Redescription of the genus Opisthoncus L. Koch, 1880 (Araneae: Salticidae) Author Gardzińska, Joanna Author Żabka, Marek text Zootaxa 2013 3717 4 401 447 journal article 10.11646/zootaxa.3717.4.1 23e9c4f0-f1c2-4ab7-8d5a-2cf7d90c88a0 1175-5326 246494 55248289-2E05-4F07-BFC7-99AFED7D4E93 Opisthoncus barbipalpis (Keyserling, 1882) ( Fig. 6 ) Hyllus barbipalpis : Keyserling 1882: 1344 . Chalcotropis barbipalpis : Simon 1903: 788 . Opisthoncus barbipalpis : Żabka 1991: 44 . Type material. 1M Holotype , Hyllus barbipalpis , ZMH, Mus. Godeffroy 8641, Australia : Gayndah [Queensland]. Diagnosis. Male cheliceral retromargins unidentate, both promarginal teeth of similar size, small. Frontal spurs small and cone-like, ventral ones small and lobe-like ( Figs 6 B, E). Fangs with internal outgrowths ( Fig. 6 B). Tegulum elliptic, embolus moderately long, arising at 7 o’clock, spermophore not meandering, palpal tibia elongate. In comparison with similar O . bellus palpal organ more slender, with tibia relatively longer (its length about 80% of cymbium length). Description. Male ( Fig. 6 ) about 7 mm long. Cephalothorax broadest anteriorly (CW = 86% of CL), with strongly developed cheek swellings, moderately high ( CH = 51% of CL), brown, covered with fine, short, pallid hairs ( Figs 6 A, C). Surrounding of eyes almost black. Clypeus narrow, with numerous whitish setae, overhanging its ventral edge ( Fig. 6 B). Chelicerae, endites and labium brown, anterior margins of endites and labium yellow. Sternum round, orange, clothed in fine, short and brown hairs. Abdomen cylindrical, yellow, with orange dorsal scutum (mostly discoloured, therefore colour pattern rather invisible), covered with sparse, brown hairs and mostly rubbed pale scales ( Figs 6 A, D). Venter dark yellow. Spinnerets orange. Legs I brown, others orange with brownish femora. Pedipalps orange, tinted brown. Palpal organ as in Figs 6 F–I. Dimensions. CL 3.36, CW 2.88, CH 1.72, AEW 2.04, PEW 2.08, EFL 1.20, AL 3.76, AW 1.68, L1 9.44 (2.44+2.20+2.40+1.56+0.84) Female unknown.