S. Mahunka szerk.: Folia Entomologica Hungarica 49. (Budapest, 1988)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK XJUX 1988 p. 13-39 The spider genera Savignya Blackwall, Diplocephalus Bertkau and Archaraeoncus Tanasevitch (Aranei, Linyphiidae) in the fauna of Siberia and the Soviet Far East By K. Y. ESKOV (Received December 20, 1987) Abstract: The Siberio-Far Eastern fauna of Archaraeoncus

, Diplocephalus and Savignya (1, 9 and 9 species, respectively) has been revised. A. sibiricus sp, n., D. marusiki sp. n., D. mirabilis sp.n., D. montanus sp.n., D. sphagni- colus sp. n., D. uliginosum sp. n., S. zero sp. n. and S. borea sp. n. (all - Eastern Siberia), S. basarukini sp.n., S. saitoi sp. n. and S. ussurica sp.n. (all Far East) have been described. D. subrostratus (O.P. - Cambr. , 1873) has been redescribed, the first description of the female of S. producta Holm,1977 has been given. New synonyms: D. subrostratu

s (O. P. - Cambr. , 1873) = D. cuneatus (Em. , 1909), syn. n. - D. maculifrons Kulcz. , 1926, syn.n. The rank of Hemistajus Schenk. , 1934 as an independent subgenus of Diplocepha lus has been treated as overrated, instead the barbatusgroup has been proposed. Savignya (s. str. ) has been redefined based on the genital conformation of both sexes. The synonymy of Savignya = Delorrhipis Sim. , 1884 has been rejected; S. harmsi Wund. , 1980, S. superstes Thal. , 1984 and S. galeriformis Tan. , 1987 have been shown to represent genera other than Savignya. A key has been elaborated to the species of Savignya. Comments have been given on the zoogeography of Savignya and Siberian Diplocephalus. The spider genera Savignya Blackwall, 1833 and Diplocephalus Bertkau, 1883 are treated as closely related in all the modern classifications of Linyphiidae (s. ME RR ET T 1963; HOLM 1977; MILLIDGE 1977). Both are placed within a highly homogenous group of genera, which MILLIDGE (1977) called Savignyagroup, also encompassing Erigonella Dahl,

1901, Araeoncus Simon, 1884, Dicymbium Menge, 1857 and Glyphesis Simon, 1926. All of them are united not only by the same general conformation of the male palp, but also by the same leg chaetotaxy. This similarity is so pronounced that sometimes all these genera are believed to represent in fact a single genus, Savignya by priority (cf. MILLIDGE 1977). However, we regard the phyletic relationships within this genus-group in a different way than MILLIDGE (1977). The genus Savignya s. str. may be characterized as follows: (1) the embolic division T-shaped, with the embolus slightly curved and directed backwards, and a pair of frontal angular apophyses; (2) the suprategulum phylloidally broadened and split longitudinally into a curved spine and a parallel rounded lobe; (3) the palpal tibia in the form of a broadly rounded lobe provided with a frontal, terminally unciform apophysis; (4) the vulva with a broad, flat median plate, bearing anteriorly a more or less distinct emargination and covering about a half of the oval receptacula. If the type of conformation of the male palp is to serve the basis of a classification, •Savignya s. str. must, in my opinion, be considered as the sister-group of the remaining genera of Savignyagroup. And if uniting all of them into a single genus Savignya s.lato may be accepted (with some reservations), a singled congregation of, e.g., Savignya and Delor-