Myrmarachne hamata Wang, Mi & Peng, 2023

Wang, Cheng, Mi, Xiao-Qi, Wang, Wei-Hang, Gan, Jia-Hui, Irfan, Muhammad, Zhong, Yang & Peng, Xian-Jin, 2023, Notes on twenty-nine species of jumping spiders from South China (Araneae: Salticidae), European Journal of Taxonomy 902, pp. 1-91 : 14-16

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 ).

Figures

Fig. 7. Male of Myrmarachne hamata Wang, Mi & Peng sp. nov. A–F, H. Holotype, ♂ (TRU-JS 0084). G. Paratype, ♂ (TRU-JS 0085). A–C. Palp. A. Prolateral view. B. Ventral view. C. Retrolateral view. D–F. Habitus. D. Dorsal view. E. Lateral view. F. Ventral view. G. Palpal tibia, retrolateral view. H. Chelicera, posterior view. Abbreviations: see Material and methods. Scale bars: A–C, G–H = 0.2 mm; D–F = 1.0 mm.

Fig. 57. Distributional records of Myrmarachne hamata Wang, Mi & Peng sp. nov., Phintella liae Wang, Mi & Peng sp. nov., P. panda Huang, Wang & Peng, 2015, Toxeus fodingensis Wang, Mi & Peng sp. nov. and Yaginumaella zabkai Wang, Mi & Peng sp. nov.