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

Diplocephalus marusiki sp.n. (Figs 12-17) Holotype, <j> - Magadan Area, upper Kolyma River, Sibit-Tyellakh, tundra-like heath in spring valley, 31. VIII. 1984 (leg. YM). - Paratypes: 2 6, 1 <j> - together with holotype; 1 6, 2 p - same biotope, 14. VIII. 1984 (leg. IG); bß, 5 o. (HNHM), 2 3, 2 o. (SMF), 26_ô\ 34 çsame locality, various types of wet heathes in the taiga belt of Bolshoy Annachag Mt. Ridge, 1.-28. VIII. 1985 (leg. YM). Description: Total length of male/female 1.65- 1.80/1. 65-1.88. Carapace greyishbrown, its length/width 0. 73-0. 75/0. 63-0. 65 in male, 0. 70-0. 73/0. 53-0. 55 in female; male carapace as in Fig. 12. Chelicerae with 4 promarginal teeth. Legs greyish-brown, length of joints of legs I/IV 0. 55/0. 63+0. 20/0. 20+0. 40/0. 50 + 0. 35/0. 45+0. 33/0. 33 in male, 0.53/0.55+ 0. 20/0. 20+0. 38/0. 48+0. 33/0. 40+0. 33/0. 33 in female; tibial spines 2211, their length Id of joint in female, 3/4 d in male; Tm I - 0. 50, Tm IV absent. Abdomen dark grey, almost black. Genitalia of both male and female as in Figs 13-17. Comparison. The new species is remarkably closely related to D. barbatus (L. Koch, 1879) (cp. HOLM 1967 and Figs. 7-11). However, in the male of D. marusiki sp.n. the tip of the palpal tibia is retorted roundly (not truncate), both embolus and frontal apophysis of the embolic division end blunter. The female of D. marusiki sp. n. differs even more sharply in the lateral plates of the epigyne being oblong-triangular, the drop-shaped apophysis of their inner angles much narrower and shorter, receptacles B elevated above fore margin of receptacles A. Distribution. Siberia: southern point of Cerskogo Mt. Ridge. Etymology. The new species I am glad to name after my friend and colleague, Dr. Yuriy M. MARUSIK (Magadan). Diplocephalus mirabilis sp.n. (Figs 18-24) Holotype, S - Magadan Area, Kolyma River 10 km upstream of JVetrenyi, bushes of Salix and Betula at the edge of Carex swamp, 5. VIII. 1984 (leg. KE). - Paratypes. 2 ç - together with holotype; 46 Ô, 60 ç - Kolyma River near Vetrenyi, Khailik Spring, Salix bushes on sandy bank of spring, 16-18.DÍ. 1987 (leg. YM); 1 p - Detrin River (right tributary of Kolyma River) ca. 56 km upstream of mouth, Vakhanka Spring, valley forest of Populus and Chosenia, 14. VIII. 1984 (leg. KE); 2 ^ - same locality, meadow-like vegetation on the slope of a hill, 30. VIII. 1986 (leg. YM); 1 S, 6 o. - upper Kolyma River, Sibit-Tyellakh, taiga belt of Bolshoy Annachag Mt. Ridge, Salix bushes at Carex swamp, 23. VIII. 1984 (leg. KE); 2 ^ same locality, dry forest of Betula at southern slope of hill, 10. DC. 1984 (leg. KE); 16same locality, wet Betula forest with grasses, 3. DC. 1984 (leg. KE); 1 3, 1 p (SMF) - same locality, Alnus fruticosa bushes with Festuca, 10. IX. 1987 (leg. YM); 3 6, 7 <j> - same locality, alpine belt of Bolshoy Annachag Mt. Ridge, 1300 m, lichen mountain tundra, 7. VIII. 1984 (leg. KE); 13, 5 ç - same locality, alpine belt, 1250 m, Carex-Sphagnum bog, 22. VIII. 1984 (leg. KE); _3ß, 4 ç - same biotope, 7. VII.-2. VIII. 1987 (leg. YM); 1_S, 3p- same locality, alpine belt, 1250 m, dwarfish bushes of Alnus fruticosa, 8. VIII. 1984 (leg. KE); 1 3, 3 ç same locality, alpine belt, 1300-1700 m, meadow-like vegetation on southern slopes, 13. VII. 1983 and 8. IX. 1987 (leg. YM); 1 8, 1 p - environs of Magadan, Hertner Bay, Nyuklya, 3. V. 1986 (leg. YM); 4 6, 4 ^ (HNHM) - upper Kolyma River, Sibit-Tyellakh, VI-VIII. 1985 (leg. YM); 10- Evenk Autonomous Region, Taimura River, mouth of Chambe River, floodland Salix bushes, 16. VIII. 1982 (leg. KE). Description. Total length of male/female 1. 68- 1. 80/1.63- 1.75. Carapace brownishyellow, its length/width 0. 75-0. 80/0. 58-0. 60 in male. 0. 68-0. 73/0. 50-0. 53 in female; male carapace as in Fig. 18. Chelicerae with 3 promarginal teeth. Legs brownish-yellow; length of joints of legs I/IV 0. 50/0. 58+0. 18/0. 18+0. 43/0. 50+0. 35/0. 40 + 0. 33/0. 33 in male, 0. 50/0. 55+0. 18/0. 18+0. 40/0. 48+0. 33/0. 38+0. 30/0. 30 in female; tibial spines 2211, 1 d of joint in female, 3/5 d of joint in male; Tm I - 0 48, Tm IV absent. Abdomen grey. Genitalia of both male and female as in Figs 19-24. Comparison. By the shape of male palp the new species displays certain affinities with D. dentatus Tullgren, 1955, but differs by the cephalic elevation of the male carapace strongly decleaving backwards and much elongated palpal tibia (cp. WIEHLE 1960). The epigyne of