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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 these descriptions and drawings are kindly requested to acknowledge that in their publications. Attention: the International Code for Zoological Nomenclature does not recognize taxonomic names unles description is printed on paper.

Mogrus sinaicus Proszynski, 2000

  • See Drawings
  • Synonym: Mogrus sp. 1 Proszynski, 1989: 42, Figs. 23, 26, 29-31 Material: Holotype female Egypt: Sinai - W. Nasib, 28. V. 72 coll. G. Tsabar; Paratype 1 female - Mogrus sp. 1, Saudi Arabia, Khasm Khafs, 6. IV. 1980. W. Buttiker, NHM-Basel.

    Remarks. Conspecificity of Saudi Arabian and Sinaian specimens tentative, based on similarities in spermatheca and some resemblance in color pattern, assuming that they have changed differently in both specimens.

    Diagnosis. Epigyne closely resembling M. fulvovittatus, from which differs by spermatheca folded only at its distal, posterior end, and prominent accessory gland at the anterior end. Median abdominal streak white contoured.

    Female (holotype)

    Cephalothorax brown with dense adpressed whitish setae, posterior and lateral borders of eye field more whitish; getting lighter ventrally, lower sides light yellow; light brownish median thoracal streak ending at the posterior border of the eye field. Abdomen: white with darker median serrated streak, not reaching the anterior end, now light brownish yellow, on white background without any contour; edges of dorsal surface marked by a line of brown spots; sides darker, greyish white. Frontal aspect: eyes I surrounded with white setae, clypeus covered very den~sely with long adpressed white setae, some of them overhanging black~ish brown chelicerae; pedipalps and legs I yellow. Legs: yellow with femora lighter, spines darker. Ventral aspect: light yellow to whi~tish.

    Epigyne weakly sclerotized, without distinct furrows with sclerotized edges, charaterized by pattern of pigmented areas and shadows of internal structures in a form of a pair of dark parallel lines, bent and closer spaced in the posterior half of epigyne, corresponds with various part of internal structures, but of little relation to their real shape. Openings in a form of a pair of small oval dark spots in anterior half of epigyne (Fig. 540), in studied specimens plugged by waxy stoppers, falling out after maceration in a KOH solution. The internal structures consist of membraneous and almost transparent copulatory channels, usu~ally very broad, often balloon shaped, with a small, bent and poorly visible channel on their median surface, passing into very small scle~rotized spermathecae; all these details apparently similar in several species of this group I have seen. The specific differences are minute terminal parts of spermatheca, especially position and shape of accessory gland openings.

    Measurements (mm): Female. Length of cephalothorax 3.25; length of abdomen 4.00.

    Distribution: Egypt: Sinai - W. Nasib; Saudi Arabia - Khasm Khafs. Seasonal appearance: female - V.

    Copyright © for the page by J. Proszynski, 2000.