Clubiona falciforma Liu, Peng & Yan, 2016, new species
Creators: name: Liu, Ping
name: Peng, Xianjin
name: Yan, Hengmei
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Clubionidae
Clubiona
Clubiona falciforma

description: Clubiona falciforma new species
Figs 25–36
Type material. Holotype: Ƌ from Shanqing (25°48'24"N, 98°31'45"E, 1880 m), Longjing Village, Xinhau Township, Tengchong County, Yunnan Province, China, 27 May 2006, C.M. Yin, J.F. Hu, S.X. He, Y.Y. Wang leg.. Paratypes: CHINA. Yunnan Province: 2 Ƌ, 5 ♀, same data as holotype; 1 ♀, Tengchong County, Mingguang Township, Zizhi Village (25°46'58"N, 98°36'59"E, 2200 m), 21 May 2006, M. Yang leg.; 2 Ƌ, Tengchong County, Xinhua Township, Longjing Village (25°48'20"N, 98°30'31"E, 1940 m), 5 June 2006, C.M. Yin, J.F. Hu, M.W. Yang, S.X. He leg.; 3 Ƌ, 5 ♀, Tengchong County, Puchuan Township, Miguo Village (24°45'40"N, 98°32'14"E, 1920 m), 5 June 2006, C.M. Yin, J.F. Hu, M.W. Yang, S.X. He leg.; 2 Ƌ, 3 ♀, Tengchong County, Jietou Township, Shaba Village (25°23'33"N, 98°42'12"E, 1850 m), 25 May 2006, X.P. Wang, P. Hu leg..
Etymology. The specific name is the combination of the Latin “ falx ” (sickle) and “ formis ” (form), referring to the falcate conductor; adjective.
Diagnosis. Males and females of Clubiona falciform a n. sp. resemble those of C. allotorta Dankitapexakul & Singtripop, 2008 described from northern Thailand (see Dankittipakul & Singtripop, 2008, figs 24–36), but differ by the digitiform ventral tibial apophysis (Figs 28, 33); embolus inverted L-shaped, with apex folding transversely in ventral view (Figs 28, 33); apex of conductor extending to the base of embolus in ventral view (Figs 28, 33); conductor widest at the middle, its base almost as wide as its apex in retrolateral view (Figs 29, 34); atrium elliptic, without hood, two times as wide as long (Figs 30, 35); copulatory ducts almost straight and bursae ovoid, longitudinal (Figs 31, 36).
Description. Male (holotype): Total length undetermined; carapace 1.90 long, 1.40 wide; abdomen dried. Cephalothorax (Fig. 25). Carapace brownish yellow; chelicerae brownish yellow, promargin with six teeth, fifth largest, retromargin with five subequal teeth; endites and labium brownish yellow; sternum yellow. 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 0.10, PLE 0.11, PME 0.11, AME–AME 0.05, AME–ALE 0.03, PME–PME 0.18, PME–PLE 0.08; MOQL 0.28, MOQA 0.20, MOQP 0.35. Legs yellow; tibiae I and II with three pairs of ventral spines, metatarsi I and II with one pair of ventral spines; leg measurements: I 4.33 (1.25, 1.75, 0.85, 0.48), II 4.56 (1.40, 1.75, 0.93, 0.48), III 4.06 (1.25, 1.43, 1.0, 0.38), IV 5.85 (1.70, 2.0, 1.65, 0.50); leg formula: IV, II, I, III. Abdomen (Fig. 25) brownish yellow. Palp (Figs 27–29, 32–34). Femur and patella unmodified, without apophyses; ventral tibial apophysis thumb-shaped, with blunt, membranous apex; retrolateral tibial apophysis flat, triangular, covered by a membranous tibial lamella; cymbium longer than bulb; bulb oval, sperm duct thin, inverted S-shaped in ventral view; conductor falcate; embolus short, wide, gradually tapering toward apex, inverted L-shaped in ventral view.
Female (paratype): Total length 3.76; carapace 1.76 long, 1.30 wide; abdomen 2.0 long, 1.25 wide. Cephalothorax lighter than that of male (Fig. 26). Eye diameters and interdistances: AME 0.05, ALE 0.08, PLE 0.10, PME 0.10, AME–AME 0.08, AME–ALE 0.05, PME–PME 0.20, PME–PLE 0.13; MOQL 0.28, MOQA 0.21, MOQP 0.40. Leg measurements: I 3.35 (0.95, 1.30, 0.75, 0.35), II 3.40 (1.0, 1.50, 0.60, 0.30), III 3.0 (0.90, 1.20, 0.60, 0.30), IV 5.0 (1.45, 1.80, 1.30, 0.45); leg formula: IV, II, I, III. Abdomen (Fig. 26). Dorsum light yellow, with one pair of muscular depressions; venter light yellow; spinnerets yellow. Epigyne (Figs 30–31, 35–36). Atrium elliptic, located at anterior portion of epigynal plate; two copulatory openings located at basolateral sides of atrial border; copulatory ducts short, extending posteriorly; spermathecae tubular, slender, transversally U-shaped; bursae ovoid, translucent.
Distribution. Presently known only from Yunnan, China.
description: Published as part of Liu, Ping, Peng, Xianjin & Yan, Hengmei, 2016, Five new species of the Clubiona corticalis species group (Araneae, Clubionidae) from China, pp. 561-575 in Zootaxa 4184 (3) on pages 567-570, DOI: 10.11646/zootaxa.4184.3.10, http://zenodo.org/record/257982