Gyrophaena (s.str.) orientalis A. Strand, 1938

Enushchenko, Ilya V., Makarov, Kirill V. & Shavrin, Alexey V., 2024, Review of the subtribe Gyrophaenina Kraatz, 1856 (Coleoptera: Staphylinidae: Aleocharinae: Homalotini) of Kunashir Island, with notes on species of Far Eastern Russia, Zootaxa 5535 (1), pp. 1-81 : 55-56

3.2.8. Gyrophaena (s.str.) orientalis A. Strand, 1938

( Figs 231–231 , 301 )

Gyrophaena orientalis A. Strand, 1938: 39 ; Glotov 2014: 181 .

Gyrophaena transsylvanica Ádám, 2008: 164 .

Material examined. JEWISH AUTONOMOUS AREA : 12 spec.: Obluchenskiy District, Pashkovo , 11.VIII.1977. A.B. Ryvkin leg ( ZMM) ; 1 ♂: same data. 4.VII.1977. (cIE) ; 5 ♂♂, 6 ♀: Birobidzhanskiy District, Dichun. 11.VIII.1977. A.B. Ryvkin leg. ( ZMM) ; AMUR AREA : 1 ♂: Skovorodinskiy District, left side of Urka River, 4 km N Yerofey Pavlovich, 54º00’40,89’’N 121º57’43,75’’E. In Clitocybe odora (Fr.) Kumm. 28.VIII.2014. I. V . Enushchenko &A. V . Shavrin leg. (cIE); 2 ♂♂, 1 ♀: same data, 8 km N Yerofey Pavlovich, 54º02’24,8’’N 121º58’30,7’’E. In Hedeloma mesophaeum (Pers.) Quel. 31.VIII.2014. I. V . Enushchenko & A. V . Shavrin leg. (cIE); 2 ♂♂: Selemdzhinskiy District, Selemdzhinsk. VIII.1976. A.B. Ryvkin & E.M. Veselova leg. ( ZMM) ; 27 ♂♂, 21 ♀♀: Selemdzha River basin, 51 km below Ekimchan, near Angelokit Rill. 404 m a.s.l., in? Kuehneromyces mutabilis on firewood near hut. 8.VIII.2005. A.B. Ryvkin leg. ( ZMM, FEB, cIE) ; 3 ♂♂, 3 ♀♀: same data, Norsk , in geophilous gill fungus. 8.IX.2004. ( ZMM, cIE) ; 1 ♂, 5 ♀♀: same District, Norskiy Reserve, Selemdzha River basin near Dvadtsatikha kordon. In geophilous and epigenous gill fungi ( NN38-39 ). 24. VI .2005. E.M. Veselova & A.B. Ryvkin leg. ( ZMM, cIE); 2 ♂♂: same data, Nora River basin near Meunskiy kordon. In epigenous gill fungi (?oyster fungi). 14.VII.2005. (cIE) ; 4 ♂♂, 8 ♀♀: same data, Nora River basin near Osinovoye Lake. In epigenous gill fungi (?oyster fungi) on fallen rotten birch trunk. 27.VII.2005. ( ZMM, cIE) ; 4 ♂♂, 4 ♀♀: same data, Burunda River basin, 0.5-1 km NW of Burunda kordon. In geophilous and epigenous gill fungi. 12.IX.2004. ( ZMM) ; 39 ♂♂, 35 ♀♀: same data, 2 km SE of Burunda kordon, in geophilous gill fungi, 26.IX.2004. ( ZMM, FEB, cIE) ; 1 ♀: Mazanovskiy District, right bank of Nora River, Zmeinaya Mt. In geophilous and epigenous gill fungi. 17.VII.2005. A.B. Ryvkin leg. (cIE) ; KHABAROVSK TERRITORY: 2 ♀♀: Verkhnebureinskiy District, Tyrma River below Alanap village , near thermal spring , 50°03.32’N 131°51.00’E. 290-320 m a.s.l., in gill fungi. 8.VIII.2009. A.B. Ryvkin leg. (cIE); 4 ♂♂, 6 ♀♀: same District, Ust’-Urgal Nature Park (project), forest road NW of Ust’ - Niman , 51°23.97’N 132°43.98’E. 290- 320 m a.s.l., in epigenous and geophilous fungi. 4.VIII.2009. A.B. Ryvkin leg. ( ZMM, cIE); 2 ♂♂, 2 ♀♀: same data, island on Bureya River below Yerdak winter hut , 51°15.39’N 132° 31.61’E. 250 m a.s.l., in epigenous and geophilous fresh and rotten fungi. 6.VIII.2009. ( ZMM, cIE) ; 3 ♀♀: same District, Dublikanskiy Nature Refuge near kordon. 350 m a.s.l., in rotten and fresh geophilous fungi. 1.IX.2009. A.B. Ryvkin leg. ( ZMM, cIE) ; 1 ♀: same data. 350 m a.s.l., in epigenous gill fungi. 4.IX.2009. (cIE) ; 3 ♂♂, 3 ♀♀: same District, lower reaches of Verkhniy Mel’gin River near 1st rapid. 300-350 m a.s.l., in geophilous fungi. 18.VIII.2009. A.B. Ryvkin leg. ( ZMM, cIE) ; 14 ♂♂, 16 ♀♀: same District, Bureya River basin, flood plain of Levyi Ussomakh River near mouth , 51°31.688’N 133°48.894’E. 469 m a.s.l., in epigenous gill fungi. 2.IX.2014. A.B. Ryvkin leg. ( ZMM, FEB, cIE); 6 ♂♂, 2 ♀♀: same District, Bureinskiy Nature Reserve, right side of Pravaya Bureya River below Bezymyannyi stream mouth , 52°03.971’N 134°17.782’E - 52°03.952’N 134°17.781’E. 822-824 m a.s.l., in geophilous gill fungi. 17.VIII.2014. A.B. Ryvkin leg. (cIE); 1 ♀: same data , 51°57.178’N 134°22.685’E. 734 m a.s.l., gill fungi in flood-plain forest. 23.VIII.2014. (cIE); MARITIME PROVINCE: 1 ♂: Ussuriyskiy District, Ussuriyskiy Nature Reserve . 3.VII.1980. A.B. Ryvkin leg. ( ZMM) ; 1 ♂: same District, Kamenushka. VI .1983, A.B. Ryvkin leg. ( ZMM); SAKHALIN AREA: 1 ♂: S Sakhalin, vicinity of Tret’ya Pad’ settlement, valley of Plastunikha (Pastushka) River , 46°42’04’’N 142°45’44’’E. VII.2003. I. V . Mel’nik leg. (cIE).

