Diplocephalus mirabilis Eskov 1988

• Main Authors: Song, Yanjing, Li, Shuqiang
• Format: Other/Unknown Material
• Language: unknown
• Published: 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Araneae; Linyphiidae; Diplocephalus; Diplocephalus mirabilis; Kolyma; Magadan; Yura; Tyellakh; kolyma river
• Online Access: https://zenodo.org/record/4549318; https://doi.org/10.5281/zenodo.4549318

Diplocephalus mirabilis Eskov, 1988 (Figs 6-8) Diplocephalus mirabilis Eskov, 1988: 18, figs 18-24 (type locality: Magadan Area, Russia). MATERIAL EXAMINED. — Russia. Russia Far East, Aborigen field station, Sibit-Tyellakh River Basin, Upper Kolyma River, summer 1986, coll. Yura M. Marusik, det. Yura M. Marusik, 2 ♀♀, 2 ♂♂ (IBPN). China. Jilin Province, Mt Changbaishan, 42.03°N, 127.98°E, 11.VIII.1985, 6 ♀♀, 3 ♂♂ (JLU). DISTRIBUTION. — Russia, China (Jilin) (Song et al. 1999; Platnick 2008) (Fig. 12). DESCRIPTION Male Total length 1.53. Carapace 0.76 long, 0.61 wide, dull yellow, slightly swollen, bearing shallow postocular sulci; with hairs densely distributed in the ocular area and on the clypeus (Fig. 7A). Abdomen grey yellow. Clypeus 0.16 high. AME diameter 0.03, ALE 0.04, PME 0.03, PLE 0.04, AME interdistance 0.75 times their diameter, AME-ALE interdistance 1.00 times ALE diameter, PME interdistance 2.20 times their diameter, PME-PLE interdistance 1.33 times PLE diameter.Sternum 0.40 long, 0.42 wide. Coxa IV interdistance 1.20 times their width. Chelicerae with 6 promarginal teeth, 5 retromarginal teeth (Fig. 6D).Tibia I 5.46 times longer than deep. Tm I 0.43, Tm IV absent. Dorsal spines on tibia of leg IV: 2-2-1-1; dorsal spine on patella of leg IV: 1-1-1-1. Leg measurements: I: 1.89 (0.55, 0.21, 0.44, 0.35, 0.34); II: 1.74 (0.51, 0.19, 0.39, 0.34, 0.30); III: 1.54 (0.43, 0.20, 0.33, 0.32, 0.28); IV: 2.03 (0.58, 0.21, 0.52, 0.42, 0.30). Palp:tibia produced into a strongly curved, acerate prolateral apophysis whose base extended retrolaterally to form a triangular membrane; with 1 retrolateral and 1 prolateral trichobothrium (Fig. 6E). Paracymbium spiral, with terminal part hooked (Fig. 6B). Tegulum distal to subtegulum in unexpanded palp. Suprategulum produced into a dentiform marginal apophysis and a bifurcate distal apophysis modified with mini membrane distally (Fig. 7D). Somewhat rounded embolic membrane totally covered by embolic division (Fig. 7C). Anterior radical process crescent-shaped in ...