Trogloneta uncata Lin & Li, 2013, new species
Creators: name: Lin, Yucheng
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Mysmenidae
Trogloneta
Trogloneta uncata

description: Trogloneta uncata new species
Figs 23–26
Type material: Holotype: male (IZCAS), Banpoyan Cave (24°56.012´N, 100°18.866´E; Altitude 1990 m), Huilong Mt., Xiaowan Town, Nanjian County, Yunnan, China, 25 June 2010, C.X. Wang, Q.Y. Zhao and L.H. Lin.
Etymology. The specific epithet is derived from the Latin adjective “uncatus” (= uncinate), in reference to the shape of the male embolus.
Diagnosis. The new species sharing the following features with other Trogloneta species: AME smaller than ALE (Figs 23 A, D); eyes at apex (Fig. 23 C); male leg I with a subdistal ventrally femoral spot and a clasping spine on metatarsus I (Figs 23 E, G); male carapace highly elevated and conical (Fig. 23 C); male pedipale large (at least as big as half carapace) (Figs 23 A–B). The new species differs from Brazilian Trogloneta spp. (Brescovit & Lopardo 2008) by the opisthosoma without one posterior tubercle and the relatively simple male pedipalp; from American T. paradoxa (see Gertsch 1960: 12, figs 12, 16) and Chinese T. denticocleari and T. speciosum (see Lin & Li 2008) by the presence of cymbial process (Figs 24 A, D; 25A, D) and the strongly hooked embolus (Figs 24 C, 25C); from European T. canariensis, the type species T. granulum and Madeira Is. T. madeirensis (see Wunderlich 1987) by the presence of median and apical cymbial apophysis (Figs 24 B–D; 25B–D) and the rugose, membranous apical lobe in pedipalpal bulb (Figs 24 B–C, 25B–C).
Description. Male: Holotype (Figs 23 A–C), total length 0.79. Prosoma 0.36 long, 0.39 wide, 0.27 high. Carapace of prosoma pale yellow, subround dorsally. Thoracic pars wrinkled marginally. Cephalic pars abruptly raised. Ocular area located at apex of carapace, covered with few setae. Eight eyes in two rows. AMEs contiguous, black. ALE, PLE and PME in triad, and white. AER and PER distinctly recurved. All eyes round, with black rings. Clypeus 0.25 high, about to 7.5 x AME diameter; ALE separated by about 4.2 x its diameter from anterolateral edge of carapace. Chelicerae pale yellow, shorter than endites (Fig. 23 D). Labium yellow, fused to sternum. Endites yellow, rhombic, longer than wide, with serrula. Sternum 0.24 long, 0.25 wide, pale yellow, heart-shaped, plump, covered with sparse setae, without any stripes. Legs formula: I-II-IV-III. Leg measurements: I 1.36 (0.43, 0.16, 0.30, 0.27, 0.20); II 1.18 (0.38, 0.14, 0.25, 0.23, 0.18); III 0.99 (0.30, 0.13, 0.20, 0.20, 0.16); IV 1.21 (0.39, 0.14, 0.27, 0.21, 0.20). Femora and patellae light grey; tibiae, metatarsi and tarsi yellow. Femur I with a ventral sclerotized spot subdistally, and femoral cuticle wrinkle, modified by tiny stripes. Metatarsus I with a submesial clasping spine prolaterally (Fig. 23 G). All patellae with a dorsal seta distally. Each tibia with a dorsal seta proximally and 3 trichobothria (Fig. 23 F). Each metatarsus with a dorsal trichobothrium proximally (Fig. 23 G). Opisthosoma 0.55 long, 0.55 wide, 0.71 high. Subround dorsally, pale yellow, with irregularly grey spots. Ventral abdomen pale. Spinnerets yellow, the anterior largest, and the posterior smallest.
Pedipalp large (Figs 24 A–D, 25A–D). Femur, patella and tibia without apophysis. Tibia semi-cupulate, with a few long setae along the distal margin (Figs 24 D, 25D). Cymbium membranous, covered with many long setae, with a dentate cymbial process prolaterally (Figs 24 A, 25A). Bulb large, irregular shape. subtegulum rugose, weakly slcerotized. Tegulum wide, rugose, spermatic duct visible through translucent tegulum. Median and apical apophyses triangular, distinctly sclerotized. Apical lobe translucent, wrinkled, and adjacent to apical apophysis (Figs 24 B, 25B). Conductor absent. Embolus large, hooked, strongly sclerotized distally, broad basally (Figs 24 A, C; 25A, C).
Female: Unknown.
Distribution. Known only from the type locality (Fig. 26).
description: Published as part of Lin, Yucheng & Li, Shuqiang, 2013, Five new minute orb-weaving spiders of the family Mysmenidae from China (Araneae), pp. 449-481 in Zootaxa 3670 (4) on pages 476-480, DOI: 10.11646/zootaxa.3670.4.3, http://zenodo.org/record/249213