Distribution. Gyrophaena (s.str.) orientalis is a widely distributed species in the Transpalaearctic region. The distribution of the species in Eastern Siberia and Far Eastern Russia is shown in Fig. 301 .

Remarks. Some specimens of G. orientalis from Amur Area have a slightly different shape of the apical portion of the aedeagus in dorsal view (apex with moderately deep and wide protrusion ( Fig. 231 ), not shallow and small as in other studied specimens of G. orientalis ) somewhat similar to that in Nearctic G. keeni Casey 1911 . The pronotum and the elytra of these specimens are glossy and without distinct reticulate microsculpture compared to these in other studied specimens of G. orientalis from different Palaearctic localities. Other specimens are distinguished by a small and shallow ( G. orientalis - type) apical protrusion in the aedeagus and weak reticulate microsculpture on the pronotum compared to some G. keeni . It is possible that this is a result of morphological variability. In any case, a comparison of these specimens with G. keeni is required. For illustration of G. orientalis see Figs 52–54 in Enushchenko & Semenov (2016). Aedeagus as in Figs 230–221 .

The species is recorded for the fauna of Far Eastern Russia for the first time.

Figures

FIGURES 226–231. Gyrophaena (s.str.) obsoleta (Figs 227–229) and G. (s.str.) orientalis (AmurArea, Yerofey Pavlovitch: Figs 231–231): 226—habitus, 227, 230—aedeagus, lateral view, 231—aedeagus, parameral view, 228–229—male abdominal tergite VIII. Scale bars: 1.0 mm (Fig. 226), 0.1 mm (Figs 227–231).

FIGURES 297–304. Distribution of Gyrophaena in Eastern Siberia and Far Eastern Russia: 297—G. (s.str.) sp., 298—G. (s.str.) fusicornis, 299—G. (s.str.) joyi, 300—G. (s.str.) obsoleta, 301—G. (s.str.) orientalis, 302—G. (s.str.) pasniki, 303—G. (s.str.) permixta, 304—G. (s.str.) poweri.

FIGURES 46–54. Gyrophaena (s.str.) gonggamontis: 46—habitus, 47—aedeagus, lateral view, 46—aedeagus, ventral view, 49—paramere, 50—male abdominal tergite VIII, 51—male abdominal sternite VIII, 52—female abdominal tergite VIII, 53— female abdominal sternite VIII, 54—spermatheca. Scale bars: 1.0 mm (Fig. 46), 0.1 mm (Figs 47–54).