Porrhomma nekolai Růžička 2018, new species

• Main Author: Růžička, Vlastimil
• Format: Other/Unknown Material
• Language: unknown
• Published: 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Araneae; Linyphiidae; Porrhomma; Porrhomma nekolai; Yukon; Canada; Magadan; Kluane Lake; Elk River; Amguema; Egvekinot; Cultus Bay; Chukotka; Chukotka Autonomous Okrug; Tundra
• Online Access: https://zenodo.org/record/5963996; https://doi.org/10.5281/zenodo.5963996

Porrhomma nekolai new species Figs. 38A–F, 39. Male holotype, RUSSIA: Chukotka Autonomous Okrug, Christ Bay, env. of Egvekinot Town, SE slope, under stones, 15 Jul 1988, leg. Yu. M. Marusik (ZMMU). Paratypes: 1 ♀, with same data as for holotype; 1 ♂ 3 ♀, Egvekinot Town, S slope, stony habitats in mountain tundra, 15 Jul 1988, leg. Yu. M. Marusik; 1 ♀, Chukotka Autonomous Okrug, Amguema River, 67°03'N, 178°58'W, stony habitats, 22 Jul 1988, leg. Yu. M. Marusik; 1 ♂ 1 ♀, Magadan Area, Duchka River, env. of Magadan, 13 Sep 1986, leg. Yu. M. Marusik (ZMMU). ♀, CANADA: Yukon Territory, Kluane Lake, Cultus Bay, 61°11'N, 138°20'W, 1650 m a.s.l., 10–23 Jul 1993, leg. Yu. M. Marusik (CNC). Ƌ, USA, Iowa, Delaware County, Elk River East, ca 7 km WSW of Colesburg, 42.6284°N, 91.9209°W, 13 July 1998, leg. V. Růžička (NMP, No. P 6A 6384). Ƌ, USA, Iowa, Delaware County, Backbone Cave, July, 45 yds from end, u. wood (AMNH). Etymology. The species is named after Jeffrey C. Nekola (University of New Mexico, Albuquerque, USA). Diagnosis. A large group of species is characterised by embolus of middle length and S-shaped ascending parts of copulatory ducts: P. borgesi, P. cambridgei, P. convexum, P. errans, P. nekolai, P. oblitum, P. pygmaeum and P. rosenhaueri. P. nekolai new species can be distinguished from all these species by the following combination of characters: large species (CW> 0.70), eyes reduced (PME–PME 1.7–2.0), legs very long (Mt I/CW> 1.3). Description. Male holotype (from Chukotka, Christ Bay, Egvekinot Town, 15 Jul 1988). Carapace yellowbrown, 1.10 mm long, 0.77 mm wide, eyes reduced, PME–PME = 1.7 (Fig. 38A). Abdomen greyish-yellow. Fe I with one dorsal and one prolateral spine. Ti I with one prolateral spine, Ti I–II with one retrolateral spine. Mt I/CW = 1.43. Embolus of middle length with a narrow velum. AP has the form of a bird head, it is slender, narrowed (Fig. 38B). Male paratype (from Iowa, Delaware County, Elk River East, 13 July 1998): A palp (Fig. 39). Female paratype (together with holotype): ...