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 dong Li , sp. nov. ( Figs 69–72 , 97 ) Type material. Holotype . Male , China , Guizhou , Bijie City , Zhijin County , Chengguan Town , Yangliu Village , Long Cave , 26°40.975´N , 105°47.085´E , elev. 1323 m , 24 April 2007 , Y. Lin & J. Liu leg., deposited in IZCAS . Paratypes . 2 males , 30 females , same data as holotype, deposited in IZCAS . Etymology. The specific name is from the Chinese word for cave, in reference to the habitat of this species; noun. Diagnosis. The male pedipalpus of this species closely resembles that of C. medina Gertsch, 1992 (Paquin & Dupérré, 2009: 31, figs 56–57), but can be distinguished by the presence of a finger-shaped apophysis at retrolateral margin of TA (absent in C. medina ). Females of this species are most similar to those of C. avicularia Li , sp. nov. ( Figs 64 , 66A–D ), but can be distinguished by the anteriorly situated BO (posteriorly situated in C. avicularia Li , sp. nov. ), and the end of copulatory ducts pointing laterally (posteriorly pointing in C. avicularia Li , sp. nov. ). Description. Male ( holotype ). Total body length 2.75 ( Fig. 72E ). Prosoma length 1.40, width 1.26. Cephalic region width 0.65. Cephalic part relatively flat, light brown, covered with several setae. Thoracic part light brown, fovea reduced. Eight eyes, PER relatively straight as seen in dorsal view, AME smallest, black, others white. All eyes encircled with black. Eye diameters: AME 0.05, ALE 0.09, PLE 0.09, PME 0.07. Eye region length 0.18, width 0.40. Eye interdistances: AME- AME 0.02, AME-ALE 0.03, ALE-PLE 0.02, PLE-PME 0.05, PME-PME 0.10, AME-PME 0.06. Clypeus height 0.12. Chelicerae length 0.60, width 0.28. Chelicerae with distinct lateral condyles, 3 promarginal and 7 retromarginal teeth. Labium and gnathocoxae brown, sternum light brown. Labium length 0.18, width 0.26. Gnathocoxae length 0.36, width Sternum length 0.83, width 0.83. Legs light brown. Leg formula IV-I-II-III. Leg measurements: I 4.58 (1.30, 0.55, 1.10, 0.98, 0.65); II 4.40 (1.30, 0.50, 1.00, 0.95, 0.65); III 4.08 (1.10, 0.50, 0.90, 0.98, 0.60); IV 4.90 (1.30, 0.50, 1.20, 1.25, 0.65). Opisthosoma length 1.50, width 1.05. Opisthosoma pale-yellow, with green-black pattern, venter without distinct pattern. Spinnerets yellow-brown. No cribellum and no calamistrum. Figure 67. Cicurina damaoensis Li , sp. nov. , holotype, female. A. Vulva, dorsal view. B. Epigynum, ventral view. Scale bars = 0.05 mm. Pedipalpus ( Figs 69 , 71 ). Cymbium length 0.67. Apex of cymbium as long as wide. Embolus slender, filiform, originated at approximately 8-o’clock position. TA prolaterally, long, slim, and pointed, recurving towards base of TA , venter with row of diaphragms. Lateral of TA with a finger-shaped, coarse apophysis. TA retrolateral with two pointed fold, and with 2 setae. Spur small, slightly triangular. Figure 68. Cicurina damaoensis 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 =0.05 mm; C–D =0.5 mm. Figure 69. Cicurina dong Li , sp. nov. , holotype, male. A. Left pedipalpus, prolateral view. B. Left pedipalpus, ventral view. C. Left pedipalpus, retrolateral view. D. Palp bulb, ventral view. E. Terminate of TA, ventral view. Scale bars= 0.1 mm. Figure 70. Cicurina dong Li , sp. nov. , paratype, female. A. Vulva, dorsal view. B. Epigynum, ventral view. Scale bars =0.1 mm. Female (one of the paratypes ). Total body length 2.96 ( Figs 72C–D ). Prosoma length 1.32, width 0.94. Cephalic region width 0.76. PER relatively straight. Eye diameters: AME 0.04, ALE 0.10, PLE 0.09, PME 0.08. Eye region length 0.20, width 0.45. Eye interdistances: AME-AME 0.01, AME-ALE 0.04, ALE-PLE 0.03, PLE-PME 0.05, PME-PME 0.10, AME- PME 0.05. Clypeus height 0.13. Chelicerae length 0.58, width 0.34. Chelicerae with distinct lateral condyles, 3 promarginal and 7 retromarginal teeth. Labium length 0.18, width 0.20. Gnathocoxae length 0.44, width 0.28. Sternum length 0.90, width 0.75. Leg formula IV-I-II-III. Leg measurements: I 4.12 (1.24, 0.52, 1.00, 0.84, 0.52); II 3.84 (1.16, 0.48, 0.88, 0.84, 0.48); III 3.44 (0.96, 0.44, 0.72, 0.84, 0.48); IV 4.52 (1.32, 0.48, 1.08, 1.08, 0.56). Opisthosoma length 1.52, width 1.12. Opisthosoma white, with black anchor-shaped pattern. Epigynum ( Figs 70 , 72A–B ). Width 0.42. BO wide, anteriorly located. Bursae enlarged, not fused. Copulatory ducts hardly separated at midline. Reaching top of spermathecae apex, copulatory ducts curled as rectangular. End of copulatory. ducts pointing laterally. Spermathecae pear-shaped. Fertilization duct laterally attached at base of spermathecae. Figure 71. Cicurina dong Li , sp. nov. , holotype, male. A. Palp bulb, ventral view. B. Left pedipalpus, ventral view. C. Left pedipalpus, prolateral view. D. Left pedipalpus, retrolateral view. Scale bars =0.1 mm. Figure 72. Cicurina dong Li , sp. nov. A–D. Paratype, female. E. Holotype, male, habitus, dorsal view. A. Epigynum, ventral view. B. Vulva, dorsal view. C. Habitus, dorsal view. D. Habitus, ventral view. Scale bars: A–B =0.1 mm; C–E = 0.5mm. Variation. Total body length: males 2.75–3.15 ( n = 3), females 2.51–3.50 ( n = 30). Distribution. Known only from the type locality ( Fig. 97 ).