Nasoona kinabalu Tanasevitch 2018, sp. nov.
Creators: name: Tanasevitch, Andrei V.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Nasoona
Nasoona kinabalu

description: Nasoona kinabalu sp. nov.
Figs 9, 18-19, 49-55
Holotype: Male; EAST MALAYSIA, Borneo, Sabah, Kinabalu N.P., Mt Kinabalu, below Layang-Layang, 2600 m a.s.l., interception trap; 2.-8.V.1987; leg. A. Smetana [#B20].
Paratypes: 1 male; Mt Kinabalu, below Layang-Layang, 2595 m a.s.l.; 2. V.1987; leg. A. Smetana [#B19]. – 1 male, 3 females; Mt Kinabalu, 2590 m a.s.l., humid ravine below Layan Layang, cloud forest, sifting leaf litter in humid ravine; 1. V.1987; leg. D. Burckhardt & I. Löbl [#10a]. – 1 male, 1 female; Mt Kinabalu, 3150-3200 m a.s.l., humid Myrtaceae and Ericaceae forest, sifting moss and fern near Paka cave, near river; 3. V.1987; leg. D. Burckhardt & I. Löbl [#12b].
Diagnosis: The species appears to be most similar to N. sabah sp. nov., and differs by the shorter retrolateral outgrowth of the male palpal tibia, by the shape of the paraconvector, as well as by the presence of a bipartite visor-like structure above the epigynal cavity.
Etymology: The specific epithet is a name in apposition referring to the “terra typica”, Mt Kinabalu on Borneo.
Description:
Male (paratype from Mt Kinabalu, 2590 m a.s.l.): Total length 1.90. Carapace 0.95 long, 0.75 wide, pale brown, with grey radial stripes and a narrow margin. Postocular elevation bearing bent, forwarddirected stout spines as shown in Fig. 9; eyes normal. Chelicerae 0.95 long, unmodified. Legs pale brown. Leg I 3.63 long (1.00+0.25+0.95+0.83+0.60), IV 3.66 long (1.03+0.25+0.93+0.85+0.60). Chaetotaxy: 2.2.1.1, length of spines about 1.5-2.5 diameters of leg segment. Each metatarsus with a trichobothrium. TmI 0.70. Palp (Figs 49-53): Tibia relatively short, its retrolateral branch wide, with several very short spinules terminally and with a black, rounded tubercle on its inner side. Prolateral branch well-sclerotized, dagger-shaped. Paracymbium widened distally, ending in a hook. Distal suprategular apophysis short, flat, with a shallow distally and with a black, sharp tooth in middle. Embolus long and thin, forming a loop, radix reduced. Main body of convector narrow, curved; its distal apophysis black, well sclerotized, serrate, rounded apically. Paraconvector massive, complicated, serrate; distal process distinctly protruded. Abdomen 1.00 long, 0.60 wide, dorsally white, with three longitudinal pairs of large, grey spots.
Female (paratype from Mt Kinabalu, 2590 m a.s.l.): Total length 2.52. Carapace 1.00 long, 0.85 wide, pale greyish brown, with grey radial stripes and a narrow margin; unmodified. Chelicerae 0.45 long, unmodified. Legs pale brown. Leg I 3.90 long (1.05+0.30+1.03+0.90+0.62), IV 4.11 long (1.15+0.30+1.03+1.05+0.58). Chaetotaxy: 2.2.1.1, length of spines about 1.5-2.5 diameters of leg segment. Each metatarsus with a trichobothrium. TmI 0.71. Epigyne (Figs 18-19, 54-55): Anterior wall with a bipartite visor-like outgrowth overhanging epigynal cavity. Seminal ducts wide, shaped like a question mark, receptacles beanlike. Abdomen 1.50 long, 1.15 wide, dorsally with two rows of almost merged grey spots.
Distribution: Only known from highlands of Mt Kinabalu on Borneo, East Malaysia.
description: Published as part of Tanasevitch, Andrei V., 2018, A survey of the genus Nasoona Locket, 1982 with the description of six new species (Araneae, Linyphiidae), pp. 87-100 in Revue suisse de Zoologie 125 (1) on pages 91-93, DOI: 10.5281/zenodo.1196025