Proislandiana pallida

• Published in: Ice and Snow
• Main Author: Dimitrov, Dragomir
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Araneae; Linyphiidae; Proislandiana; Proislandiana pallida; Amderma; Arkhangelsk; nenets
• Online Access: https://doi.org/10.5281/zenodo.3688022; http://treatment.plazi.org/id/03955567FFBCC71313E13B09FBC2FEBC

Proislandiana pallida (Kulczyński, 1908) Figs 17–24 Microneta (?) pallida Kulczyński, 1908: 36, pl. 1, Figs 34–35 Proislandiana pallida : Tanasevitch, 1985: 56, Figs 10–12 Proislandiana pallida : Tanasevitch & Khruleva, 2017: 355 Material examined. 2♂, 2♀. Russia, Arkhangelsk area, Nenets AO, env. of Amderma, 69.760° N, 61.659 ° E, 23.07.– 06.08.2016, leg. A. Tanasevitch, O. Khruleva (MHNG). Diagnosis. The species is close to P. beroni n. sp. Males can be distinguished by the bulged paracymbium (Fig 17), as well as by the shape of the embolic membrane (Fig 17–19) and the shape of the prolateral tibial apophyse. In P. pallida the prolateral tibial apophyse is bent in the middle, the distal part is strait, situated perpendicularly to the cymbium (Fig 20), while in P. beroni n. sp. it is arc-shaped (Figs 4, 8). The females differ from those of P. beroni n. sp. by the longer and narrower epigynal scape (Figs 21, 23). Seen from lateral view, the scape of P. pallida is ringshaped (Fig 22), while in P. beroni n. sp. it looks like semi-ring (Figs 10, 14). Redescription. Male. Measurements. Total length 1.66; carapace length 0.76, width 0.55; sternum length 0.45, width 0.40; abdomen length 0.90, width 0.72; clypeus length 0.11; chelicerae length 0.35; eye diameters AME 0.035, ALE 0.050, PME 0.050, PLE 0.050; leg measurements I—2.57 (0.30, 0.65, 0.20, 0.54, 0.45, 0.43), II—2.28 (0.32, 0.45, 0.18, 0.50, 0.43, 40), III—2.02 (0.29, 0.54, 0.15, 0.36, 0.36, 0.32), IV—2.56 (0.29, 0.66, 0.18, 0.60, 0.54, 0.40); palpal cymbium length 0.26. Carapace unmodified. Chelicerae with four large, sharp promarginal and four small retromarginal teeth. The retromarginal teeth located in the distal part of the chelicerae, near the cheliceral fang. Coloration. Carapace, chelicerae and legs light yellow. Sternum a little darker than the carapace.Abdomen gray, without pattern, covered with small dark hairs. Dorsal tibial spination 2, 2, 2, 1. The position of TmI—0.45. Palp (Figs 17–20). Tibia with one prolateral and one retrolateral ...