A survey of Agroeca Westring, 1861 from China (Araneae: Liocranidae) Author Mu, Yannan The Key Laboratory of Invertebrate Systematics and Application, College of Life Sciences, Hebei University, Baoding, Hebei 071002, P. R. China Author Jin, Chi College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Heibei 056006, P. R. China Author Zhang, Feng The Key Laboratory of Invertebrate Systematics and Application, College of Life Sciences, Hebei University, Baoding, Hebei 071002, P. R. China & The Museum of Hebei University, Baoding, Hebei 071002, P. R. China dudu06042001@163.com text Zootaxa 2019 2019-06-12 4615 1 91 112 journal article 21180 10.11646/zootaxa.4615.1.4 e10913e0-44a0-4eab-9d19-cc655e790372 1175-5326 3995359 0C472D3D-A849-4BED-87D7-127683FFF524 Agroeca nigra sp. n. Figs 9 , 11 A–C Type material. Holotype ♂ , CHINA : Ningxia Hui Autonomous Region , Guyuan City , Jingyuan County , Dawan Town , Xigou Village ( 35°46.440′N , 106°16.492′E ), 1940 m a.s.l. , 23 Aug 2017 , leg. Xiao Zang. Paratypes : 4♂ , same data as the holotype . Etymology. The specific name is a Latin adjective meaning “black”. It refers to the colour of the body. Diagnosis. The new species is similar to A. mongolica , but can be distinguished by: 1) the narrow subtegulum ( vs wide); 2) the presence of one lateral apophysis on the sheet-like embolus ( vs two); 3) the beak-like medium apophysis, with a straight tip ( vs the tip of MA curved down); and 4) the short, thick RTA ( vs long). Female unknown. Description. Male. Holotype ( Figs 9 A–D) total length 4.41. Carapace 2.24 long, 1.81 wide; abdomen 2.17 long, 1.56 wide. Carapace deep brown, margin dark. Two longitudinal black bands mediolaterally, with distinct radial groove, fuzzy cervical groove laterally of fovea; fovea dark reddish-brown. Sternum brown, with two lighter brown patches. Eye sizes and interdistances: ALE 0.11, PLE 0.09, PME 0.11, AME 0.10, AME–AME 0.04, AME–ALE 0.05, PME–PME 0.11, PME–PLE 0.10. MOA 0.25 long, 0.31 posterior wide, 0.24 anterior wide. Legs fuscous; tibia I and II with two pairs of ventral spines. Metatarsi I and II with three pairs of ventral spines. Measurements of legs: leg I 6.36 (1.77+0.88+1.51+1.20+1.00), leg II 5.75 (1.57+0.88+1.27+1.12+0.91), leg III 5.52 (1.50+0.74+1.10+1.3 5+0.83), leg IV 8.11 (2.10+0.91+1.77+2.22+1.11). Palp ( Figs 9 E–G, 11A–C) as illustrated. Palp grey, tegulum brown. RTA short and thick, with two outgrowths distally; embolus sheet-shaped, with broad base and one lateral upward apophysis; tip curved and thin; conductor membranous; median apophysis beak-like, needle-shaped apically. Tegulum wide, with faint sperm duct. Distribution. Known only from the type locality ( Fig. 17 ).