Sathytes xizangensis, Yin & Shen, 2020

Yin, Zi-Wei & Shen, Qi, 2020, Fifteen new species of Sathytes Westwood from China (Coleoptera, Staphylinidae, Pselaphinae), with an updated checklist of world species, European Journal of Taxonomy 722, pp. 37-74 : 63-65

publication ID

https://doi.org/ 10.5852/ejt.2020.722.1133

publication LSID

lsid:zoobank.org:pub:B9393832-6F0C-4649-AF54-CAAF43234326

DOI

https://doi.org/10.5281/zenodo.4333601

persistent identifier

https://treatment.plazi.org/id/F9F70319-A210-4FAC-A99E-1176460E4E55

taxon LSID

lsid:zoobank.org:act:F9F70319-A210-4FAC-A99E-1176460E4E55

treatment provided by

Valdenar

scientific name

Sathytes xizangensis
status

sp. nov.

Sathytes xizangensis View in CoL sp. nov.

urn:lsid:zoobank.org:act:F9F70319-A210-4FAC-A99E-1176460E4E55

Fig. 16 View Fig

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.

GoogleMaps

Paratypes

CHINA • 23 ♂♂, 2 ♀♀; same collection data as for holotype; SNUC GoogleMaps 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 GoogleMaps 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 GoogleMaps .

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 View Fig ) reddish-brown, mouthparts and tarsi paler. Head longer than wide. Each eye composed of about 22 facets; LE: LT = 1. Antennal clubs ( Fig. 16B View Fig ) formed by antennomeres 9–11; inner margin of antennomere 9 ( Fig. 16C View Fig ) moderately oblique, semi-membranous apophysis at middle of mesal margin; antennomere 10 transverse, obconical; antennomere 11 ( Fig. 16B View Fig ) about 1.7 times as long as wide, each with single basal protuberance covered with tuft of setae at apex ( Fig. 16D View Fig ). Pronotum approximately as long as broad. Elytra moderately transverse. Abdomen widest at tergite 1 (IV) and narrowing apically. Aedeagus ( Fig. 16E View Fig ) 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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Sathytes

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