OCR Text |
Show 1876.] REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. 579 An adult female resembled these last in the general colouring; but her legs were entirely without darker markings; the abdomen also is less spotted, and the lines and bands noticed on the male (except the irregular transverse one on the fore part) are scarcely traceable ; the sides are marked with oblique converging red-brown lines forming a vandyke pattern; and the underside is unicolorous. Four males (three adult and one immature), and one adult female, were found on low bushes near Cairo and in Upper Egypt, and appear to m e to be new to science. Fam. ULOBORIDES. , Gen. ULOBORUS (Walck.). ULOBORUS SIGNATUS, sp. n. Adult male, length 1^ line. The cephalothorax of this Spider is of a short or round oval form, the site of the fore central pair of eyes being rather prominent; it is uniformly though not very convex above, but, on the contrary, rather depressed and the hinder extremity truncated and higher than the fore extremity ; its colour is dark brown, with an indistinct and abbreviated yellowish bar on either side, leaving a broad central brown band and a marginal band on each side of the same colour ; these, however, all merge into one at the caput where the yellow bars cease. Clypeus none. The eyes are in two curved rows wide apart from each other; and the curves of both are directed forwards ; the eyes of the hinder row are equal in size, and as nearly as possible equidistant from each other; those of the fore central pair are rather larger than those of the hinder row, and separated hy about the same interval as those of that row from each other, each fore lateral being also nearly the same distance from the fore central eye on its side; the fore laterals are the smallest of the eight, and each is separated from the hind lateral on its side hy a larger interval than that which separates the fore and hind central eyes. The legs are very unequal in length and strength; their relative length is 1, 2, 4, 3, those of the first pair being considerably the longest and strongest; those of the first two pairs are of a dark yellowish- brown colour, the femora being the darkest, and marked obliquely near the middle on the upperside with a yellowish stripe; those of the third and fourth pairs are of a yellowish colour broadly annulated with brown : the tibiae of the first pair had the stumps, apparently, of spines ; but all the armature, of whatever nature, had been broken and rubbed off. The palpi are short, of a yellowish colour, marked obscurely with brown ; the cubital and radial joints are very short, the latter being somewhat gibbous or pointedly prominent on its upperside at the fore extremity ; the digital joint is rather large, and the palpal organs prominent but simple in structure, with, apparently, a fine red-brown spine coiled round them near the middle; this spine may |