Sathytes huapingensis, 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 : 46-47

Sathytes huapingensis sp. nov.

urn:lsid:zoobank.org:act:BD4DFA36-F5F8-452C-8CB6-7D8276F97154

Fig. 5

Differential diagnosis

The male of S. huapingensis sp. nov. possesses a roundly triangular basal protuberance of antennomere 11, similar to that of S. chengzhifeii sp. nov. ( China: Yunnan) and S. larifuga (Borneo: Sabah). Sathytes huapingensis sp. nov. can be separated from S. chengzhifeii sp. nov. by the smaller body size (2.49 mm vs 2.69–2.81 mm), and the more distal and more basal positions of the protuberance and apophysis of antennomeres 11 and 9, respectively; and from S. larifuga by the relatively much smaller eyes in relation to the head, much narrower apical portion of the median lobe of the aedeagus, and a different distribution.

Etymology

The new species is named after Huaping Nature Reserve, where the type locality of this species is situated.

Type material (1 specimen) Holotype

CHINA • ♂; Guangxi Prov, Lingui County (DOEn), Huaping N. R. (Ẇṃon'ẉợṵ), Anjiangping (Ȑữṃ); alt. 1200 m; 13–16 Jul. 2011; Tang L. and He W.-J. leg.; SNUC.

Description

Male

MEASUREMENTS. AeL = 0.25 mm; AnL = 1.39 mm; AL = 0.61 mm; AW = 0.80 mm; TBL = 2.49 mm; EL = 0.82 mm; EW = 0.93 mm; HL = 0.48 mm; HW = 0.53 mm; LE = 0.18 mm; LT = 0.13 mm; PL = 0.58 mm; PW = 0.55 mm.

Body ( Fig. 5A ) reddish-brown, mouthparts and tarsi paler. Head slightly wider than long. Each eye composed of about 16 facets; LE:LT = 1.4. Antennal clubs ( Fig. 5B ) formed by antennomeres 9–11; antennomere 9 ( Fig. 5C ) sub-quadrate, each with semi-membranous apophysis at basal ¹/5 of mesal margin; antennomere 10 strongly transverse, obconical; antennomere 11 ( Fig. 5B ) about 1.5 times as long as wide, each with single large, blunt, short protuberance close to bases, covered with sparse setae at apex ( Fig. 5D ). Pronotum slightly longer than broad. Elytra strongly transverse. Abdomen widest at tergite 1 (IV) and narrowing apically. Aedeagus ( Fig. 5E ) elongate and slightly asymmetrical at apex.

Female

Unknown.

Distribution

China: Guangxi.

Figures

Fig. 5. Sathytes huapingensis sp. nov., ♂. A. Dorsal habitus. B. Antennal club. C. Antennomere 9. D. Modification of antennomere 11, enlarged. E. Aedeagus, ventral view. Scale bars: A = 0.5 mm; B = 0.2 mm; C, E = 0.1 mm; D = 0.05 mm.