Amauropelma guangxi Lin & Li, 2022

Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, Zoological Systematics 47 (3), pp. 198-270 : 207-208

Amauropelma guangxi Lin & Li , sp. nov. ( Fig. 7 )

Diagnosis. The species resembles A. staschi Jäger, 2012 by having a similar embolus and retrolateral tibial apophysis ( Fig. 7 ) but can be distinguished by the sharp terminus of the tegular apophysis (vs. blunt in A. staschi ), by the sclerotized, triangular distal apophysis of the tegulum (vs. absent in A. staschi ) and the patella of the palp has a distinct retrolateral apophysis (vs. absent in A. staschi ).

Description. Male (holotype). Colouration in alcohol: Carapace, legs and abdomen pale yellow. Chelicerae brown. Eye sizes and interdistances: AME 0.09, ALE 0.14, PME 0.08, PLE 0.13, AME–AME 0.03, AME–ALE 0.04, PME–PME 0.03, PME–PLE 0.12, AME–PME 0.05, ALE–PLE 0.03. Leg measurements: I 6.73 (1.68, 2.63, 1.48, 0.94), II 5.87 (1.53, 2.18, 1.28, 0.88), III 5.36 (1.38, 1.84, 1.34, 0.80), IV 7.55 (1.83, 2.49, 2.15, 1.08). Leg formula 4123. Chelicerae with 3 promarginal, 4 retromarginal teeth, without denticles. Tarsi and metatarsi without scopula.

Palp ( Fig. 7 ). Retrolateral tibial apophysis projects at an almost right angle from tibia in ventral view, with 2 short apices. Patellar apophysis present. Cymbium tip slightly conical, prolateral cymbial bulge with distinct extension. Embolus arising at 9-o’clock-position from tegulum, with distinct membranous seam. Conductor arising at 12.30-o’clockposition from tegulum, bending retrolaterally. Tegular apophysis situated subcentrally on tegulum, terminus pointed.

Female. Unknown.

Material examined. Holotype ♂ (IZCAS-Ar43248), China: Guangxi, Hechi City, Huanjiang County, Dacai Township , Nuanhe Village , Longgong Cave (24.7738°N, 108.3856°E), 15 January 2018, Z. Chen leg.

Distribution. Known only from the type locality.

Etymology. The species name is a noun in apposition derived from the type locality.

Figures

Figure 7. Amauropelma guangxi Lin & Li, sp. nov., holotype male, left palp.A. Prolateral view; B. Ventral view; C. Retrolateral view. Abbreviations: C—conductor; E—embolus; MA—median apophysis; PCB—prolateral cymbial bulge; RPA—retrolateral patellar apophysis; RTA—retrolateral tibial apophysis. Scale bars=0.2mm.