In addition to the genus diagnosis, the following features characterize the species:FEMALECephalothorax dark brown, covered with mixed dark, whitish and white, adpressed, very small and indistinct setae; eye field blackish; dorsum of thorax lighter brown; sides blackish brown; more noticeable concentrations of white setae produce an indistinct elongated spot around dorsal rim of eyes III, which extends slightly behind, and fragments of two loose white streaks on the lighter brown, posterior, thoracic slope. There are no dorsal white streaks, at least in the studied specimen; sides with sparse whitish setae, there is no white, ventral margin.Abdomen covered with dark grey setae and devoid of contrasting stripes; there is a median longitudinal row of several dark and light chevrons, not sharply outlined, which are slightly larger and more contrasting than in related, similarly coloured species; the stripe is separated from margins of abdomen with thin darker lines. Sides of abdomen are slightly lighter than dorsum. Frontal aspect: anterior end of eye field with dense, black bristles stretching horizontally or diagonally forwards above eyes I; there is a concentration of dense white setae between the bases of these bristles, and partially hidden by them. Eyes I surrounded by spots of inconspicuous, light fawn and dark setae; clypeus brown, with sparse, colourless and brown setae, appearing almost bald. Pedipalps appear light yellow; legs I dark, annulated. Ventral aspect generally brown, including abdomen. Legs brown with darker annuli, tarsi I with indistinct scopula. Epigynum has a pair of large grooves with sclerotized rims, separated by a narrow sclerotized septum. Copulatory openings are hidden beneath the anterior rim of the depression and are unusual by their longitudinal, median orientation. The copulatory channels are short, broad at the openings, runs first sideways, then turning anteriorly and narrowing and finally joining spermathecae. Spermathecae are unusual by their transverse position in the anterior part of the epigynum, without a part turned posteriorly; they are heavily sclerotized, oval bodies with internal convoluted chambers. Measurements (mm). Female. Length of cephalothorax 3.06; length of abdomen 3.23; length of 5 segments of leg I 4.17. © PRÓSZYŃSKI 2003 Body: Markings: dark or bright vertical stripes. Eyes: AER: dorsal edge procurve. Labium: Length: wider than long. Distribution: Geographical Distribution: Middle East. COMMENTSDiagnosis. Abdomen grey without contrasting stripes, epigynal depressions transversally oval, shorter than half length of epigynum, separated by a septum.Seasonal appearance of adult specimens. Females - II. Etymology. Named for Dr. Robert Jackson of Canterbury University, Christchurch, New Zealand, prominent arachnologist and student of Salticidae behavior, who contributed a number of species which he collected in Israel. © PRÓSZYŃSKI 2003 |