Eight new species of the spider genera Raveniola and Sinopesa from China and Vietnam (Araneae, Nemesiidae)
Author
Li, Shuqiang
Author
Zonstein, Sergei
text
ZooKeys
2015
519
1
32
http://dx.doi.org/10.3897/zookeys.519.8784
journal article
http://dx.doi.org/10.3897/zookeys.519.8784
1313-2970-519-1
3004DC4729C54C6CA061234F9410D7D3
Taxon
classification Animalia Araneae Nemesiidae
Raveniola yajiangensis
sp. n.
Figs 17, 18, 19
Type material.
Holotype ♂ - CHINA: Sichuan Province, Yajiang County, Yajiang [
27°50.119'N
,
99°42.426'E
, elevation 3285 m], 7 June 2001, X. Yu & H. Zhang (IZCAS). Paratypes: same area but Longjiangbian [
27°49.119'N
,
99°41.426'E
, elevation 3265 m], 27 May 2009, X. Yu & H. Zhang - 1♀ (IZCAS).
Etymology.
The specific epithet, a Latinised adjective, refers to the type locality.
Diagnosis.
Judging from the shape of the bulb and the distal portion of the embolus, this new species is similar to
Raveniola shangrila
(
Zonstein and Marusik 2012
, figs 33, 41) but can be distinguished by the slightly curved distal portion of the embolus (Figs 17
A-C
, 19
A-C
); conspecific females possess uniquely shaped receptacles, with the inner branches curved inward (Figs 18, 19D).
Figure 17.
Raveniola yajiangensis
sp. n., male holotype. A palp, prolateral view B palp, ventral view C palp, retrolateral view D habitus, dorsal view E leg I, ventral view F leg II, ventral view G habitus, ventral view. Scale bars: 0.5 mm (
A-C
); 2.0 mm (
D-G
).
Figure 18.
Raveniola yajiangensis
sp. n., female paratype. A vulva, dorsal view B genital area, ventral view. Scale bars: 0.25 mm.
Figure 19.
Raveniola yajiangensis
sp. n., male holotype (
A-C
) and female paratype (D). A palp, prolateral view B palp, ventral view C palp, retrolateral view D vulva, dorsal view. Scale bars: 0. 5 mm (
A-C
); 0.25mm (D).
Description.
Male (holotype): TL 14.10, CL 5.60, CW 5.45, AL 6.20, AW 3.55. Eye diameters and interdistances: AME 0.19, ALE 0.25, PME 0.16, PLE 0.14,
AME-AME
0.15,
AME-ALE
0.07,
PME-PME
0.45,
PME-PLE
0.07. Leg lengths: I: 20.96 (6.09+2.24+5.45+4.49+2.69), II: 24.23 (6.47+3.27+5.83+5.45+3.21), III: 17.76 (4.49+2.18+4.10+4.55+2.44), IV: 22.56 (5.83+2.56+4.81+6.67+2.69). Venter as shown in Fig. 17G. Prosoma, palps and legs brown. Abdomen, including spinnerets, deep grey (Fig. 17D, G). Palpal tibia long, subcylindrical; cymbium apically with five short, stout spines; bulb long and pyriform; embolus gradually tapering to a slender bent tip (Figs 17
A-C
, 19
A-C
). Small PMS present, apical segment of PLS digitiform (Fig. 17D, G).
Female (paratype): TL 16.50, CL 6.75, CW 5.80, AL 7.25, AW 5.90. Colouration and most somatic characters as in the male. Eye diameters and interdistances: AME 0.21, ALE 0.35, PME 0.17, PLE 0.23,
AME-AME
0.18,
AME-ALE
0.12,
PME-PME
0.53,
PME-PLE
0.07. Leg lengths: I: 16.05 (5.05+2.30+3.90+3.05+1.75), II: 15.15 (4.25+2.75+3.30+2.80+2.05), III: 14.45 (4.30+1.95+2.85+3.25+2.10), IV: 19.90 (5.25+2.25+4.40+5.25+2.75). Receptacles divided into a long digitiform inner branch that is bent inward and a short club-shaped outer lobe that is bent anteriad (Figs 18, 19D).
Distribution.
China: southern Sichuan.