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[See also Catalogue: Evarcha]
Descriptions of New Taxa
A Supplement to Salticidae Diagnostic Drawings Library
by Jerzy Proszynski 1997
Descriptions of new species, in print now, or in preparation for print, made provisionally available for the Users of the Diagnostic Drawings Library because of long delay in publication.
Arachnologists using this description and drawings are kindly requested to acknowledge that in their publications.
Attention: the International Code for Zoological Nomenclature does not recognize taxonomic names unless description is printed on paper.
Evarcha praecincta Wesolowska et van Harten, 1994
Specimen from Arava Valley
See also Drawings
Pellenes praecinctus: Proszynski 1984: 104 (name following misidentification by Simon as Mogrus praecinctus in the collection in NHM Vienna, name preoccupied by Mogrus praecinctus)
Evarcha praecincta Wesolowska, van Harten 1994: 25-28, figs 52-58 (name preoccupied by Mogrus praecinctus)
Material: male - Israel: Arava Valley (approx. 50 km N of Eilat): Kibbutz Ktora (Qtura?), citrus orchards, in the leaf litter under trees, III. 1994. Leg. Y. Lubin; male - "Mogrus praecinctus" Khor Atta, Werner, 1905, det. Simon" in NH-Museum, Vienna (not congeneric with lectotype of Mogrus praecinctus Simon 1890 from Aden, in Simon collection MNHN, designated by M.E. Galiano)
Diagnosis. Two wedge-shaped streaks of white adpressed setae on the eye field; bulbus round, embolus broad, bending tightly along edge of bulbus, its anterior half split indistinctly into narrowing anterior needle, tightly press to posterior plate with raised edges.
Cephalothorax fawn, eye field with two wedge-like streaks of white adpressed setae, pointed anteriorly, running from near eyes III to medial part of rim of AME; remaining eye field covered by colorless setae appearing fawn on fawn tegument; a belt of white setae along edge of flat part of thorax runs to below eyes III, sides with tegument yellow, covered by adpressed dark setae making irregular dark areas; edge of carapace black, from under eyes II with thin line of intensively white setae turning into white belt on clypeus, areas under ALE lighter than remaining sides. No Thyene-like tufts of longer setae arising below eyes II.
Abdomen: differentiated with contrasting darker marginal area, consisting of dark blackish grey ridges separating chains of yellowish dots of the same diameter, covered with yellowish setae with some almost black anteriorly, these margins surrounds intensively white central white spot of white tegument covered with white adpressed setae, thin streaks of whitish setae separated by bald lines cover anterior median grey tegument streaks, an almost balck spot in front of dpinnerets with are dark grey and yellow; lateral adge and sides below it clean whitish; anterior vertical wall of abdomen, below edge balackish grey, extending down to the lung-box area.
Frontal aspect: eye field appear light fawn, darker greyish fawn along sides, with two thin wedges of white setae converging at touching point of rims of AME; upper halves of rims of AME covered with longer and stronger dark brown setae, intermixed with sparse white, lower halves of rims covered with shorter yellow and whitish setae, rims of ALE covered with short yellow and whitish setae, externally slightly darker; space under AME and ALE yellowish fawn edge of clypeus covered with narrow line of intensively white short setae, below AME longer and overhanging cheliceral bases, from under ALE sidewards that line is split into two, leaving dark brown narrow bald line. Chelicerae short and slender, light yellow with whitish setae - long laterally, short and sparse medially. Pedipalps white with white setae, cymbium darker yellow to brown. Ventral aspect: mouth parts yellow, coxae I-II yellowish, III-IV whitish; sternum yellowish grey with margins and anterior part darker; abdomen ventrally whitish with anterior part (in front of the epigastric furrow) dark grey, median area greyish - broad anteriorly and narrowing posteriorly, spinnerets grey.
Legs. Femur I white with smal black spot and a few black scales prolatero-apically, patella I dorsally whitish, laterally greyish yellow, tibia I dark greyish yellow laterally and at both ends of dorsal surface, median part of dorsal surface being whitish; tarsus and metatarsus greyish yellow, dark setae atop tarsus. Legs II-IV similarly light, with femora apical darkening more pronounced.
According to Wesolowska and van Harten 1994: 25-28 coloration of female of this species from Yemen are similar to male. Their epigyne resembles E. negevensis, differing in shorter "window" in anterior half, ending in mid length of epigyne, at the level of pockets, narrower spermathecae with bigger number of septa, longer channels.
Measurements (mm): Male. Length of cephalothorax 1.87; length of abdomen 1.75; length of 5 segments of leg I 3.62.
Distribution: Egypt (?-Khor Atta), Yemen: Aden. Israel: Arava Valley. Seasonal appearance: male - III.