Revision of the spider genera Nilus O. Pickard-Cambridge 1876, Sphedanus Thorell 1877 and Dendrolycosa Doleschall 1859 (Araneae: Pisauridae) Author Jäger, Peter text Zootaxa 2011 3046 1 38 journal article 46245 10.5281/zenodo.278844 da2ca486-83fa-4e10-99eb-f3374d9a2a51 1175-5326 278844 Dendrolycosa sierwaldae spec. nov. Figs 135–137 , 141–143 , 167 : 17 Type material. Holotype , female ( SMF 9907629), New Guinea , sub: Nilus icadius ( L. Koch 1876 ) , Roewer det. 1938, ex. Coll. Roewer, Pisauridae No. 46, RII 7629. Etymology. The species is named in honour of Petra Sierwald (Field Museum, Chicago) for her important contributions to the taxonomy and systematics of the Pisauridae ; noun (name) in genitive case. Diagnosis. Medium sized spiders with body length of 14.1 mm (females) and colour pattern A ( Figs 135–137 ). Carina with posterior incision, anterior margin concave. Anterior rims uniquely long, S-shaped, running from anterior to posterior, diverging posteriorly. Spermathecal heads small, reaching not anterior half of internal duct system ( Figs 141–143 ). FIGURES 141–146. Dendrolycosa spp., female copulatory organs (141, 144 epigyne, ventral view; 142, 145 vulva, dorsal view; 143, 146 schematic course of internal duct system). 141–143 Dendrolycosa sierwaldae spec. nov. , holotype, female from New Guinea. 144–146 Dendrolycosa yuka spec. nov. , holotype, female from Australia, Queensland. Description. Female. PL 6.0, PW 4.8, AW 2.7, OL 8.1, OW 5.0. Eye diametres: AME 0.29, ALE 0.27, PME 0.28, PLE 0.28. Eye interdistances: AME–AME 0.18, AME–ALE 0.09, PME–PME 0.21, PME–PLE 0.43, AME– PME 0.20, ALE–PLE 0.42, clypeus AME 0.32, clypeus ALE 0.30. Leg and pedipalpus measurements: pedipalpus 6.6 (2.1, 1.0, 1.4, -, 2.1); leg I 21.8 (6.3, 2.5, 5.5, 5.2, 2.2); leg II 21.8 (6.2, 2.7, 5.5, 5.2, 2.2); leg III 17.2 (5.3, 2.1, 3.8, 4.2, 1.8); leg IV 21.9 (6.6, 2.1, 5.3, 5.9, 2.2); leg formula 4(12)3. Spination: palp: femur 151, patella 120, tibia 1201, tarsus 1015 (incl. 1 distal ventral median spine); Femur I 535(333), II 435, III 534, IV 332; Patella I–IV 121, Tibia I–II 2228 , III–IV 2226 ; Metatarsus I–II 2027 , III 3037, IV 3038 (metatarsi I–IV with distal median ventral spine). Chelicerae with 3 anterior (median largest) and 3 equally sized posterior teeth. Palpal claw with 8 teeth, paired leg claws with 10–12 teeth. Copulatory organ as in diagnosis. Epigynal field wider than long, with one pair of slit sense organs antero-laterally. Central part of middle field with deep impression. Medium septum posteriorly narrow. Few wrinkles in posterior lateral lobes of epigyne. Internal duct system with broad copulatory ducts. Base of spermathecae ellipsoid, not covered by copulatory ducts ( Figs 141–143 ). Colour in ethanol ( Figs 135–137 ): yellowish to reddish brown with colour pattern A, specimens faded. Dorsal prosoma with 2 broad bright marginal bands and a narrow line between fovea and eyes. Sternum and ventral coxae yellowish brown, without pattern. Gnathocoxae yellowish brown, brighter distally; labium yellowish to reddish brown with white distal lip. Chelicerae yellowish brown. Palp and legs yellowish brown without pattern, tarsi, metatarsi and distal tibiae darker. Dorsal opisthosoma with characteristic dark patch in anterior half bordered by thin white lines and a lighter brown folium, the latter with undulating lateral margins in posterior half and indistinct in the present specimen. Ventral opisthosoma brighter with 4 longitudinal lines of indistinct muscle sigilla. Male : unknown. Distribution. Known only from the type locality, which could refer to both parts of New Guinea : the Indonesian provinces West Irian Jaya and Papua as well as the country Papua New Guinea in the eastern half of the island ( Fig. 167 : 17).