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Show 610 REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. [June 20, Koch (Marpissa brevipes, Koch, Salticus obscurus, Bl.), which closely resembles in form, size, colour, and markings; and it may be distinguished bv the legs of the first pair being like the rest but slightly striped with brown; whereas in B. obscurus, they are almost wholly (at least the femoral, genual, and tibial joints) deep chocolate-brown ; the humeral and cubital joints also of the palpi are of the same hue, whereas in the present Spider the palpi have scarcely any dark markings. Although these differences appear at first sight but slAht ones by which to distinguish the species, I feel convinced that they will be found to be constant; I have examined numerous examples of the European form, and find no variation whatever in the markings of the legs and palpi; and I should be confident that some day the adult male and other examples of the female will further prove their distinctness from S. obscurus. A single example only of the adult female was found in Upper Egypt. Gen. ATTUS, Sim. (Salticus, Latr. ad partem). ATTUS DELECTUS. (Plate LX. fig. 88.) Attus delectus, Cambr. Spid. Pal. & Syr., P. Z. S. 1872, p. 326. Adults of both sexes of this pretty and distinctly marked Spider were found near Alexandria. ATTUS MOUFFETTII. Salticus mouffettii, Sav. et Aud. Egypte, p. 171, pl- vii. fig. 17. An adult female of this well marked Spider was found near Alexandria. ATTUS STAINTONII. Salticus staintonii, Cambr. Spid. Pal. & Syr., P. Z. S. 1872, p. 331, pl. xiv. fig. 20. Salticus congener, Cambr. loc. cit. p. 332. Adults of both sexes of this exceedingly distinct Spider were found in Upper Egypt, and are undoubtedly identical with those described I. c. supra. I have, moreover, now no hesitation in determining S. congener (I. c. supra) to be the female of S. (Attus) staintonii, although differing from it so considerably in colour and markings. ATTUS SPINIGER. (Plate LX. fig. 103.) Salticus spiniger, Cambr. Spid. Pal. & Syr., P. Z. S. 1872, p. 339. Both sexes, adult as well as immature, were found on the trunks of palm-trees at various places in Egypt, between Cairo and Assouan. The very long, circularly coiled, filiform spine, connected with the palpal organs of the male, forms a very striking and distinguishing character, and renders the present Spider an easy one to be determined. ATTUS PAYKULLH. Salticus pagkullii, Sav. et Aud. Egypte, p. 172, pl. vii. fig. 22. |
