| OCR Text |
Show 106 REV. O. P. CAMBRIDGE ON THE GENUS IDIOPS. [Feb. 10, of the first pair have two strong, black, tubercular, corneous prominences near their extremities on the inner side ; the hinder one of these is by far the longest and strongest; both are furnished with bristles, and at their extremities are some short, strong, blunt, black spines. Each tarsus ends with three claws ; the two upper ones are conspicuous, curved, and pectinated; the lower one is small, sharply bent downwards, and not easy to be seen. Palpi long, strong, similar to the legs in colour, and remarkable in their structure and armature; the cubital joints are short, and larger at their fore than at their hinder extremities; on their outer sides, rather underneath, is a sort of longitudinal irregular furrow or suture of a pale colour, with a slight prominence near the middle ; the radial joints are more than double the length of the cubitals, curved, very strong, and tumid, especially towards their hinder extremities ; about the middle of their outer sides is a strong, prominent, tubercular projection, obtuse at its extremity, which (together with the underside) is furnished with very short, strong, blunt, black spines; about halfway between this projection and the extremity of the joint is another, prominent, slender, and cylindrical, of a paler colour than the other, and with a few, very short, tuberculiform, black spines near its extremity; the digital joiut is rather shorter than the cubital, of an oblong form, very slightly concave beneath, and with its anterior extremity strongly emarginate, or rather produced on either side, mostly so on the inner one. The palpi are furnished with hairs, bristles, and spines; a group of long and strong bristly hairs occupies the underside of the radial joint near its hinder extremity ; and the fore extremity of the digital joint is armed with some strong black spines. The palpal organs consist of a long, strong, and tortuous corneous process of a red-brown colour, mixed with whitish; this process is somewhat bulbiform near its base, and terminates with a small, bluntish continuation; in a state of rest this organ extends backwards nearly to the hinder extremity of the radial joint. Falces moderately strong, prominent, of a red-brown colour, hairy, and armed with a small group of short strong spines near their extremities on the upperside. Maxillee strong, cylindrical, divergent, and having the palpi issuing from their extremities; they are thickly fringed on their inner sides with reddish-yellow hairs. Labium very small, short, rather broader at its base than at its apex, which is rounded. Sternum large, oblong-oval, much narrower before than behind; this part (with the labium and maxillae) is similar to the legs in colour ; the sternum is also furnished with strong, prominent, bristly hairs, and four smooth, oval, reddish patches or spots form a curved transverse row across its centre, the curve directed backwards. Abdomen broad-oval, narrower before than behind; it projects over the base of the cephalothorax, is tolerably convex above, round, and abruptly terminated at its hinder extremity ; it is of a deep dusky-brown colour, its sides and upper part strongly rugulose, the |
