Steatoda terebrui, Gao & Li, 2014

Gao, Cai-Xia & Li, Shu-Qiang, 2014, Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China, Zoological Systematics 39 (1), pp. 1-135 : 84-87

Steatoda terebrui sp. nov. ( Figs 68–70 )

Holotype ♂, China, Yunnan, Xishuangbanna, Menglun Nature Reserve , secondary tropical montane evergreen broad-leaved forest (21º54.767'N, 101º11.431'E), 19–26 May 2006, Guo Zheng leg.

Etymology. The specific name derives from the Latin noun terebrum and means auger, in reference to the embolus screwed.

Diagnosis. The new species differs from other species of the genus by having the embolus screwed and the conductor encircling the embolus.

Male. Total length 2.75. Prosoma 1.10 long, 1.18 wide, flat, yellow, with black stripes, 6 long setae. Sternum 0.65 long, 0.65 wide, yellow, with dark spots and long setae. Opisthosoma 1.50 long, 0.98 wide, pale, with black, white spots, without colulus. Eye measurements: AME 0.11, ALE 0.11, PME 0.11, PLE 0.11, AME-AME 0.09, AME-ALE 0.05,

© Zoological Systematics, 39 (1): 1–135

PME-PME 0.11, PME-PLE 0.11. Clypeus height about 2.78 times AME diameter, yellow. Chelicerae: yellow, with 2 anterior teeth. Endites: 0.50 long, 0.19 wide, yellow, with black spots, brown pro-edges. Labium fused with sternum, 0.13 long, 0.25 wide, with 6 setae, yellow. Leg measurements: I 10.66 (2.80, 0.68, 2.80, 3.25, 1.13); II 6.63 (1.88, 0.60, 1.60, 1.80, 0.75); III 4.69 (1.30, 0.38, 0.78, 1.60, 0.63); IV 5.77 (1.80, 0.38, 1.38, 1.58, 0.63). Leg I coxa yellow, without spot; femur yellow, with black ring; patella yellow, with black spot; tibia yellow, with black ring; metatarsus yellow, with brown spot; tarsus yellow; femur with 2 rows of spines, patella with 4 spines; tibia with many spines, trichobothria; metatarsus and tarsus with many spines. Legs II–IV similar to leg I, femur II–IV yellow, with black spot. Pedipalpus ( Figs 68A–B , 69A–B , 70A–D ): tibia yellow, with 1 trichobothrium; cymbium yellow, with black spot, crenulated setae; paracymbium hooded; subtegulum triangular; tegulum with ridge; median apophysis smooth, without protrusion; embolus long, strong, screwed; conductor coiled around embolus, terminally membranous, with hooked protrusion.

© Zoological Systematics, 39 (1): 1–135

© Zoological Systematics, 39 (1): 1–135

Female. Unknown.

Distribution. Only known from type locality (Yunnan).

Figures

Fig. 68. Steatoda terebrui sp. nov., holotype male. A. Pedipalpus, prolateral view; B. Pedipalpus, retrolateral view. Scale bar = 0.10mm.

Fig. 69. Steatoda terebrui sp. nov., holotype male. A. Pedipalpus, ventral view; B. Embolus, ventral view. Scale bar = 0.10 mm.

Fig. 70. Steatoda terebrui sp. nov., holotype male. A. Pedipalpus (cymbium removed), ventral view; B. Pedipalpus, ventral view; C. Pedipalpus, prolateral view; D. Pedipalpus, retrolateral view. Scale bars = 0.10mm.