Gongylidioides rimatus ( Ma & Zhu 1990 )

Tanasevitch, Andrei V., 2006, On some Linyphiidae of China, mainly from Taibai Shan, Qinling Mountains, Shaanxi Province (Arachnida: Araneae), Zootaxa 1325, pp. 277-311 : 303-305

Gongylidioides rimatus ( Ma & Zhu 1990)

Figs 78–83

Material. 1 ♂ ( SMF), China, Shaanxi Prov., S flanks of Taibai Shan, above Houshenzi, primary broadleaved forest, 1700–2600 m, 9.VI.1997, leg. J. Martens & P. Jäger. Paratypes: 1 ♂, 2 Ψ ( SMF), same, above Houshenzi, primary broadleaved forest, 1700–2600 m, 10.VI.1997, leg. J. Martens & P. Jäger.

Taxonomic remarks. This species was originally described from Hubei Province, China as Oedothorax rimatus by Ma & Zhu (1990). It seems to be especially closely related to the Chinese and Japanese Gongylidioides onoi Tazoe 1994 (= Aprifrontalia quadrialata Gao, Xing & Zhu 1996 ), but is easily distinguished by the less strongly developed head elevation on the male carapace, the absence of a deep distal hollow on the paracymbium, as well as by the less strongly narrowed epigynal plate.

Short description. Male. Total length––2.40. Carapace 1.15 long, 0.93 wide, dirty red, cephalic division unmodified, with a group of small bristles ( Fig. 78 ). Chelicerae 0.38 long. Legs pale yellow. Leg I, 3.29 long (1.00+0.28+0.88+0.63+0.50), IV––3.59 long (1.0++0.30+0.93+0.88+0.48). Chaetotaxy 2.2.1.1. Mt I–IV each with a trichobothrium. Ti and Mt I–II (in male sex only!) with sparse long hairs situated almost at right angle to leg segment. TmI––0.71. Palp ( Figs 79–82 ): Palpal tibia with a large lateral outgrowth. Distal part of paracymbium with several short spines. Ventral part of tegulum weakly sclerotised, almost white, protegulum membranous. Suprategular apophysis small. Radix of embolic division broad, V­shaped, carrying a dark tooth. Embolus relatively short. Opisthosoma 1.28 long, 0.88 wide, dark grey, with a pale, scarcely visible, median stripe dorsally.

Female. Total length––2.23. Carapace 1.08 long, 0.80 wide, unmodified. Chelicerae 0.40 long. Leg I, 3.16 long (0.85+0.28+0.80+0.75+0.48), IV––3.51 long (1.00+0.30+0.88+0.88+0.45). TmI––0.70. Opisthosoma 1.25 long, 0.80 wide. Epigynal plate pyriform, as in Fig. 83 . Body and leg colouration, chaetotaxy as in male.

Figures

FIGURES 78 – 83. Gongylidioides rimatus (Ma & Zhu 1990). 78 male carapace (lateral view), 79 right palp (retrolateral view), 80 palpal tibia (dorsal view), 81, 82 embolic division (81 ventral view, 82 dorsal view), 83 epigyne (ventral view). Abbreviations: E embolus.