OCR Text |
Show 594 REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. [June 20, examples as bleached or washed-out specimens of the Palestine species. I can, however, see no difference between them in any structural points. PHILODROMUS MEDIUS. Philodromus medius, Cambr. Spid. of Palest. & Syria, P. Z. S. 1872, p. 311. An adult male, with females, both adult and immature, were found in Upper Egypt, upon the lower boughs of the sont acacia. PHILODROMUS CINEREUS, sp. n. Adult female, length 2 lines. The cephalothorax is pale yellow, the sides (except a narrow marginal white line) yellowish brown, divided longitudinally by a broken curved line of three indistinct whitish elongate spots, and marked along the course of the normal indentations with converging black lines, among which are a few other small spots of the same colour ; the upper part of the caput is dull yellowish brown, margined strongly behind with white, on the posterior edge of which are two or three deep-black-brown spots; the clypeus is white, and its height is equal to half that of the facial space ; the ocular area is also white. The eyes are in the usual position, but are rather more unequal in size than usual, those of the fore central pair being decidedly the largest and considerably further from each other than each is from the fore lateral eye on its side, the interval between each and the latter being rather less than the latter's diameter; the four central eyes form a square whose hinder side is longer than the rest. The legs are rather long and slender, their relative length is 2, 4, 3, 1 ; they are pale yellow in colour, annulated and speckled more or less with blackish brown, and furnished sparingly with hairs and a few very fine inconspicuous spines. The palpi are moderately long, slender, and similar to the legs in colour. The falces are of moderate length, but slender, and of a brownish-yellow colour. The maxillce and labium are normal in form, and similar to the falces in colour, but tipped with a paler hue. The sternum is yellow, marbled with white. The abdomen is rather large, broader behind than before ; it is of an ashy grey colour, thickly suffused with darker grey and black specks on the upperside; the normal maiking along the centre of the fore half is of a blackish grey colour, well defined by a black marginal line, truncate at its hinder extremity, and emitting an indistinct black oblique line from either side of its broadest part, which is slightly angular ; the hinder part is marked by some obscure whitish maikings and spots disposed in opposed oblique broken lines on either side ; the genital aperture is characteristic, and of a somewhat oval or kidney-shape, divided by a narrow longitudinal septum ; a little way underneath, in front of the spinners, is a small but very |