Porrhomma altaica Růžička 2018, new species

• Main Author: Růžička, Vlastimil
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Araneae; Linyphiidae; Porrhomma; Porrhomma altaica; Tundra
• Online Access: https://doi.org/10.5281/zenodo.5963965; http://treatment.plazi.org/id/03C6A93BFFDCFFD8FF7CFEC4822239D5

Porrhomma altaica new species Figs. 6A–F, 7. Porrhomma pallidum — Tanasevitch (2013b), misidentification, examined. Material examined. Holotype : Ƌ, KAZAKHSTAN: East Kazakhstan Area, SW Altai Mts., Azutau Ridge, 10 km SE of Matobai, 2200–2300 m a.s.l., 48°35'N, 85°44'E, 10 Jul 1997, leg. R. Dudko & V. Zinchenko (ISEA); labelled as P. pallidum by Tanasevitch (2013b), misidentification. Paratypes . ♀, with same data as for holotype; 2 ♀, East Kazakhstan Area, SW Altai Mts., near Markakol Lake, 10 km ESE of Urunkhayka, 2220–2400 m a.s.l., 48°45'N, 86°08'E, 19–20 Jun 1997, leg. R. Dudko & V. Zinchenko (ISEA); labelled as P. pallidum by Tanasevitch (2013b), misidentification; 1 ♂ 2 ♀, East Kazakhstan Area, Kurchyumskiy Mt. Ridge, upper reaches of Topolyovka River, subalpine, 2100–2200 m a.s.l., 4 –5 Jul 1997; 1 ♀, upper reaches of Kurchyum River, mountain tundra, 2450 m a.s.l., 48°55.5'N, 85°47'E, 3 Jul 1997, leg. R. Dudko & V. Zinchenko (ZMMU). 1 Ƌ 1 ♀, RUSSIA: Altai Mts., Altaisky Kray, Charyshsky Distr., upper reaches of Sentelek River, Gor’ky Belok Mt. Ridge, 1850–1950 m a.s.l., 51°04.5'N, 83°35'E, 26 Jun 2011, leg. R. Dudko (ISEA). Etymology. The specific name is derived from the Altai Mountains. Diagnosis. This new species shares the following characters with the species P. egeria , P. campbelli and P. terrestre : embolus is short (reaching to the tip of AP) and vulva is of the most simple type (spermathecae start at the midway of the ascending part of the copulatory ducts). It can be distinguished from P. egeria and P. campbelli by absence of femoral spines and the form of AP, and from P. terrestre by size (CW> 0.60). Description. Male holotype (from Altai Mts., Azutau Ridge, 10 Jul 1997). Carapace yellow-brown, 1.03 mm long, 0.74 mm wide, eyes somewhat reduced, PME–PME = 1.4 (Fig. 6A). Abdomen greyish-brown. Fe without dorsal spines, Fe I with one prolateral spine. Ti I with one prolateral and one retrolateral spine, Ti II with one retrolateral spine. Mt I/CW = 1.04. Embolus short with a narrow ...