Brommella tongyanfengi 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 : 170-175

publication ID	https://doi.org/ 10.11865/zs.201711
publication LSID	lsid:zoobank.org:pub:AB92E114-07FF-41A5-AF24-DF04F8232CA5
DOI	https://doi.org/10.5281/zenodo.5459567
persistent identifier	https://treatment.plazi.org/id/039E87CA-9745-FF8B-FF73-7B2E6B72FB16
treatment provided by	Diego
scientific name	Brommella tongyanfengi Li
status	sp. nov.

Treatment

Brommella tongyanfengi Li View in CoL , sp. nov. ( Figs 45–49 View Figure 45 View Figure 46 View Figure 47 View Figure 48 View Figure 49 , 97 View Figure 97 )

Type material. Holotype. Male, China, Guangxi, Laibin City , Xiangzhou County, Xiangzhou Town , cave without name, 23°57.278´N, 109°39.696´E, elev. 114 m, 10 October 2010, X. Wang & L. Lin leg., deposited in IZCAS GoogleMaps . Paratypes. 24 females, same data as holotype, deposited in IZCAS GoogleMaps .

Etymology. The specific name is a patronym in honor of Prof. Yanfeng Tong from Shenyang Normal University in Shenyang; noun in apposition. Prof. Tong is a leading taxonomist in Oonopidae in China.

Diagnosis. This new species is similar to B. punctosparsa (Song, Zhu & Chen, 1999: 363, figs 213K–N), but can be distinguished by the oar-shaped dictynid TA dorsal apophysis, ending with row of denticles (acuminate and hooked in B. punctosparsa ), medial apophysis short finger-shaped (obtuse triangle-shaped in B. punctosparsa ).

Description. Male (holotype). Total body length 2.25 ( Fig. 49E View Figure 49 ). Prosoma length 1.00, width 0.75. Cephalic region width 0.45. Cephalic part relatively flat, off-white, covered with several setae, fovea reduced, Prosoma margin dark. Six eyes, AME absent, all eyes white, encircled with black. Eye diameters: ALE 0.08, PLE 0.09, PME 0.05. Eye interdistances: ALE-PLE 0.01, PLE-PME 0.03, PME-PME 0.08, ALE-ALE 0.08. Eye region length 0.17, width 0.30. Clypeus height 0.11. Chelicerae length 0.50, width 0.20. Chelicerae with distinct lateral condyles, 3 promarginal and 5 retromarginal teeth. Labium and gnathocoxae brown, sternum light brown. Labium length 0.08, width 0.18. Gnathocoxae length 0.28, width 0.20. Sternum length 0.60, width 0.58. Leg formula I-IV-II-III. Leg measurements: I 3.95 (1.10, 0.35, 1.05, 0.85, 0.60); II 3.35 (0.95, 0.35, 0.80, 0.75, 0.50); III 2.85 (0.85, 0.30, 0.60, 0.65, 0.45); IV 3.70 (1.05, 0.35, 0.90, 0.90, 0.50). Ratio Cl/Met IV = 0.43, with 7 setae. Opisthosoma length 1.25, width 1.10. Opisthosoma beige, without distinct pattern. Cribellum narrow, undivided.

Pedipalpus ( Figs 45–46 View Figure 45 View Figure 46 , 48 View Figure 48 ). Cymbium 0.46 long. Embolus long, filiform, originating from approximately 6-o’clock position. TA prolaterally short and simple. Prolateral part of TA with a short finger-shaped apophysis, constricted medially. RTA very large, curved, with a single fold. Base of tibia with a big bifurcated spur.

Female (one of the paratypes). Total body length 2.50 ( Figs 49C–D View Figure 49 ). Prosoma length 0.93, width 0.70. Cephalic region width 0.43. Eye diameters: ALE 0.07, PLE 0.08, PME 0.06. Eye interdistances: ALE-PLE 0.02, PLE-PME 0.04, PME-PME 0.05, ALE-ALE 0.06. Eye region length 0.15, width 0.30. Clypeus height 0.08. Chelicerae length 0.38, width 0.20. Chelicerae with distinct lateral condyles, 3 promarginal and 6 retromarginal teeth. Labium length 0.11, width 0.19. Gnathocoxae length 0.29, width 0.18. Sternum length 0.58, width 0.55. Leg formula IV-I-II-III. Leg measurements: I 3.18 (0.94, 0.31, 0.81, 0.69, 0.43); II 2.75 (0.83, 0.30, 0.64, 0.58, 0.40); III 2.42 (0.73, 0.25, 0.50, 0.56, 0.38); IV 3.23 (0.95, 0.40, 0.80, 0.75, 0.43). Ratio Cl/Met IV = 0.37, with 8 setae. Opisthosoma length 1.50, width 1.10.

Epigynum ( Figs 47 View Figure 47 , 49A–B View Figure 49 ). Width 0.23. BO small and close. Bursae reduced. Copulatory ducts slender, twisted tightly ( Figs 47A View Figure 47 , 49B View Figure 49 ). Spermathecae part slightly swollen, tadpole shaped.

Variation. Total body length: females 1.8–2.5 (n = 24).

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