Myrmarachne hamata Wang, Mi & Peng sp. nov.

urn:lsid:zoobank.org:act: 4F507416-3043-4021-83D0-C9D379308A4E

Figs 7, 57

Diagnosis

Myrmarachne hamata sp. nov. can be easily distinguished from other congeners by the RTA curved into a reverse C-shape medially and forming a hook at the distal end in retrolateral view (Fig. 7C, G), whereas without similar RTA in others (Metzner 2023).

Etymology

The specific name comes from the Latin ‛ hamatus ’, which means ‛hook-shaped’, and refers to the RTA forming a hook at distal end in retrolateral view; adjective.

Type material

Holotype

CHINA • ♂; Guizhou, Xingren County, Luchuying Township, Qingshuihe Nature Reserve, Mabaoshu Grand Canyon; 25°17.79′ N, 104°56.13′ E; 1270 m a.s.l.; 3 Aug. 2016; C. Wang et al. leg.; TRU-JS 0084.

Paratypes

CHINA • 2 ♂♂; same collection data as for holotype; TRU-JS 0085–0086 .

Description

Male (holotype)

MEASUREMENTS. Total length 6.04. Carapace 3.09 long, 1.85 wide. Abdomen 3.05 long, 1.64 wide. Eye sizes and interdistances: AME 0.53, ALE 0.34, PLE 0.33, AERW 1.73, PERW 1.85, EFL 1.31. Legs: I 7.99 (2.10, 1.28, 2.63, 1.30, 0.68), II 5.84 (1.73, 0.85, 1.58, 1.13, 0.55), III 6.36 (1.85, 0.88, 1.50, 1.50, 0.63), IV 9.21 (2.80, 1.08, 2.40, 2.20, 0.73).

HABITUS. Carapace red-brown to dark brown, covered with thin setae, with indistinct dark patch anteromedially on elevated cephalic region (Fig. 7D–E). Chelicerae yellow, with seven teeth on both retromargin and promargin (Fig. 7H). Sternum about 2.6 times as long as wide (Fig. 7F). Legs pale yellow to red-brown, with three, seven, and two pairs of ventral macrosetae on patellae, tibiae, and metatarsi I, respectively. Abdomen elongate-oval, dorsum dark brown, without patterns; venter brown to dark brown, covered with dark setae medially (Fig. 7D–F).

PALP. Tibia longer than wide, with lamellar tibial flange fused with RTA basally; RTA curved into reverse C-shape at middle and forming hook distally in retrolateral view; cymbium setose, with cluster of dark setae near distal portion of RTA; bulb flat, round; embolus slender, coiled with about two spirals (Fig. 7A–C).

Female

Unknown.

Distribution

China (Guizhou) (Fig. 57).