Glaresis orientalis Medvedev 1976
Creators: name: Král, David
name: Hrůzová, Lucie
name: Lu, Yuanyuan
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Glaresidae
Glaresis
Glaresis orientalis

description: Glaresis orientalis Medvedev, 1976 (Figs. 11–20)
Glaresis orientalis Medvedev, 1976: 155, figs. 1–2.
Type locality. “Mongoliya, Sukhe-Batorskiy aimak [= nowadays Ömnögovi Province], peski [= dunes] Ongon Els, 15 km YUYUV Khongora [= SSE of Khongor] [original in Cyrillic]”.
Type material examined. Mongolia, Ömnögovi Province: Holotype: ♀ (ZMAS), “ Mongoliya, Sukhe-Batorskiy aimak | peski Ongon-Els | 15 km YUYUV Khongora || 5-6 VII 1971 (I. M. Kerzhner) [original in Cyrillic, printed]”.
Additional material examined. China, Nei Menggu: Alxa Left Banner, 11.vii.2011, Hu Zhiyong lgt., 1 ♀ (NMPC), 1 ♀ (IZAS). Mongolia, Bayankhongor Province: 8 km S von somon Zinst, 1400 m, 25.vi.1964, Exp. Dr. Z. Kaszab, 3 ♂♂ 1 ♀ (NMPC), 12 specimens (HNHM).
Diagnostic characters. Robust, strongly convex, weakly widened posteriad; brownish yellow in colour, slightly shiny; macrosetation pale (Figs. 11–12). Anterior margin of clypeus shallowly sinuate, distinctly upturned; lateral angles rounded; lateral margin bisinuate; posterior angles acute-angular (Fig. 14). Surface of frons and clypeus covered with sparsely, irregularly spaced, shiny tubercles (Figs. 12, 14). Pronotum with shallow medial longitudinal and anterior transverse grooves weakly impressed, lateral impressions strong, grooves beside longitudinal groove absent; posterior angles protruding in short tips (Figs. 11–12); surface covered with densely almost regular longitudinal carinae, each carina bearing thick, recumbent macroseta. Meso-metaventral plate flat, smooth; surrounded by a row of stout macrosetae; with darkened, transclucent, longitudinal endocarina medially (Fig. 15). Mesotibial fossae of mesometaventrum present, distinctly impressed, with sharp edges, divergent posteriad (Fig. 15). Posterior-superior margin of metafemora with weak protuberance (Figs. 19–20). Protibia tridentate (Figs. 11–12). Mesotibia long, nearly straight; distal part of outer edge of mesotibiae straight, bearing 7–9 short, stout spines; basal external tooth of mesotibia straight basally (Figs. 17–18). Metatibia broadly triangular, outer margin irregularly serrate with a median projection, strongly macrosetaceous (Fig. 20); row of 4 spine-bearing tubercles extending from base to apex medially (Fig. 19); inner margin smooth, macrosetaceous; apex of metatibia with outer horseshoe-shaped portion subequal to inner spur-bearing portion; inner margin of the horseshoe shape with a row of contiguous short macrosetae (Figs. 19–20). Aedeagus (Fig. 13) with parameres distinctly longer than phallobasis; parameres only weakly sclerotized, lateral margin nearly straight, almost truncate apically; tips acute; phallus sclerotized, sides straight, weakly convergent anteriad. Female differs from male in being indistinctly broader posteriad. Total body length: 4.3–4.5 mm.
Distribution. Central Asia: China (Inner Mongolia) and Mongolia (Bayankhongor, Ömnögovi).
Remarks. Glaresis orientalis was described by Medvedev (1976) based on a single female. Later, Nikolajev & Puntsagdulam (1984) synonymized this species with G. oxiana. Nikolajev & Puntsagdulam’s (1984) synonymy was subsequently rejected by Nikolajev (2006), who did so in a catalogue without providing any justification for the resurrection. Examination of the holotype showed some important characters for differentiating G. orientalis from G. oxiana (Zídek 2015). Study of considerably more material of both males and females from southern Mongolia and Inner Mongolia (China) by us has confirmed that Glaresis orientalis is a valid species. For a clearer differentiation see identification key below.
description: Published as part of Král, David, Hrůzová, Lucie, Lu, Yuanyuan & Bai, Ming, 2017, First records of Glaresidae (Coleoptera) in China, with the description of a new species from Inner Mongolia and Shaanxi, pp. 145-150 in Zootaxa 4306 (1) on page 148, DOI: 10.11646/zootaxa.4306.1.11, http://zenodo.org/record/843081