Taxonomic study on Sathytes Westwood (Coleoptera: Staphylinidae: Pselaphinae) from China. Part I Author Yin, Zi-Wei Author Li, Li-Zhen Author Zhao, Mei-Jun text Journal of Natural History 2012 2012-04-30 46 13 - 14 831 857 http://dx.doi.org/10.1080/00222933.2011.651651 journal article 10.1080/00222933.2011.651651 1464-5262 5199684 Sathytes magnus Yin and Li , sp. nov. ( Figures 2A , 3F , 4F , 7F , 8F ) Type material Holotype . Male , labelled ‘ CHINA : Xizang A. R. / Motuo County / Hanmi / alt. 2200 m / 19 August 2005 / Liang TANG leg .’; Paratype : 1 female , same label data as holotype . Description Male. Body ( Figure 2A ) reddish brown, mouthparts and tarsi lighter; BL 3.36. Head ( Figure 3F ) about as long as wide, HL 0.65, HW 0.66. Vertexal foveae moderately developed, anterior edge of foveae located posterior to level of posterior margin of eyes; LE: LP = 1: 1. Eyes well-developed, prominent, each comprises about 25 facets. Antennae with scapes thick and large; pedicels larger than antennomeres III, III–VIII subequal in width, IX–XI ( Figure 4F ) strongly clubbed; semi-membranous apophysis on antennomere IX as in Figure 7F ; antennomere X much wider than long, XI with single blunt basal protuberance densely covered with tuft of long setae at apex. Pronotum longer than wide, PL 0.75, PW 0.70. Elytra combined slightly wider than long, EL 0.99, EW 1.29. Abdomen slightly wider than long, AL 0.97, AW 1.08; tergite IV 2.4 times as long as next. Length of aedeagus ( Figure 8F ) 0.32. Female. Similar to male in size: BL 3.61, HL 0.65, HW 0.65, PL 0.76, PW 0.74. Elytra combined wider than long, EL 0.94, EW 1.23, AL 1.26, AW 1.20. Eyes each comprises of about 15 facets. Habitat and distribution Sifted from the mixed leaf litter of a broad-leaved forest. Southwest China ( Xizang ). Etymology The specific name refers to the large size of the species. Remarks This new species is united with S . montanus , S . grandis and S . tangliangi described below by sharing relatively large size, an elongate head, body densely covered by fine setae and similar structure of male antennomere IX. Sathytes magnus and S . grandis are larger species, no less than 3.00 mm. They may be readily separated by larger size (3.36), antennomere XI being broader, elytra being much wider in contrast to abdomen, and less elongate aedeagus in S . magnus .