Dicristatus denticulatus Irfan, Zhang & Peng, sp. n.

(ùä二叉e)

Figures 45–47, 310

Types. Holotype ♂ (HNU–GZ– IV–1407), CHINA, Guizhou Prov.: Maoxi, Wuluo Town, Fanjingshan NNR, 28.02256°N, 108.77995°E, 1277 m, 31.VII.2014, X.J. Peng et al. leg.

Etymology. The specific epithet is derived from the Latin adjective “denticulatus ” meaning “furnished with small tooth”, referring to the dorsal tibial apophysis ventrally with two projections with teeth in male palp.

Diagnosis. Dicristatus denticulatus sp. n. resembles D. minutus in having the similar distal suprategular apophysis and small embolus hardly seen on undissected palp (Figs 45A–D, 46A–D; Irfan et al. 2023, figs 10A–E), but can be distinguished by the dorsal tibial apophysis upper comb-shaped projection tip with 3 teeth and lower projection with 5 teeth in D. denticulatus sp. n. (Fig. 56D; vs. with 7 teeth); embolus tip furcated in D. denticulatus sp. n. (Fig. 56A, C; not furcated).

Description. Male (Figs 47A, B): Total length: 1.42: Carapace 0.66 long, 0.51 wide, the cephalic region slightly elevated, yellow, fovea, cervical and radial grooves distinct. Clypeus 0.16 high. Chelicerae with five promarginal and six retromarginal teeth. Sternum longer than wide, shield-like, yellowish with microsetae. Eyes: AER recurved, PER straight, wider than AER. Eye sizes and interdistances: AME 0.04, ALE 0.06, PME 0.06, PLE 0.05, AME–AME 0.02, PME–PME 0.04, AME–ALE, 0.02, PME–PLE 0.04, AME–PME 0.03, ALE–ALE 0.22, PLE–PLE 0.24, ALE–PLE contiguous. Length of legs: I 2.36 (0.66, 0.81, 0.51, 0.38), II 2.11 (0.61, 0.70, 0.46, 0.34), III 1.75 (0.53, 0.53, 0.40, 0.29), IV 2.29 (0.65, 0.79, 0.51, 0.34). Tibial spine formula: 2-2-1-1. TmI 0.28 and TmIV absent. Opisthosoma 0.79 long, 0.49 wide, oval, pale.

Palp (Figs 45A–D, 46A–D): Femur unmodified, almost longer than both patella and tibia. Patella shorter than tibia. Tibia with one retrolateral and one dorsal trichobothria, dorsal tibial apophysis (DTA) ventrally with two strongly sclerotized comb-like projections with teeth, retro-margin of dorsal tibia apophysis with two rows of thick comb macrosetae. Cymbium retrolateral margin with large cymbial retrobasal process (RBP), with a semi disc-shaped projection, pointing towards the tibia with blunt end; paracymbium (PC) sclerotized, J-shaped; tegulum (T) with a small protegulum (PT) with blunt end; suprategulum (SPT) with a long sclerotized median tooth, the distal suprategular apophysis (DSA) long, distal tip broad with bifurcated end. Radix (R) with a broad anterior radical projection (ARP); tailpiece (TP) slightly curved, with blunt tip; embolic membrane (EM) long, curved; embolus (E) sclerotized, stout, almost completely covered by the distal suprategular apophysis and the anterior radical projection.

Female. Unknown.

Distribution. Known only from the type locality (Guizhou Province, Fig. 310).