Linan tendothorax Yin & Li

Yin, Zi-Wei & Li, Li-Zhen, 2012, Notes on Michael Schuelke's pselaphine collections from China. - Tyrini. I. genera Labomimus Sharp, Linan Hlavac and Pselaphodes Westwood (Coleoptera, Staphylinidae, Pselaphinae), ZooKeys 251, pp. 83-118 : 91-93

Linan tendothorax Yin & Li sp. n. Figs 6D10

Type material

(3 ♂♂, 14 ♀♀). Holotype: ♂, labeled 'CHINA: Yunnan, Lincang Pref., Xue / Shan, 11 km ENE Lincang, 2510 m, / 23°55'01"N, 100°11'17.5"E, second. / pine forest with Rhodod., small cleft with water, litter & mushrooms sifted, / 10.IX.2009, leg. M. Schülke [CH09-39]' (cSch). Paratypes: 1 ♂, 7 ♀♀, same label data as holo type (cSch, SNUC); 1 ♀, same label data, except 'D.W. Wrase’ (cSch); 3 ♀♀, labeled 'CHINA: Yunnan, Lincang Pref., / Laobei Shan, Wei Bo Shan pass, / 24°08'16"N, 99°42'53"E, 2375 m, / creek valley, devastated second. / decid. forest, litter & moss sifted, 8.IX.2009, leg. M. Schülke [CH09-35]' (cSch); 3 ♀♀, labeled 'CHINA (Yunnan) Lincang Pref., / Wuliang Shan, old pass road, W-side, / 2200 m (small creek valley with primary / forest remnant, litter, debris sifted) / 24°42'58.6"N, 100°29'52"E / 12.IX.2009 D.W. Wrase’ (cSch); 1 ♂, labeled 'CHINA: Yunnan, Pu’er Pref., / Ailao Shan, 37 km NW Jingdong, / 24°45'12"N, 100°41'24.5"E, 2300 m, / devastated forest remnant, litter & / dead wood sifted, 13.IX.2009, / leg. M. Schülke [CH09-48]' (cSch).

Diagnosis.

Reddish brown; length 2.80-2.95; postgenae rounded; antennomeres IX–XI enlarged, IX modified in the male; pronotum with lateral margins roundly expanded basolaterally; with short blunt metaventral processes; metacoxae spinose; aedeagus with asymmetric median lobe.

Description.

Male (Fig. 6D). Length 2.80-2.95. Head longer than wide, HL 0.65-0.66, HW 0.59-0.60; eyes each composed of about 17 facets. Antennal clubs as in Fig. 10A. Pronotum (Fig. 10B) about as long as wide, PL 0.61-0.62, PW 0.59-0.60, with round lateral margins. Elytra wider than long, EL 0.71-0.74, EW 1.08-1.09. Short metaventral processes with rounded apices (Fig. 10C). Protrochanters and profemora simple (Fig. 10D), protibiae with distinct small apical tubercle (Fig. 10E); mesotrochanters (Fig. 10F) with blunt triangular spine at ventral margin; metacoxae (Fig. 10G) with hook-like protuberance at ventral margin, metatrochanters and metafemora simple. Abdomen broad at base and narrowed apically, AL 0.83-0.93, AW 1.14-1.19. Sternite IX as in Fig. 10H. Aedeagus length 0.60, with asymmetric median lobe (Figs 10 I–K).

Female. Similar to male in general; BL 2.81-2.92, HL 0.64-0.66, HW 0.58-0.59, PL 0.60-0.62, PW 0.60-0.62, EL 0.70-0.72, EW 1.16-1.19, AL 0.87-0.92, AW 1.22-1.25. Eyes each composed of about 16 facets. Antennae lacking modification; metaventral processes absent.

Comparative notes.

Linan tendothorax is placed as a member of the Labomimus cardialis species-group (sensu Yin et al. 2011b) based on its strongly modified antennomeres IX–X. It can be separated from all known Linan species by the unique pronotum that is roundly expanded laterally at the basolateral margins.

Distribution.

Southwest China: Yunnan.

Biology.

Individuals were sifted from mixed litter, moss, debris and dead wood in primary or secondary deciduous forests.

Etymology.

The species name is combined from the Latin stem ‘tend’ and Greek word ‘thorax’, referring to the unique basolaterally extended pronotum of the new species.