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Show 1876.] REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. 605 L. K., pretty certain. Adults of both sexes were frequent both in the neighbourhood of Cairo and Alexandria* LYCOSA INJUCUNDA, sp. n. (Plate LX. fig. 15.) Adult male, length rather over 3 lines. This Spider is very closely allied to L. fidelis, Cambr., and is found in the same localities ; it may, however* be at once distinguished by the generally duller and less distinct colours and markings in both sexes, especially in the adult males, whose cephalothorax has distinct, though irregularly edged and slightly interrupted, lateral yellow bands, leaving a broken marginal brown band on each side * the central longitudinal yellow band is also quite distinct, strongly radiated at the thoracic junction, and much constricted at the occiput, whereas in L. fidelis the central band is scarcely traceable and the lateral ones quite obsolete. The eyes of the hinder row are further apart than in L. fidelis ; in other respects, except being generally larger, the eyes are very similar in both species. The legs are dull yellow, annulated with brown, but not nearly so distinctly as in L. fidelis. The palpi of the adult male differ remarkably in the two species, those of L. fidelis having the humeral and digital joints black, and the cubital and radial joints clear yellow, the fore part of the latter, as also the base of the digital joints, clothed with white hairs ; the cubital and radial joints are also rather short, and of equal length ; while in the present Spider the humeral joint is dull yellow, like the cubital and radial, these two latter being longer and differing in their relative length, the radial being distinctly longer than the cubital, and (as well as the digital, which is of a dark brown colour, and terminates with two strong curved claws) entirely destitute of the white hairs which in L. fidelis form so striking a contrast to the black digital joint. The palpal organs of the present species are also of much less complex structure than those of L. fidelis: no description would avail to make their structure intelligible; this can only be done by good figures on a large scale ; one character, however, of those of the present Spider is unusual, if not unique-the large basal corneous lobe or process being clothed with hairs. The underside of L. fidelis is much darker than in the present Spider; this is especially noticeable in the sternum, which in the former is deep brownish black, and in the latter pale dull yellowish, with sometimes two longitudinal dusky brownish curved stripes. Adult and immature examples of each sex were found both near Cairo and Alexandria. The females of the present Spider may be distinguished from those of L. fidelis by the much smaller and differently formed genital aperture. LYCOSA INIQUA, sp. n. Adult female, length nearly 4 lines. This Spider bears considerable general resemblance to L. injucunda, but may be separated at a glance by the large size of the eyes of the PROC. ZOOL. Soc-1876, No. XL. 40 |
