Megalinus boki
Creators: name: ZHOU, YU-LINGZI
name: BORDONI, ARNALDO
name: ZHOU, HONG-ZHANG
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Megalinus
Megalinus boki

description: <i>Megalinus boki</i> (Bordoni, 2000) (Fig. 8A–E; Fig. 8-1A–F) Bordoni, 2000: 131 (<i>Lepidophallus</i>; Type locality: N. China: Shaanxi, Nan Wutai); Herman, 2001a: 3659 (catalog); Bordoni, 2002: 648 (redescriptions; characters; Sichuan, Yunnan, Guizhou, Zhejiang); Bordoni, 2003c: 268 (Yunnan, Sichuan, Guizhou, Zhejiang); Smetana, 2004: 689 (catalog; Guizhou, Sichuan, Shaan, Shanxi, Yunnan, Zhejiang); Bordoni, 2008: 58 (<i>Megalinus</i>; species list of <i>Megalinus</i>). <b>Addtional material:</b> one male, <b>CHINA: Chongqing:</b> Wushan co.: Liziping (E 110.0089, N 31.2005), 1850 m, 18. V.1994, collected by Li Wenzhu <b>(IZ-CAS)</b>. <b>Male</b>. Abdominal segment VIII entirely covered with setiferous punctures, except a narrow medial longitudinal impunctate band; posterior margins of tergite VIII slightly protruding backwards, that of sternite VIII distinctly protruding backwards medially (Fig. 8-1A, B). Tergite IX symmetrical, connected mediobasally. Sternite IX symmetrical, with bisinuate mediobasal margin and distinctly emarginated posterior margin (Fig. 8-1C). Tergite X with subtruncated base and emarginated apex (Fig. 8-1D), <i>in situ</i> broadly exposed between tergite IX. Median lobe of aedeagus broad, large sized (Fig. 8D, E; Fig. 8-1E, F), basal piece without transparent, membranous medial-longitudinal band; basal bulb 1.13 mm long; anterior portion short, tapered apically, nearly 1/10 of basal bulb length. Parameres symmetrical and thin, shorter than 1/3 of basal bulb length. Internal sac composing of four groups of symmetrical scales, central two groups 8-shaped, lateral two of four paired large notched structures. <b>Distribution.</b> China (Sichuan, Shaanxi, Guizhou, Yunnan, Zhejiang). <b>Remarks.</b> This species could be distinguished from its congeners by: 1) dorsal surface of head with round, deep and medium-sized punctures, interspaces between punctures 1–2 punctures’ diameter, which mixed with smaller punctures, mainly on anterior half, especially denser on frontal region; 2) mesoscutellum shiny, extensively covered with polygonal reticulum; 3) posterior margins of tergite VIII slightly protruding backwards, that of sternite VIII distinctly protruding backwards medially; 4) sternite IX symmetrical, with bisinuate mediobasal margin and distinctly emarginated posterior margin; 5) tergite X with subtruncated base and emarginated apex; 6) median lobe of aedeagus broad, large sized, basal piece without transparent, membranous medial-longitudinal band; basal bulb 1.13 mm long; anterior portion short, tapered apically, nearly 1/10 of basal bulb length; 7) internal sac composing of four groups of symmetrical scales, central two groups 8-shaped, lateral two of four paired large notched structures. Although this species possesses quite similar external morphologies (Fig. 8A–C) to <i>Megalinus flavus</i> (Bordoni), the differences of above points 3–7 could be easily found between the two species.
description: Published as part of <i>ZHOU, YU-LINGZI, BORDONI, ARNALDO &amp; ZHOU, HONG-ZHANG, 2013, Taxonomy of the genus Megalinus Mulsant &amp; Rey (Coleoptera: Staphylinidae, Xantholinini) and seven new species from China, pp. 1-66 in Zootaxa 3727 (1)</i> on page 30, DOI: 10.11646/zootaxa.3727.1.1
description: {"references": ["Bordoni, A. (2000) Contribution to the knowledge of the Xantholinini from China. 1. (Coleoptera, Staphylinidae). Mitteilungen aus dem Museum fuer Naturkunde in Berlin Zoologische Reihe, 76, 121 - 133.", "Herman, L. H. (2001 a) Catalog of the Staphylinidae (Insecta: Coleoptera). 1758 to the end of the second millennium. VI. Staphylinine group (part 3) Staphylininae: Staphylinini (Quediina, Staphylinina, Tanygnathinina, Xanthopygina), Xantholinini. Staphylinidae incertae sedis. Fossils, Protactinae. Bulletin of the American Museum of Natural History, 265, 3021 - 3839.", "Bordoni, A. (2002) Xantholinini della Regione Orientale (Coleoptera: Staphylinidae). Classificazione, filogenesi e revisione tassonomica. Museo Regionale di Scienze Naturali Torino, Monografie, 33, 1 - 998.", "Bordoni, A. (2003 c) Contribution to the knowledge of Xantholinini from China. II. (Coleoptera, Staphylinidae). Fragmenta Entomologica, 34, 255 - 292. http: // dx. doi. org / 10.1002 / mmnz. 20000760111", "Smetana, A. (2004) Staphylinidae, tribe Xantholinini. In: Lobl, I. &amp; Smetana, A. (Eds.), Catalogue of Palaearctic Coleoptera, pp. 687 - 698.", "Bordoni, A. (2008) Lepidophallus Coiffait is a synonym of Megalinus Mulsant &amp; Rey (Coleoptera, Staphylinidae, Xantholinini) 184 contribution to the knowledge of Staphylinidae. Onychium: Bollettino del Gruppo Entomologico Toscano, 6, 54 - 59."]}