, D.M. Palatov leg. ( ZIN, cIE) .

Redescription. Body red-brown to dark-brown; body length 1.50–2.30 mm. Habitus as in Figs. 41 , 49 . Head and antennomeres 4-11 dark-brown; pronotum slightly paler than head, red-brown; disc of elytra golden-brown, with posterolateral angles dark-brown; abdomen red-brown except of segments V–VI dark-brown; antennomeres 1-3 yellow-brown; mouthparts brown; legs yellow-brown to red-brown. Body with distinct reticulate microsculpture. Head 1,4 times as wide as long, with distinct reticulate microsculpture and more than 8 rather large (about 0,0 1 mm diam.), distinct punctures forming rows behind eyes; median portion of head impunctate. Antennomeres 1–3 elongate, antennomere 4 subquadrate to slightly elongate, antennomeres 5–10 subequal in length, subquadrate to slightly transverse; apical antennomere conical, 1.4 times as long as wide. Pronotum somewhat flat, 1.4 times as wide as long and 1.3 times as wide as head; microsculpture as that on head, with two median rows consisting of small, irregular punctures and with similar punctures on sides of each row near margins of pronotum; median portion impunctate; basal portion with slightly defined punctation. Elytra 1.6 times as wide as long and 1.4 times as wide as pronotum, with distinct reticulate microsculpture; each elytron with indistinct, sparse, small punctation and few weakly defined tubercles on posterior angles. Abdomen wedge-shaped, with microsculpture as that on head and pronotum.

Male. Abdominal tergite VII with two elliptic median tubercles obliquely turned towards each other, and with two pairs of longer lateral elevations from each of median tubercle. Apical margin of abdominal tergite VIII with four teeth: two widely separated, moderately wide and markedly elongate, slightly curved toward rounded apices and two very short and narrow medial teeth ( Figs. 43–44 , 48 ). Ventral plate of aedeagus narrowly elongate, arcshaped (if see laterally), ventral margin even in outline (without bulging on the middle part and not angled bent near the base), acute apically (lower edge of the ventral plate even); apical projection short ( Figs. 42 , 47 ); dorsal projection of internal sac equal to ventral plate, inclined to it, twisted into narrow tube, rather regularly elongate in shape.

Female. Surface of abdominal tergite VII somewhat flat, with a number of small round tubercles on apical margin; tergite VIII widely trapezoid, truncate apically ( Fig. 45 ); sternite VIII rounded apically, blunt-pointed ( Fig. 46 ).

Comparative notes. Based on the punctation, microsculpture, and coloration of the body, G. hochhuthi is similar to G. congrua , which is distributed in Europe, the European part of Russia, Caucasus, Siberia and the Russian Far East ( Schülke & Smetana 2015). It can be distinguished by the shape of middle teeth on the apical margin of male abdominal tergite VIII (these teeth are significantly longer in G. congrua ), and the morphology of the aedeagus (lower margin of the ventral process of G. congrua slightly angled; dorsal projection of the internal sac of the aedeagus narrowly elongate and sinuate).

Remarks. Bernhauer (1908) described G. hochhuthi ( Figs. 49–50 ) based on the single female from Margilan, south-eastern part of Fergana Valley ( Uzbekistan). It is noteworthy that the author compared this species with G. fasciata , which I interpret as G. congrua , because these species ( G. fasciata and G. congrua ), as well as G. laevipennis Kraatz 1856 were confused with each other in nineteenth and twentieth centuries ( Bruge 2005, Enushchenko & Semenov 2016).

Among large series of G. hochhuthi from Kazakhstan and Kyrgyzstan, I found several specimens that are slightly different from other specimens in the shape of aedeagus and the male abdominal tergite VIII ( Figs. 47–48 ). Lateral teeth on apical margin of its abdominal tergite VIII rather long, thin and weak, slightly acute and curved inwards (medial teeth of abdominal tergite VIII of G. hochhuthi often shorter, rather stout and obtuse); median teeth short, blunt and weak as that in G. hochhuthi . Ventral plate of aedeagus narrowly elongate, with distinct convex ventral margin, acute apically; apical projection rather long and curved, blunt; dorsal projection of the internal sac equal to the ventral plate, inclined to it, twisted into a rather wide tube, slightly broadened apically, irregularly elongate in the shape. Based on the characters of the body, it corresponds with other studied specimens of G. hochhuthi . I suppose, that is an example of aberrant variability of this species.

Figures

FIGURES 39–46. Gyrophaena aryanamensis, sp. nov. (Figs. 39, 40: KYRGYZSTAN, Dzhany-Bazar) and Gyrophaena hochhuthi Bernhauer (Figs. 41–46: KYRGYZSTAN, Dzhany-Bazar): 41—habitus, dorsal view, 42—aedeagus, lateral view, 43, 44—male abdominal tergite VIII, dorsal view, 39, 45—female abdominal tergite VIII, dorsal view, 40, 46—female abdominal sternite VIII, dorsal view. Scale bars: 1 mm (41), 0.1 mm (39, 40, 42–46).

FIGURES 47–50. Gyrophaena hochhuthi Bernhauer: 47—aedeagus, lateral view, 48—male abdominal tergite VIII, dorsal view (Figs. 47, 48: G. hochhuthi, KYRGYZSTAN, Terskei-Alatau), 49—habitus of holotype, dorsal view, 50—labels of holotype. Scale bars: 1 mm (49), 0.1 mm (47, 48, 50).