On linyphiid spiders (Araneae) from the Eastern and Central Mediterranean kept at the Muséum d’histoire naturelle, Geneva Author Tanasevitch, Andrei V. text Revue suisse de Zoologie 2011 2011-03-31 118 1 49 91 journal article 10.5962/bhl.part.117799 0035-418X 6311696 Jacksonella bidens sp. n. Figs 70-76 HOLOTYPE : Ƌ, Cyprus , 3 km S of Prodhromos , 1500 m a.s.l. , sifting litter under Platanus , 10.IV.1981 , leg. C. Besuchet (11b). PARATYPES : 1 Ƌ, 1 ♀ , Cyprus , above Ayia , 950 m a.s.l. , sifting litter under Pinus , 12.VII.1977 , leg. C. Besuchet [11a]. – 1 ♀ , Paphos District , Mamonia , bank of Dhiarisos , sifting litter under Tamarix , 14.VII.1977 , leg. S. Vit [c/26]. – 1 ♀ (epigyne only), Greece , Samos , route Kambos ( E of Aghios Konstantinos ) - Vourliotes , above cloister “Moni Vronda”, in soil under Pinus sp. , 520 m a.s.l. , 26.XI.1991 , leg. B. Hauser [ZS-91/63]. ETYMOLOGY: The specific name, a noun, refers to the armament of its chelicerae. DIAGNOSIS: The species is characterised by the shape of the embolic division and by a very long median membrane. DESCRIPTION: Male paratype . Total length 1.51 ( holotype 1.68). Carapace unmodified, 0.75 long, 0.58 wide, brownish yellow. Chelicerae 0.38 long, with a toothlike process as in Fig. 70. Maxillae each with a stout tooth anteriorly. Legs yellow. Leg I 2.19 long (0.63+0.18+0.55+0.48+0.35), IV 2.10 long (0.60+0.18+0.57+0.45+0.30). Chaetotaxy: 2.2.1.1, length of spines about one or two diameters of segment. TmI 0.35. Metatarsus IV without trichobothrium. Palp (Figs 71-74): Tibia unmodified. Protegulum membraneous, almost transparent. Distal suprategular apophysis sharpened distally. Median membrane like a long, narrow, almost transparent band, scarcely visible. Embolic division complex, with a large pointed anterior radical process and several small outgrowths. Embolus proper short and hook-shaped. Abdomen 0.75 long, 0.50 wide, pale grey. Female. Total length 1.55. Carapace 0.75 long, 0.50 wide. Chelicerae 0.28 long, unmodified. Maxillae without a stout tooth. Leg I 1.99 long (0.60+0.20+0.53+0.43+ 0.23), IV 2.11 long (0.63+0.18+0.55+0.45+0.30). TmI 0.35. Abdomen 0.82 long, 0.50 wide. Epigyne and vulva as in Figs 75 & 76. Body and leg coloration, as well as chaetotaxy, as in male. TAXONOMIC REMARKS: The new species differs clearly from the single known congener, J. falconeri (Jackson, 1908) , by the presence of a stout tooth on the maxillae, by a well-developed distal suprategular apophysis, by a bigger and more complex embolic division, as well as by the shape of the epigyne. DISTRIBUTION: Known from the islands of Cyprus and Samos only.