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 Brommella baiseensis Li , sp. nov. ( Figs 2–6 , 97 ) Type material. Holotype . Male , China , Guangxi , Baise City , Pingguo County , Jiucheng Town , Xingning Village , Bafengshan Mountain , Guandimiao Cave , 23º34.022'N , 107º40.763'E , elev. 287 m , 17 October 2010 , X. Wang & L. Lin leg., deposited in IZCAS . Paratypes . 3 males , 9 females , same data as holotype, deposited in IZCAS . Figure 1. Copulatory organ characters and terminology. A–B. Brommella linyuchengi Li , sp. nov. C. Lathys inaffecta Li , sp. nov. D–E. Brommella chongzuoensis Li , sp. nov. F–G. Brommella sejuncta Li , sp. nov. A. Left pedipalpus, ventral view. B–C. Left pedipalpus, retrolateral view. D, F. Epigynum, ventral view. E, G. Vulva, dorsal view. Etymology. The specific name is derived from the type locality; adjective. Diagnosis. This new species is similar to B. josephkohi Li , sp. nov. ( Figs 21–25 ), but can be distinguished by the deep notch on the prolateral surface of subtegulum (smooth in B. josephkohi Li , sp. nov. ), the presence of a branched apophysis towards base of TA (with a simple bump in B. josephkohi Li , sp. nov. ), TA prolaterally slightly sclerotized (strongly sclerotized and slightly triangular in B. josephkohi Li , sp. nov. ), the straight, not hooked tibial spur (hooked in B. josephkohi Li , sp. nov. ), and BO exposed (BO covered in B. josephkohi Li , sp. nov. ). Description. Male ( holotype ). Total body length 2.65 ( Fig. 6E ). Prosoma length 1.20, width 1.00. Cephalic region width 0.50. Carapace pyriform, cephalic part flat, pale, covered with several setae. Thoracic part pale, fovea reduced, prosoma margin in posterior part with black margin. Six eyes, AME absent, all eyes silver, encircled with black. Eye sizes and interdistances: ALE 0.08, PLE 0.09, PME 0.06; ALE–PLE 0.01, PLE–PME 0.05, PME–PME 0.06, ALE–ALE 0.08. Eye region length 0.17, width 0.35. Clypeus height 0.18. Chelicerae length 0.55, width 0.23. Chelicerae with distinct lateral condyles, 3 promarginal and 5 retromarginal teeth. Chelicerae, labium and gnathocoxae light brown; sternum yellow. Labium length 0.15, width 0.20. Gnathocoxae length 0.35, width 0.25. Sternum length 0.70, width 0.68. Leg formula I-IV- II-III. Leg measurements: I 6.10 (1.75, 0.40, 1.65, 1.45, 0.85); II 4.60 (1.35, 0.40, 1.15, 1.05, 0.65); III 4.40 (1.20, 0.40, 0.90, 1.15, 0.75); IV 5.50 (1.55, 0.40, 1.35, 1.45, 0.75). Opisthosoma length 1.30, width 1.05. Opisthosoma pale, without any distinct pattern. Cribellum narrow, undivided. Figure 2. Brommella baiseensis Li , sp. nov. , holotype, male. A. Left pedipalpus, prolateral view. B. Left pedipalpus, retrolateral view. Scale bar = 0.2mm. Figure 3. Brommella baiseensis Li , sp. nov. , holotype, male. A. Left pedipalpus, ventral view. B. Palp bulb, ventral view. Scale bars = 0.1 mm. Pedipalpus ( Figs 2–3 , 5 ). Cymbium 0.77 long. Apex of cymbium narrowed distally, ratio of cymbium length/width = 2.54. Surface of subtegulum wrinkled, black gray, prolaterally with a deep notch. Embolus filiform, originating at approximately 8:30 from tegulum. TA very strongly, spiraled, TA prolaterally broad, with slightly sclerotized edge. Base of tibia with a papillary spur, with several setae on it. Female (one of the paratypes ). Total body length 2.70 ( Figs 6C–D ). Prosoma length 1.40; width 0.85. Cephalic region width 0.50. Cephalic part slightly elevated. Eye diameters: ALE 0.08, PLE 0.09, PME 0.07. Eye region length 0.16, width 0.34. Eye interdistances: ALE–PLE 0.01, PLE–PME 0.04, PME–PME 0.07, ALE–ALE 0.09. Clypeus height 0.12. Chelicerae length 0.48, width 0.24. Chelicerae with distinct lateral condyles, 3 promarginal and 5 retromarginal teeth. Labium length 0.14, width 0.24. Gnathocoxae length 0.34, width 0.20. Sternum length 0.70, width 0.64. Leg formula I-IV- II-III. Leg measurements: I 5.50 (1.60, 0.45, 1.45, 1.30, 0.70); II 4.25 (1.30, 0.40, 0.95, 1.00, 0.60); III 3.85 (1.15, 0.35, 0.85, 0.95, 0.55); IV 4.78 (1.40, 0.40, 1.13, 1.20, 0.65). Ratio Cl/Met IV = 0.14, with 11 setae. Opisthosoma length 1.35, width 0.95. Figure 4. Brommella baiseensis Li , sp. nov. , paratype, female. A. Vulva, dorsal view. B. Epigynum, ventral view. Scale bars =0.05 mm. Figure 5. Brommella baiseensis 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 6. Brommella baiseensis 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= 0.05 mm; C–E =0.5 mm. Epigynum ( Figs 4 , 6A–B ) 0.32 wide. BO round, relatively large. Copulatory ducts coiled in circular windings (ventral view). Bursae slightly enlarged, not fused. Copulatory ducts extremely long and exceedingly convoluted ( Fig. 4A ). Spermathecae small, transversely swollen. Variation. Total body length: males 2.65–3.00 ( n = 4), females 2.30–2.80 ( n = 9). Distribution. Known only from the type locality ( Fig. 97 ).