Brommella chongzuoensis Li, 2017

Li, Shuqiang & Wang, Xiaoxiao, 2017, New cave-dwelling spiders of the family Dictynidae (Arachnida: Araneae) from Guangxi and Guizhou, China, Zoological Systematics 42 (2), pp. 125-228 : 135

publication ID	https://doi.org/ 10.11865/zs.201711
publication LSID	lsid:zoobank.org:pub:AB92E114-07FF-41A5-AF24-DF04F8232CA5
persistent identifier	https://treatment.plazi.org/id/039E87CA-9762-FFB3-FF73-7EEF6B72FCE1
treatment provided by	Diego
scientific name	Brommella chongzuoensis Li
status	sp. nov.

Treatment

Brommella chongzuoensis Li View in CoL , sp. nov. ( Figs 9–10 View Figure 9 View Figure 10 , 97 View Figure 97 )

Type material. Holotype. Female, China, Guangxi, Chongzuo City , Fusui County, Changping Town , Hengfeng Village , cave without name, 22º42.887'N, 107º50.206'E, elev. 99m, 12 July 2011, X. Wang leg., deposited in IZCAS. GoogleMaps

Etymology. The specific name refers to the type locality; adjective.

Diagnosis. Females of this new species are similar to B. dolabrata Li , sp. nov. ( Figs 13 View Figure 13 , 15A–D View Figure 15 ), but can be distinguished by the quadrate BO (oval in B. dolabrata Li , sp. nov.), and the two coils of copulatory duct of equal thickness (slender copulatory duct coiled around a section of much thicker copulatory duct in B. dolabrata Li , sp. nov.).

Description. Female (holotype). Total length 2.65 ( Figs 10C–D View Figure 10 ). Prosoma length 1.25, width 0.95. Cephalic region width 0.53. Carapace pyriform, dorsal shield of prosoma yellow-brown, with relatively flat cephalic area, prosoma margin with several dark spots. Fovea reduced. Cervical groove indistinct. Eight eyes, all eyes white, encircled with black. Eye sizes and interdistances: AME 0.02, ALE 0.09, PLE 0.09, PME 0.07; AME-AME 0.02, AME-ALE 0.01, ALE-PLE 0.03, PLE- PME 0.04, PME-PME 0.08, ALE-ALE 0.09. Eye region length 0.12, width 0.35. Clypeus height 0.11. Chelicerae length 0.45, width 0.24, with distinct lateral condyles, 3 promarginal and 4 retromarginal teeth. Chelicerae, labium and gnathocoxae light brown, sternum yellow. Labium length 0.15, width 0.24. Gnathocoxae length 0.38, width 0.24. Sternum length 0.71, width 0.63. Legs yellow. Leg formula I-IV-II-III. Leg measurements: I 5.40 (1.55, 0.45, 1.45, 1.25, 0.70); II 4.20 (1.25, 0.40, 1.00, 0.95, 0.60); III 3.60 (1.05, 0.40, 0.75, 0.85, 0.55); IV 4.75 (1.40, 0.40, 1.15, 1.15, 0.65). Ratio Cl/Met IV = 0.33, with 14 setae. Opisthosoma length 1.70, width 1.25. Opisthosoma pale, with several black spots. Cribellum narrow, undivided.

Epigynum ( Figs 9 View Figure 9 , 10A–B View Figure 10 ). Width 0.53. BO large, nearly squared, their sclerotized rims convex relative to centre of epigynum, upper margin heavily sclerotized. Copulatory ducts slender, loosely doubled coiling as spring. Spermathecae large, ovate. Fertilization ducts long, medially attached at base of spermathecae.

Male. Unknown.

Distribution. Known only from the type locality ( Fig. 97 View Figure 97 ).