Page:Supplement to harvesting ants and trap-door spiders (IA supplementtoharv00mogg).pdf/136

 fore centrals from each other, and each of them from the fore lateral on its side, are as nearly as possible equal, though very slightly, if at all, less than that which separates each of them from the hind central on its side: the interval which separates the fore laterals is double the length of the longest diameter of one of them.

The legs are short and very strong; they are like the cephalothorax in colour, but paler underneath the femora; this joint in the third pair is proportionally much stronger than in the other legs; all are furnished with hairs, bristles, and spines, a group of erect bristles among the rest occupies the fore part of the upper side of the metatarsi of the first and second pairs; strong spines of different lengths are thickly placed beneath and on the lower part of the sides of the tibiæ tarsi and metatarsi of the first and second pairs. On the tarsi and metatarsi of the third and fourth pairs similar spines are distributed more uniformly over the whole surface of the joints, and on the genual joint of the 3rd pair there is one short strong spine near its extremity on the outer side, those on the tibiæ both of the third and fourth pairs being confined to a few on the outer side, and towards the lower side only. Each tarsus terminates with three claws, of which the two superior ones have a single strong tooth towards the base on the lower side.

The palpi are rather long, strong, and similar in colour to the legs. They are furnished with hairs, bristles, and spines; of the latter the radial and digital joints have some short and strong ones, pretty thickly grouped along both their outer and inner