New cave-dwelling spiders of the family Dictynidae (Arachnida: Araneae) from Guangxi and Guizhou, China
Author
Li, Shuqiang
Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar; E-mail: lisq @ ioz. ac. cn & Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China & University of the Chinese Academy of Sciences, Beijing 100049, China
Author
Wang, Xiaoxiao
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
text
Zoological Systematics
2017
42
2
125
228
journal article
10.11865/zs.201711
2095-6827
5366040
AB92E114-07FF-41A5-AF24-DF04F8232CA5
Cicurina parallela
Li
,
sp. nov.
(
Figs 81–82
,
97
)
Figure 81.
Cicurina parallela
Li
,
sp. nov.
, holotype female. A. Vulva, dorsal view. B. Epigynum, ventral view. Scale bars =0.05 mm.
Figure 82.
Cicurina parallela
Li
,
sp. nov.
, holotype, female. A. Epigynum, ventral view. B. Vulva, dorsal view. C. Habitus, dorsal view. D. Habitus, ventral view. Scale bars: A–B= 0.1 mm; C–D = 0.5 mm.
Type material.
Holotype
.
Female
,
China
,
Guizhou
,
Guiyang City
,
Nanming District
,
Mutou Village
,
Jianlong Cave
,
26°32.766´N
,
106°46.892´E
, elev.
1103 m
,
19 April 2007
,
Y. Lin
&
J. Liu
leg., deposited in
IZCAS
.
Etymology. The specific name is derived from the Latin word “
parallelus
”, meaning “parallel”, and refers to the ventral view of the female copulatory ducts; adjective.
Diagnosis. Females of this species are most similar to
C. dong
Li
,
sp. nov.
(
Figs 70
,
72A–B
), but can be distinguished by the posteriorly located atrium (anteriorly situated in
C. dong
Li
,
sp. nov.
), and the end of copulatory ducts not extending laterally (extending laterally in
C. dong
Li
,
sp. nov.
).
Description. Female (
holotype
). Total body length 2.25 (
Figs 82C–D
). Prosoma length 1.05, width 0.90. Cephalic region width 0.55. Cephalic part relatively flat, brown, covered with several setae. Thoracic part dark brown, fovea reduced. Eight eyes, AME black, others white. All eyes encircled with black. PER straight. Eye diameters: AME 0.04, ALE 0.07, PLE 0.07, PME 0.07. Eye region length 0.16, width 0.37. Eye interdistances: AME-AME 0.03, AME-ALE 0.03, ALE-PLE 0.02, PLE- PME 0.05, PME-PME 0.07. Clypeus height 0.08. Chelicerae length 0.43, width 0.28. Chelicerae with distinct lateral condyles, 3 promarginal and 8 retromarginal teeth. Labium length 0.13, width 0.21. Gnathocoxae length 0.31, width 0.20. Sternum length 0.69, width 0.63. Legs brown. Leg formula IV-I-II-III. Leg measurements: I 3.41 (1.00, 0.43, 0.85, 0.68, 0.45); II 3.08 (0.90, 0.40, 0.70, 0.65, 0.43); III 2.94 (0.88, 0.40, 0.58, 0.63, 0.45); IV 3.60 (1.00, 0.40, 0.85, 0.85, 0.50). Opisthosoma length 1.43, width 1.13. Opisthosoma white, with black anchor shaped pattern. Venter without distinct pattern. Spinnerets yellow-brown. No cribellum and no calamistrum.
Figure 83.
Cicurina wusanani
Li
,
sp. nov.
, holotype, male. A. Left pedipalpus, prolateral view. B. Left pedipalpus, retrolateral view. Scale bar= 0.1 mm.
Epigynum (
Figs 81
,
82A–B
). Width 0.38. Atrium posteriorly located on epigynal plate. Copulatory ducts inverted “
V
” in ventral view, parallel. Bursae enlarged, slightly fused at base. Copulatory ducts slender, internally joining base of spermathecae. Spermathecae spherical, widely separated. Fertilization duct long, medially attached at base of spermathecae.
Male. Unknown.
Distribution. Known only from the
type
locality (
Fig. 97
).