Jacaena tengchongensis, Zhao & Peng, 2013

Zhao & Peng, 2013, Three new species of spiders of the family Liocranidae (Arachnida: Araneae) from China, Oriental Insects 47 (2), pp. 176-183: 177-178

publication ID

http://doi.org/ 10.1080/00305316.2013.811021

persistent identifier

http://treatment.plazi.org/id/7D5A8785-6B77-FFAA-FF23-FD1A7728FAA8

treatment provided by

Jeremy

scientific name

Jacaena tengchongensis
status

sp. nov.

1. Jacaena tengchongensis  sp. nov. ( Figures 1View Figure 1. J, 4View Figure 4)

Description

Female carapace dark brown without pattern or hair, the entire surface covered with fine tubercles, become wider between palpal coxae and widest between the posterior margin of coxa II, and its posterior margin truncated. Anterior eye row slightly recurved, posterior eye row almost straight and slightly wider. Fovea longitudinal and indistinct. Sternum reddish brown and without pattern. Chelicerae 1.0 5 long, coloured as sternum, with lateral condyle, three promarginal and two retromarginal teeth. Labium slightly wider than long. Legs brown, paler than carapace. Tibiae I – II with seven and six pairs of long, ventral spines, respectively, with longest spine 0.94 long. Metatarsi I and II with four pairs of long, ventral spines, with longest spine 0.86 long. Opisthosoma elongate oval, with black hair. Dorsum yellowish brown with two pairs of muscular impression, a pair of small circular, white patterns on anterior one-third, one transverse arc shaped, white pattern on posterior one-fourth, its posterior end with a short, conical, white apophysis and without any dorsal scutum ( Figure 1View Figure 1. J (a)). Venter coloured as dorsum, median area with an anchor-shaped, white pattern. Spinnerets white, distal portion pale brown, anterior and posterior spinnerets cylindrical, median one foliiform.

Female genital with epigynal plate trapezoidal, wider anteriorly; atrium longitudinal and anterior ( Figures 1View Figure 1. J (b), 4 (a)). Vulva with copulatory duct twisted, with two coils, with the portion connected to the fertilisation duct almost straight; and spermathecae tube shaped ( Figures 1View Figure 1. J (c), 4 (b)).

Measurements. Total length 7.70. Carapace 2.95 long, 2.37 wide. Clypeus height 0.20. Opisthosoma 4.2 long, 2.48 wide. Eye size and interdistance: AME 0.11, ALE 0.14, PME 0.10, PLE 0.13, AME – AME 0.07, AME – ALE 0.05, AME – PME 0.11, PME – PME 0.14, PME – PLE 0.14, ALE – PLE 0.09. Leg I 8.62 (2.47, 3.20, 1.95, 1.00), II 7.87 (2.25, 2.92, 1.70, 1.00), III 6.62 (1.75, 2.32, 1.65, 0.90), IV 9.66 (2.60, 3.14, 2.67, 1.25), formula: IV, I, II, III.

Holotype

f, China: Yunnan Province, Tengchong County, Xinhua Township, Longjing Village , 25.80564 ° N, 98.50863 ° E, 1940m, 5.vi.2006, Coll. Chang-min Yin, Jia-fang Hu, Ming-wei Yang, Shao-xian He, YHY29– 1 ( HNU)GoogleMaps  .

Etymology

The specific name is derived from the type locality.

Comments

This new species resembles J. mihun  ( Deeleman-Reinhold 2001: Figures 794 – 795), but distinct in its (1) copulatory duct much shorter, twisted and simple ( Figures 1View Figure 1. J (c), 4 (b)) and (2) the portion connected to the fertilisation duct of the copulatory duct almost straight (coiled in J. mihun  ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Liocranidae

Genus

Jacaena