Theridiosoma triumphalis, Zhao, Qingyuan & Li, Shuqiang, 2012

Zhao, Qingyuan & Li, Shuqiang, 2012, Eleven new species of theridiosomatid spiders from southern China (Araneae, Theridiosomatidae), ZooKeys 255, pp. 1-48 : 17-19

Theridiosoma triumphalis sp. n. Figs 2425

Material examined.

Holotype: CHINA, Hainan: Mt. Jianfengling National Nature Reserve: Tianchi watershed, 18°44.383'N, 108°51.062'E, elevation ca 888 m, 19 July 2007, S. Li (IZCAS), 1 male.

Etymology.

The specific Latin word ‘triumphalis’ meaning 'of victory’ refers to the 'V'-shaped conformation made by the two embolic apophysis fragments (Figs 24A, B, 25B); adjective.

Diagnosis.

Males distinguished from other described Asian Theridiosoma species by the shape of median apophysis: a small, curved projection with an attenuated tip extending distoventrally (Fig. 24B). Embolic apophysis fragmented, similar to Theridiosoma caaguara ( Rodrigues and Ott 2005: figs 4, 5), but different in details: four pieces of different shapes, the longest one with a whip-like tip, the longer one broad, with a blunt end (Fig. 24C).

Description.

Carapace yellow tan. Sternum yellow with dark margins. Legs yellow. Due to poor preservation condition, abdomen too shriveled to make out its original color pattern.

Male pedipalp: Patella with strong macroseta. Paracymbium elongate with attenuated tip. Tegulum smooth with tuberculate ventral ridge. Median apophysis curved lobe with attenuated distal end. Conductor translucent theca covering most fragmented embolic apophysis, with a small rough ventral area (Fig. 24A). Two embolic apophysis fragment tips protruding out of the conductor tip to form a 'V'-shaped conformation (Fig. 24B). Embolic apophysis with four separate sclerotic fragments (Figs 24C, 25A).

Male: Total length 1.7, carapace 0.50 long, 0.50 wide, clypeus 0.09, sternum 0.31 long, 0.31 wide, coxae IV separated by their width. Posterior median eyes separated by less than half their diameter. Macrosetae: Leg I: femur r 1, patella d 1, tibia d 1, p 1; Leg II: patella d 1, tibia d 2, p 1; Leg III: tibia p 1; Leg IV: tibia d 1. Metatarsal trichobothria: Tm I: 0.21; Tm II: 0.27; Tm III: 0.20. Leg measurements: I 2.01 (0.63, 0.25, 0.50, 0.38, 0.25); II 1.76 (0.50, 0.25, 0.38, 0.38, 0.25); III 1.33 (0.30, 0.13, 0.15, 0.25, 0.15); IV 1.14 (0.38, 0.13, 0.25, 0.25, 0.13).

Female unknown