Cicurina avicularia 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 : 190-195

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-9729-FFFF-FF73-7FBC6B72F895
treatment provided by	Diego
scientific name	Cicurina avicularia Li
status	sp. nov.

Treatment

Cicurina avicularia Li View in CoL , sp. nov. ( Figs 62–66 View Figure 62 View Figure 63 View Figure 64 View Figure 65 View Figure 66 , 97 View Figure 97 )

Type material. Holotype. Male, China, Guizhou, Bijie City , Hezhang County, Yemachuan Town , Nanchong Village , cave without name, 27º08.080'N, 104º48.883'E, elev. 1486 m, 15 November 2011, Z. Zha & Z. Chen leg., deposited in IZCAS GoogleMaps . Paratype. 1 female, same data as holotype, deposited in IZCAS GoogleMaps .

Etymology. The specific name is derived from the Latin word “ avicularius ”, meaning “of birds”, and refers to the shape of TA; adjective.

Diagnosis. Male of this new species closely resembles those of C. kailiensis Li , sp. nov. ( Figs 73–74 View Figure 73 View Figure 74 , 76 View Figure 76 ), but can be distinguished by the prolateral margin of TA with a tongue- shaped apophysis (lacking apophysis in C. kailiensis Li , sp. nov.), embolus originated at approximately 6-o’clock position (originated at approximately 9-o’clock position in C. kailiensis Li , sp. nov.), and the apical end of RTA pointed and with 2 setae (apical end blunt and with 1 seta in C. kailiensis Li , sp. nov.). Female genitalia similar to C. dong Li , sp. nov. ( Figs 69 View Figure 69 , 71 View Figure 71 ), but can be distinguished by the posteriorly located BO (anteriorly located in C. dong Li , sp. nov.), the part of laterally extending copulatory ducts “C”-shaped coiled (straight in C. dong Li , sp. nov.).

Description. Male (holotype). Total length 2.43 ( Fig. 66E View Figure 66 ). Prosoma length 1.24, width 0.98. Cephalic region width 0.53. Prosoma ovate. Dorsal shield of prosoma yellow, with flat cephalic area, fovea reduced, cervical groove indistinct. Eight eyes, AME black, others white, all eyes encircled with black. PER procurved by half PME diameter. Eye diameters: AME 0.04, ALE 0.06, PLE 0.07, PME 0.05. Eye interdistances: AME-ALE 0.02, AME-AME 0.02, PLE-PME 0.04, PME- PME 0.06. Eye region length 0.14, width 0.33. Clypeus height 0.09. Chelicerae yellow-brown, length 0.54, width 0.24, with distinct lateral condyles, 3 (1 large, 2 small) promarginal and 6 retromarginal teeth. Labium yellow-brown, 0.15 long, 0.23 wide. Gnathocoxae yellow-brown, 0.30 long, 0.25 wide. Sternum yellow, 0.74 long, 0.69 wide. Legs yellow. Leg formula IV-I-II-III. Leg measurements: I 3.75 (1.10, 0.39, 0.94, 0.78, 0.54); II 3.47 (1.03, 0.38, 0.83, 0.75, 0.48); III 3.10 (0.92, 0.35, 0.65, 0.73, 0.45); IV 4.01 (1.08, 0.38, 0.95, 0.99, 0.61). Opisthosoma length 1.24, width 0.95. Opisthosoma yellow, with two rows of gray spots.

Pedipalpus ( Figs 62–63 View Figure 62 View Figure 63 , 65 View Figure 65 ). Cymbium length 0.55. Apex of cymbium as long as wide. Embolus originated at approximately 6-o’clock position. Embolus slender, filiform. Teminate of TA strongly sclerotized, relatively short, lateral margin with several denticles. Prolateral margin of TA with a tongue-shaped apophysis. RTA apical end pointed, simple, with a single fold and with 2 setae.

Female (paratype). Total length 2.65 ( Figs 66C–D View Figure 66 ). Prosoma length 1.35; width 0.98. Cephalic width 0.60. Prosoma pyriform. PER relatively straight. Eye diameters: AME 0.04, ALE 0.07, PLE 0.06, PME 0.05. Eye interdistances: AME- ALE 0.02, AME-AME 0.04, PLE-PME 0.07, PME-PME 0.08. Eye region length 0.13, width 0.36. Clypeus height 0.12. Chelicerae length 0.60, width 0.28, with distinct lateral condyles, 3 (1 large, 2 small) promarginal and 6 retromarginal teeth. Labium length 0.16, width 0.25. Gnathocoxae length 0.39, width 0.21. Sternum length 0.83, width 0.73. Leg formula IV-I- II-III. Leg measurements: I 3.97 (1.13, 0.50, 0.95, 0.86, 0.53); II 3.66 (1.08, 0.45, 0.80, 0.80, 0.53); III 3.44 (1.00, 0.39, 0.73, 0.78, 0.54); IV 4.38 (1.23, 0.45, 1.00, 1.07, 0.63). Opisthosoma length 1.38, width 1.10.

Epigynum ( Figs 64 View Figure 64 , 66A–B View Figure 66 ). Width 0.39. Epigynum with large atrium, posterioly located. Bursae enlarged, not fused. Copulatory ducts hardly separated at midline. Coils forming roughly an "8". The laterally extending part of copulatory ducts “C”-shaped coiled. Spermathecae bulb-shaped, widely separated. Fertilization ducts long, laterally attached at the base of spermathecae.

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