Leptonetela oktocantha Lin &amp; Li 2010, sp. nov.
Creators: name: Lin, Yucheng
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Leptonetidae
Leptonetela
Leptonetela oktocantha

description: <i>Leptonetela oktocantha</i> sp. nov. Figs 37–38, 61 <b>Type material:</b> <b>Holotype</b>: male (IZCAS), Guanyin Cave, Chengguan Town, Guanling County [25°52´N, 105°37´E, Guizhou, China], 7 May 2005, Y.C. Lin and Y.F. Tong leg.. Paratypes: 2 females, same data as holotype (IZCAS). The specific name is derived from the Greek words “ <i>okto</i> ” (= eight) and “ <i>acanthos</i> ” (= thorn), in reference to the presence of eight long spines on pedipalpal tibia. <b>Diagnosis.</b> <i>Leptonetela oktocantha</i> <b>sp. nov.</b> resembles <i>L. meitan</i> <b>sp. nov.</b>, but differs from the latter by the presence of 8 tibial spurs on pedipalp, the tibial spur IV crossed with spurs V and VI, the presence of 5 setae on pedipalpal tarsus distally (8 setae in <i>L. meitan</i> <b>sp. nov.</b>, the wider spaced spermathecae). <b>Description.</b> Holotype male. Total length 2.08 long. Prosoma 0.97 long, 0.91 wide. Sternum 0.65 long, 0.58 wide. Opisthosoma 1.15 long, 0.99 wide. Dorsal shield of prosoma pale yellow, short setae along anterolateral margin of clypeus, a pair of setae on posterior area of PLE. Thoracic median groove absent. Cervical groove and radial furrows indistinct, pale. Clypeus 0.21 high, slightly sloped anteriorly. Four reduced eyespots, white and contiguous, subequal size. Eye sizes: ALE 0.04, PLE 0.04; PLE-PLE 0.05; AER 0.07. Chelicerae shorter than endites, yellow, fang furrow with 8 promarginal and 5 retromarginal teeth. Endites yellow, labium pale yellow. Sternum and legs pale yellow. Leg measurements: I 6.44 (1.72, 0.29, 1.95, 1.50, 0.98); II 4.78 (1.33, 0.27, 1.36, 1.06, 0.76); III 3.98 (1.08, 0.27, 1.10, 0.95, 0.58); IV 5.47 (1.48, 0.28, 1.65, 1.28, 0.78). Leg formula: I-IV-II-III. Several prolateral setae on femur I mesially. One dorsal spine at patella distally. Tibiae modified by 3 dorsal trichobothria and 7 or 8 prolateral spines respectively. A row of thin hairs along tibia I and II retrolaterally. Metatarsi II and III with a finely serrated hairs-comb at ventral base respectively. Opisthosoma pale yellow, ovoid, covered with hairs, lacking pigmentation, rugose posteriorly. Pedipalpal femur spineless. One dorsal spine at patella distally. Three dorsal trichobothria and 8 retrolateral spurs modified pedipalpal tibia (spurs I–III at proximally, IV–VI crossed each other and at mesially, VII–VIII parallel and at distally). Pedipalpal tarsus crinkled mesially, retrolateral earlobe-shaped process undeveloped, with 5 modified setae, of them one plumose. Pedipalpal bulb ovoid, crinkled area broad. Embolus large, but sharp distally. Conductor broad and rugose. Median apophysis smallish, fingerlike, sclerotized slightly. Female. General features, coloration and body size similar to male, but legs shorter. Total length 2.15. Prosoma 0.93 long, 0.80 wide. Sternum 0.66 long, 0.61 wide. Opisthosoma 1.27 long, 1.05 wide. Clypeus 0.20 high. PME absolutely absent, ALE and PLE reduced into white eyespots, contiguous. Chelicerae pale yellow, fang furrow with 8 promarginal and 5 retromarginal teeth. Endites and labium yellow, sternum and legs pale yellow. Leg measurements: I 5.03(1.43, 0.25, 1.51, 1.18, 0.66); II 3.93(1.13, 0.25, 1.09, 0.87, 0.59); III 3.36(0.97, 0.24, 0.86, 0.78, 0.51); IV 4.69(1.37, 0.24, 1.40, 1.07, 0.61). Except femoral spines of leg I less than in male, the chaetotaxy and trichobothria of each leg same as in male. Opisthosoma pale, ovoid, covered with hairs, lacking pigment, slightly rugose posteriorly. Genital area covered with plumose long hairs. Internal genitalia relatively small, consisting of a pair of short spermathecae and sperm ducts, slightly sclerotized, spaced a distance. The atrium broad, protruded anteriorly and smooth posteriorly, lacking modified short hairs on atrium antromarginally, spermathecae and sperm ducts. <b>Distribution.</b> Known only from type locality.
description: Published as part of <i>Lin, Yucheng &amp; Li, Shuqiang, 2010, Leptonetid spiders from caves of the Yunnan-Guizhou Plateau, China (Araneae: Leptonetidae) 2587, pp. 1-93 in Zootaxa 2587 (1)</i> on page 57, DOI: 10.11646/zootaxa.2587.1.1, http://zenodo.org/record/5346618