Tmarus hastatus, Tang, Guo & Li, Shu-Qiang, 2009

Tang, Guo & Li, Shu-Qiang, 2009, The crab spiders of the Genus Tmarus from Xishuangbanna, Yunnan, China (Araneae: Thomisidae), Zootaxa 2223, pp. 48-68 : 54

Tmarus hastatus sp. nov.

Figs 4A–D , 5A – B

Type material: Holotype: male, CHINA, Yunnan: Xishuangbanna, Mengla County, Menglun Town, Rubber-Tea Plantation (N21º55.551', E101º16.923', alt. 561 m), 19–26 April 2007, G. Zheng leg.

Etymology. The specific name comes from the Latin adjective hastatus and means hastate (halberdshaped), refers to the shape of the palpal RTA, adjective.

Diagnosis. This new species can be separated from other Tmarus by the unique hastate shape of the RTA.

Description. Male (holotype): Total length 3.50. Prosoma length 1.50, width 1.30; opisthosoma length 2.10, width 0.85. Prosoma brown with short setae, carapace with a triangle grayish white marking. Tubercle grayish black. Clypeus with 6 long setae. Chelicerae yellow, gnathocoxae, labium and sternum light yellow. Eye measurements: AME 0.06; ALE 0.11; PME 0.07; PLE 0.11; AME–AME 0.10; AME–ALE 0.12; PME– PME 0.16; PME–PLE 0.26. MOA length 0.29 with front width 0.20 and back width 0.30, Legs yellow. Leg formula: 1243; leg measurements: I: 7.00 (2.10, 2.50, 1.50, 0.90); II: 6.40 (2.00, 2.30, 1.30, 0.90); III: 3.10 (0.90, 1.20, 0.50, 0.50); IV: 3.50 (1.30, 1.20, 0.50, 0.50). Opisthosoma dorsum grayish brown with grayish white markings, venter grayish black.

Palp ( Figs 4B–D , 5A – B ). Palp VTA short, with sharp apex; RTA halberd-shaped, with wide base, bifid apex, curved and sharp dorsal branch, tegulum swollen, embolus peg like, with wide base, sharp apex.

Female: Unknown.

Distribution. China (Yunnan).

Figures

FIGURES 4 A – D. Tmarus hastatus sp. nov. A Male habitus, dorsal view; B – D Male palp (B ventral, C prolateral, D retrolateral). Scale bars: A = 1.0 mm; B – D = 0.1 mm.

FIGURES 5 A – B. Tmarus hastatus sp. nov. A – B Male palp (A ventral, B retrolateral). E = embolus; RTA = retrolateral tibial apophysis; VTA = ventral tibial apophysis. Scale bars: A – B = 0.1 mm.