Emertonella serrulata, 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 : 45-50

Emertonella serrulata sp. nov. ( Figs 36–39 )

Holotype ♂, China, Yunnan, Xishuangbanna, Menglun Nature Reserve , secondary tropical montane evergreen broad-leaved forest (21º54.813'N, 101º12.634'E), 5 August 2007, Guo Zheng leg.

Paratype 1♀, Menglun Nature Reserve , secondary tropical montane evergreen broad-leaved forest (21º57.784'N, 101º11.947'E), 6 August 2007, Guo Zheng leg.

Etymology. The specific name derives from the Latin adjective serrulatus and means toothed, in reference to conductor with serrated edge.

Diagnosis. The new species is similar to E. emertoni , but can be distinguished by conductor slender, toothed on edge; and enveloping the embolus; copulatory ducts originate from small spermathecae.

Male (measurements of holotype). Total length 2.65. Prosoma 0.85 long, 0.75 wide, high, columned, brown, with black striae. Sternum 0.56 long, 0.56 wide, brown. Opisthosoma 1.85 long, 1.50 wide, brown, with large white stripes, many dark dents, without colulus. Eye measurements: AME 0.11, ALE 0.09, PME 0.08, PLE 0.09, AME-AME 0.11, AME-ALE 0.03, PME-PME 0.09, PME-PLE 0.09. Clypeus height about 2.82 times AME diameter, brown. Chelicerae: pale yellow, with dark spots; fangs long and slender. Endites: 0.28 long, 0.11 wide; brown, with large yellow spots. Labium fused with sternum, 0.06 long, 0.18 wide, without seta, brown. Leg measurements: I 2.31 (0.75, 0.25, 0.50, 0.50, 0.31); II 2.34 (0.75, 0.25, 0.54, 0.50, 0.30); III 2.63 (0.75, 0.48, 0.50, 0.56, 0.34); IV 2.70 (0.75, 0.25, 0.69, 0.63, 0.38). Leg I brown, femur with pale yellow ring; femur, patella, tibia and metatarsus without spine. Legs II–IV similar to leg I, femur II–IV without ring. Pedipalpus ( Figs 36A–B , 37A–C , 39A–D ): tibia grey, with 2 trichobothria; cymbium pale

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

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

yellow, most covered by dark spots; paracymbium hooded; subtegulum large; tegulum large, covering most of embolar base; median apophysis smooth, without protrusion; embolus long; conductor long, slender, with curled up, enveloping embolus, with toothed edge.

Female (measurements of paratype). Total length 3.00. Prosoma 1.00 long, 0.85 wide, high, columned, brown, with black stripes. Sternum 1.25 long, 1.25 wide, brown. Opisthosoma 2.00 long, 1.50 wide, brown, with white spots, many dents. Legs brown, similar to male, femur I–IV with pale yellow ring. Epigynum ( Figs 36C–D , 38A–B ): epigynum flat; one large pair, one small pair of spermathecae; copulatory ducts with tiny protuberances, short, outgrow from small

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

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

© Zoological Systematics, 39 (1): 1–135 spermathecae, opening to anterior margin of atrium; fertilization ducts short, originating from large pair spermathecae.

Distribution. Only known from type locality (Yunnan).

Figures

Fig. 36. Emertonella serrulata sp. nov., holotype male and paratype female. A. Pedipalpus, prolateral view; B. Pedipalpus, retrolateral view; C. Epigynum (vulva), ventral view; D. Epigynum (vulva), dorsal view. Scale bars = 0.10mm.

Fig. 37. Emertonella serrulata sp. nov., holotype male. A. Pedipalpus, ventral view; B. Embolus, ventral view; C. Conductor, ventral view. Scale bars = 0.10 mm.

Fig. 38. Emertonella serrulata sp. nov., holotype male and paratype female. A. Epigynum (vulva), ventral view; B. Epigynum (vulva), dorsal view; C. Male habitus, dorsal view; D. Male habitus, lateral view; E. Female habitus, dorsal view. Scale bars: A–B = 0.10mm, C–E = 1.00mm.

Fig. 39. Emertonella serrulata 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.