Sathytes xizangensis Yin & Shen 2020, sp. nov.
Creators: name: Yin, Zi-Wei
name: Shen, Qi
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Sathytes
Sathytes xizangensis

description: Sathytes xizangensis sp. nov.
urn:lsid:zoobank.org:act: F9F70319-A210-4FAC-A99E-1176460E4E55
Fig. 16
Differential diagnosis
The male of S. xizangensis sp. nov. is morphologically similar to that of S. grandis (Nepal), S. chayuensis sp. nov. (China: Xizang), S. magnus (China: Xizang) and S. tangliangi (China: Yunnan) in sharing the single basal protuberance of antennomere 11 and oblique mesal margin of antennomere 9. It can be separated from S. grandis and S. magnus by the much smaller body size (2.53–2.73 mm vs 3 mm for S. grandis and 3.36 mm for S. magnus) and more distal position of the apophysis of antennomere 9; from S. chayuensis sp. nov. by the much shorter antennomere 11; and from S. tangliangi by the larger basal protuberance and more distal position of the apophysis of antennomere 9.
Etymology
The new species is named after Xizang Province (= Tibet), where the type locality of this species is situated.
Type material (29 specimens)
Holotype
CHINA • ♂; Xizang, Nyingchi, Pailong Country; 30°0′34.71″ N, 94°57′57.64″ E; alt. 2190 m; 15 Jul.– 1 Aug. 2019; Z.-W. Yin leg.; FIT (flight intercept trap); SNUC.
Paratypes
CHINA • 23 ♂♂, 2 ♀♀; same collection data as for holotype; SNUC • 2 ♂♂; Xizang, Linzhi City, Pailong Village; alt. 2069 m, 30°01′11.11″ N, 95°00′0.46″ E; 15 Mar. 2017; X.-B. Song leg.; SNUC • 1 ♂; Xizang, Linzhi City, near Pailong village; 30°01′10″ N, 94°59′48″ E; alt. 2040 m; 6 Jul. 2018; Cheng, Peng and Shen leg.; mixed leaf litter, sifted; SNUC.
Description
Male
MEASUREMENTS. AeL = 0.22 mm; AnL = 1.25–1.29 mm; AL = 0.65–0.73 mm; AW = 0.82–0.88 mm; TBL = 2.53–2.73 mm; EL = 0.76–0.83 mm; EW = 0.95–1.01 mm; HL = 0.55–0.58 mm; HW = 0.46– 0.49 mm; LE = 0.17 mm; LT = 0.17 mm; PL = 0.57–0.59 mm; PW = 0.55–0.57 mm.
Body (Fig. 16A) reddish-brown, mouthparts and tarsi paler. Head longer than wide. Each eye composed of about 22 facets; LE: LT = 1. Antennal clubs (Fig. 16B) formed by antennomeres 9–11; inner margin of antennomere 9 (Fig. 16C) moderately oblique, semi-membranous apophysis at middle of mesal margin; antennomere 10 transverse, obconical; antennomere 11 (Fig. 16B) about 1.7 times as long as wide, each with single basal protuberance covered with tuft of setae at apex (Fig. 16D). Pronotum approximately as long as broad. Elytra moderately transverse. Abdomen widest at tergite 1 (IV) and narrowing apically. Aedeagus (Fig. 16E) almost symmetrical.
Female
MEASUREMENTS.AnL= 1.17–1.21 mm; AL = 0.77–0.78 mm; AW = 0.78–0.79 mm; TBL = 2.58–2.67 mm; EL = 0.71–0.73 mm; EW = 0.88–0.90 mm; HL = 0.54–0.58 mm; HW = 0.46–0.49 mm; LE = 0.15 mm; LT = 0.17 mm; PL = 0.56–0.58 mm; PW = 0.54–0.56 mm.
Similar to male in size. Each eye composed of about 20 facets; LE:LT = 0.9. Antennal clubs lacking modifications.
Distribution
China: Xizang.
description: Published as part of Yin, Zi-Wei & Shen, Qi, 2020, Fifteen new species of Sathytes Westwood from China (Coleoptera, Staphylinidae, Pselaphinae), with an updated checklist of world species, pp. 37-74 in European Journal of Taxonomy 722 on pages 63-65, DOI: 10.5852/ejt.2020.722.1133, http://zenodo.org/record/4134339