Nasoona orissa, Tanasevitch, 2018

Tanasevitch, Andrei V., 2018, A survey of the genus Nasoona Locket, 1982 with the description of six new species (Araneae, Linyphiidae), Revue suisse de Zoologie 125 (1), pp. 87-100 : 90

Nasoona orissa sp. nov.

Figs 4 , 34-41

Holotype: ZMMU; male; INDIA, Odisha State (= Orissa before 2011), road from Banigocha to Daspalla, near Padiakutibari , 20.382°N 84.771°E; 17.-25.I.2014; leg. K. Tomkovich.

Paratypes: ZMMU; 3 males; MHNG ; 2 males; collected together with the holotype.

Diagnosis: The new species is characterized by the peculiar shape of the male papal tibia, by the distal apophysis of the convector which is divided into two lobes, as well as by a wide, strongly bent distal process of the paraconvector. The massive distal apophysis of the convector, as well as the shape of the distal process of the paraconvector of N. orissa sp. nov. resemble those of N. crucifera , which is widespread in the Oriental Region, but both species are clearly distinguished by the structure of the palpal tibia. The shape of the convector, as well as the strongly divided palpal tibia are similar to those of N. sulawesi sp. nov., but N. orissa sp. nov. can be easily distinguished by the shape of the distal process of the paraconvector.

Etymology: The specific epithet is a name in apposition referring to the “terra typica”, the old name of the Odisha State in India.

Description:

Male (paratype): Total length 1.70. Carapace 0.75 long, 0.60 wide, pale brown, with a postocular elevation bearing bent, forward-directed, stout spines as shown in Fig. 4 ; eyes normal. Chelicerae 0.33 long, unmodified. Legs yellow. Leg I 2.61 long (0.70+0.18+0.68+0.63+0.42), IV 2.69 long (0.75+0.18+0.70+0.68+0.38). Chaetotaxy: 2.2.1.1, length of spines about 1.5-2.5 diameters of leg segment. Each metatarsus with a trichobothrium. TmI 0.52. Palp ( Figs 34-41 ): Tibia divided into four lobes: prolateral one keel-shaped; dorso-prolateral one long, narrowing at middle; dorso-retrolateral one conical, with several very short spinules terminally; retrolateral outgrowth wide, forming a shallow cup. Proximal part of paracymbium narrow, L-shaped; distal part wide, ending in a hook. Distal suprategular apophysis short, flat, with a sharp, black tooth in middle. Embolus long and thin, forming a loop, radix reduced. Main body of convector relatively narrow, curved; its distal apophysis black, well sclerotized, divided into two uneven lobes with serrate walls. Paraconvector massive, complicated, with serrate edges and distinctly protruded distal process. Abdomen 1.00 long, 0.60 wide, dorsally white, with three longitudinal pairs of large, grey spots.

Female: Unknown.

Distribution: Only known from the type locality in western India.

Figures

Figs 1-16. Photographs of Nasoona indianа sp. nov., male holotype (1-3); N. orissa sp. nov., male paratype (4); N. intuberosa sp. nov., male paratypes (5-7) and female paratype (8); N. kinabalu sp. nov., male holotype (9); N. sabah sp. nov., male paratype from Liwagu Trail (10-12) and male paratype from Silau-Silau Trail (13); N. sulawesi sp. nov., male holotype (14-16).

Figs 34-41. Nasoona orissa sp. nov., male paratype. (34-35) Right palp, retrolateral and prolateral view, respectively. (36-38) Palpal tibia, retrodorsal, retrolateral and dorsal view, respectively. (39) Paracymbium. (40) Distal suprategular apophysis. (41) Distal part of embolus and paraconvector.