Sathytes panzhaohuii, 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 : 53-55

Sathytes panzhaohuii sp. nov.

urn:lsid:zoobank.org:act:F8372711-164B-4B3F-B9EC-98B98BA84813

Fig. 10

Differential diagnosis

The male of S. panzhaohuii sp. nov. has antennomere 11 each bearing a wide basal protuberance with two tufts of apical setae, a condition unique within the genus which allows ready identification of the new species.

Etymology

The new species is named after Prof Zhao-Hui Pan, who kindly provided logistic support during our field work in Xizang.

Type material (17 specimens)

Holotype

CHINA • ♂; Xizang, Nyingchi (Wżm), Pailong Country (IJAEø); 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 • 5 ♂♂, 1 ♀; same collection data as for holotype; SNUC • 1 ♂, 1 ♀; Xizang, Linzhi City (Wżm), near Changxi Vill. (āuLj); 30°14′52″ N, 94°47′55″ E; alt. 2380 m; 7 Jul. 2018; Cheng, Peng and Shen leg.; mixed leaf litter, sifted; SNUC • 3 ♀♀; same collection data as for previous; near Pailong village (IJAEø); 30°01′10″ N, 94°59′48″ E; alt. 2040 m; 6 Jul. 2018; SNUC • 1 ♂, 2 ♀♀; Xizang, Bomi County (Öṁn), Yigong Country (ĦĤø); 30°10′18.93″ N, 94°56′8.34″ E; alt. 2335 m; 20 Jul. 2019; Z.-W. Yin leg.; leaf litter / fungus; SNUC • 2 ♂♂; Xizang, Chayu Co., Xiachayu To. , Talin Bridge ; 28.53340539° N, 96.97800188° E; alt. 1541 m; 30 Jul. 2019; Liang Lü leg.; SNUC .

Description

Male

MEASUREMENTS. AeL = 0.19 mm; AnL = 1.05–1.07 mm; AL = 0.54–0.56 mm; AW = 0.72–0.85 mm; TBL = 2.13–2.24 mm; EL = 0.63–0.65 mm; EW = 0.82–0.85 mm; HL = 0.48–0.51 mm; HW = 0.44– 0.46 mm; LE = 0.15 mm; LT = 0.17 mm; PL = 0.48–0.52 mm; PW = 0.46–0.49 mm.

Body ( Fig. 10A ) reddish-brown, mouthparts and tarsi paler. Head moderately longer than wide. Each eye composed of about 18 facets; LE:LT = 0.9. Antennal clubs ( Fig. 10B ) formed by antennomeres 9–11; antennomere 9 ( Fig. 10C ) moderately elongate, each with long semi-membranous apophysis at apical ²/5 of mesal margin; antennomere 10 strongly transverse, obconical; antennomere 11 ( Fig. 10B ) about 1.6 times as long as wide, each with single broad basal protuberance covered with two tufts of setae at apex ( Fig. 10D ). Pronotum about as long as broad. Elytra transverse. Abdomen widest at tergite 1 (IV) and narrowing apically. Aedeagus ( Fig. 10E ) slightly broad and almost symmetrical.

Female

MEASUREMENTS.AnL= 0.94–1.04 mm; AL = 0.54–0.56 mm; AW = 0.72–0.85 mm; TBL = 2.12–2.37 mm; EL = 0.58–0.68 mm; EW = 0.81–0.90 mm; HL = 0.52–0.58 mm; HW = 0.46–0.50 mm; LE = 0.13 mm; LT = 0.21 mm; PL = 0.48–0.55 mm; PW = 0.46–0.53 mm.

Similar to male in size. Each eye composed of about 14 facets; LE:LT = 0.6. Antennal clubs lacking modifications.

Distribution

China: Xizang.

Figures

Fig. 10. Sathytes panzhaohuii sp. nov., ♂ (population of Pailong). 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.