Clubiona biforamina , Liu, Ping, Peng, Xianjin & Yan, Hengmei, 2016

Liu, Ping, Peng, Xianjin & Yan, Hengmei, 2016, Five new species of the Clubiona corticalis species group (Araneae, Clubionidae) from China, Zootaxa 4184 (3), pp. 561-575: 562

publication ID

http://doi.org/10.11646/zootaxa.4184.3.10

publication LSID

lsid:zoobank.org:pub:CED5BD3B-B40A-4CF1-9746-76B408D82BE7

persistent identifier

http://treatment.plazi.org/id/860F87A5-0127-DD46-3881-C9E8FCBBF80D

treatment provided by

Plazi

scientific name

Clubiona biforamina
status

new species

Clubiona biforamina  new species

Figs 1–12View FIGURES 1 – 7View FIGURES 8 – 12

Type material. Holotype: Ƌ from Nankang (24°49'00"N, 98°46'60"E, 2100 m), Tengchong County, Yunnan Province, China, 4–7 November 1998, C. Griswold, D.H. Kavanaugh, C.L. Long leg.. ParatypesGoogleMaps  : CHINA. Yunnan Province: 1 ♀, same data as holotype; 2 Ƌ, Tengchong County, Henghe Village , 60th km of Bawan –Tengchong road (25°00'30"N, 98°25'15"E, 1594 m), 19 October 2003, G. Tang leg.GoogleMaps  ; 1 ♀, Fugong County, Lumadeng Township , 0.4 km SSE Shibali guesthouse (27°09'48"N, 98°46'55"E, 2475 m), 5 May 2004, C. Griswold, D.H. Kavanaugh leg..GoogleMaps 

Etymology. The specific name is the combination of the prefix “ bi -” (double) and the Latin “ foramen ” (hole), referring to the two small, circular copulatory openings in the female epigyne; adjective.

Diagnosis. Males and females of Clubiona biforamina  n. sp. resemble those of C. linzhiensis Hu, 2001  described from Xizang, China (see Yu et al., 2012, figs 17–39), but differ by the tibia with a membranous lamella covering the retrolateral tibial apophysis in retrolateral view ( Figs 5View FIGURES 1 – 7, 10View FIGURES 8 – 12); tegular apophysis absent ( Figs 4View FIGURES 1 – 7, 9View FIGURES 8 – 12); apex of conductor placed below the apex of embolus; conductor and embolus apexes well separated in prolateral view ( Figs 3View FIGURES 1 – 7, 8View FIGURES 8 – 12); atrium hump-shaped, longitudinal; copulatory openings circular, located on the middle of atrium ( Figs 6View FIGURES 1 – 7, 11View FIGURES 8 – 12); spermathecae transversally U-shaped, located over the bursae ( Figs 7View FIGURES 1 – 7, 12View FIGURES 8 – 12); dorsum of abdomen without color markings ( Figs 1, 2View FIGURES 1 – 7).

Description. Male (holotype). Total length 5.20; carapace 2.50 long, 1.70 wide; abdomen 2.70 long, 1.40 wide. Cephalothorax ( Fig. 1View FIGURES 1 – 7). Carapace brownish yellow; chelicerae brownish yellow, promargin with five teeth, fourth largest, retromargin with six subequal teeth; endites and labium brownish yellow; sternum brownish yellow, with few long hairs. Eyes. In dorsal view, anterior eye row slightly recurved, posterior eye row almost straight; AME dark, other eyes light, surrounded by black pigment; eye diameters and interdistances: AME 0.08, ALE 0.15, PLE 0.10, PME 0.15, AME –AME 0.10, AME –ALE 0.05, PME –PME 0.23, PME –PLE 0.13; MOQL 0.28, MOQA 0.28, MOQP 0.43. Legs light yellow; tibiae I and II with six ventral spines, metatarsi I and II with one pair of ventral spines; leg measurements: I 7.04 (1.88, 3.0, 1.38, 0.78), II 9.41 (2.45, 3.90, 2.08, 0.98), III 6.64 (1.83, 2.50, 1.68, 0.63), IV 8.93 (2.40, 3.10, 2.55, 0.88); leg formula: II, IV, I, III. Abdomen ( Fig. 1View FIGURES 1 – 7). Dorsum light yellow, with two pairs of muscular depressions; venter light yellow; spinnerets light yellow. Palp ( Figs 3–5View FIGURES 1 – 7, 8–10View FIGURES 8 – 12). Femur and patella unmodified, without apophyses; ventral tibial apophysis conical, with blunt apex, retrolateral tibial apophysis flat, triangular, covered by a tibial membranous lamella; cymbium longer than bulb; bulb elongate-oval, sperm duct thick and U-shaped in ventral view; conductor with wider base and sharply pointed apex; embolus slender, with cuspidal apex.

Female (paratype). Total length 6.90; carapace 2.60 long, 1.95 wide; abdomen 4.20 long, 2.75 wide. Cephalothorax ( Fig. 2View FIGURES 1 – 7). General color darker than that of male; chelicerae promargin with five teeth, fourth largest, retromargin with five subequal teeth. Eye diameters and interdistances: AME 0.10, ALE 0.15, PLE 0.10, PME 0.13, AME –AME 0.08, AME –ALE 0.05, PME –PME 0.28, PME –PLE 0.18; MOQL 0.35, MOQA 0.30, MOQP 0.40. Leg measurements: I 5.41 (1.50, 2.18, 1.10, 0.63), II 6.15 (1.70, 2.50, 1.25, 0.70), III 5.38 (1.58, 1.90, 1.35, 0.55), IV 7.56 (2.18, 2.65, 2.10, 0.63); leg formula: IV, II, I, III. Epigyne ( Figs 6–7View FIGURES 1 – 7, 11–12View FIGURES 8 – 12). Atrium hump-shaped, located at anterior part of epigynal plate; two small, circular copulatory openings, located in the middle of atrium; copulatory ducts indistinct; spermathecae with ovoid heads and tubular, transversally U-shaped bases; bursae ovoid, translucent.

Distribution. Presently known only from Yunnan, China.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Clubionidae

Genus

Clubiona