Yuqilin, Lin & Li, 2023

Lin, YeJie & Li, Shuqiang, 2023, On nine ground spiders from Xishuangbanna, China (Araneae, Gnaphosidae), including two new genera and seven new species, ZooKeys 1174, pp. 141-174 : 141

Genus Yuqilin gen. nov.

Type species.

Yuqilin lujunyi sp. nov.

Diagnosis.

Females of Yuqilin gen. nov. resemble the fallens group in Drassyllus Chamberlin, 1922 (see Platnick and Shadab 1982: figs 9, 17) morphologically by the epigynal plate with a large scape anteriorly (Fig. 23A ), wide copulatory ducts subparallel (Fig. 23B ) and spermathecae subglobular, located posteriorly (Fig. 23B ), but it differs in the following: epigynal plate without atrium (Fig. 23A ) (vs present) and copulatory ducts with anterior incision (Fig. 23B ) (vs absent). Males can be distinguished by the following characters: embolus as wide as bulb, wider than tegulum, with few apophyses, retro-proximal cymbial outgrowth present and condoctor absent (Figs 21B , 22A ).

Description.

Male (Fig. 24A, C, E, G, I ). Total length 3.96-5.21 (n = 6). Carapace red brown, with dark brown pattern, covered with few brown setae. Fovea longitudinal. Clypeus brown, covered with several setae. Chelicerae red-brown, with four promarginal and four retromarginal teeth. Endites pale brown. Labium pale brown, covered with brown setae. Sternum colored as endites, covered with brown setae. Legs brown, with a preening brush on metatarsi III and IV. Opisthosoma oval, venter brown with setae, dorsal scutum almost 1/3 the length of the opisthosoma. Spinnerets yellow brown.

Palp and palpal structures as in Figs 21A-C , 22A, B . Palpal femur almost 5 × longer than patella, curved, tip with spines. Tibia with stout retrolateral tibial apophysis (RTA). Cymbium longer than wide, with retro-proximal cymbial outgrowing (RPO). Subtegulum (ST) obvious. Tegular apophysis (TA) present. Conductor (C) absent. Embolus (E) complex, almost triangle shaped, as wide as bulb. Embolus proper (EP) straight, directed anteriorly, with large retrolateral lamina with spine-like apophyses.

Female (Fig. 24B, D, F, H, J ). Total length 4.01-5.51(n = 5). Habitus similar to those of male.

Epigynal plate (Fig. 23A, B ) longer than wide, with scape (SC) located anteriorly. Copulatory openings (CO) located anteriorly, slit-like, slightly arched, almost touching each other. Copulatory duct (CD) wide, laminar, with anterior incision (CDi). Spermathecae (S) small, subglobular, located posteriorly.

Etymology.

The genus is named after Yuqilin , nickname for one of the 108 outlaws in the classical Chinese novel 'Outlaws of the Marsh’; masculine in gender.

Composition.

The new genus currently includes only one species: Yuqilin lujunyi sp. nov.

Distribution.

China (Yunnan).

Comments.

This genus is not assigned to any of the known subfamilies.

Figures

Figure 21. Yuqilin lujunyi sp. nov., holotype male A prolateral view B ventral view C retrolateral view. Abbreviations: E = embolus, EA 1 - 6 = embolic apophysis 1 - 6, EP = embolus proper, RPO = retro-proximal cymbial outgrowth, RTA = retrolateral tibial apophysis, SD = sperm duct, ST = subtegulum, TA = tegular apophysis.

Figure 22. Yuqilin lujunyi sp. nov., paratype male A embolus, dorsal view B retrolateral tibial apophysis, dorsal view. Abbreviations: E = embolus, EA 1 - 6 = embolic apophysis 1 - 6, EP = embolus proper, H = hood, RTA = retrolateral tibial apophysis.

Figure 23. Yuqilin lujunyi sp. nov., paratype female A epigyne, ventral view B vulva, dorsal view. Abbreviations: CD = copulatory duct, CDi = copulatory duct anterior incision, CO = copulatory opening, FD = fertilization duct, S = spermatheca, SC = scape.

Figure 24. Yuqilin lujunyi sp. nov., male holotype (A, C, E, G, I) and female paratype (B, D, F, H, J) A, B habitus, dorsal view C, D eye area E, F chelicerae G, H spinnerets I, J metatarsi IV.