Page:Supplement to harvesting ants and trap-door spiders (IA supplementtoharv00mogg).pdf/129

 two distinct parts; the curve of this indentation is directed forwards. The normal thoracic indentations are well marked, but not very strong; the surface of the thorax, though shining, appeared under a lens to be covered with fine rugulosities. Its colour is yellow-brown; a large triangular patch on either side of the caput being tinged with orange, and the rest suffused with dark brown. The caput is of a dark reddish yellow-brown, showing (in spirit of wine) two longitudinal bars, or strong lines, of a clearer orange yellow-brown colour; its surface is glossy, though, under a lens, the sides of the fore part are very finely striated or rugulose. These lines begin behind the extremities of the hinder row of eyes, and gradually converge to a point at the thoracic junction; the ocular region and central longitudinal line of the fore-segment of the caput have some long and very prominent black bristles. When alive, the cephalothorax appears to have been suffused with a purplish hue, corresponding to that of the abdomen and other parts.

The eyes form a rectangular figure, whose fore side is a little shorter than the hinder one, and whose transverse, or longest, diameter is as nearly as possible double the length of its shortest one; the eyes of the central or fore-central pair are small, and separated by a diameter's distance from each other. The hind laterals are the smallest of the eight, and each is almost contiguous to the hind-central nearest to it, this latter being of a sub-triangular form, and separated from the fore-central on its side by an interval equal to that which divides the two fore-centrals, but less than that which separates each fore-central from the fore-lateral on its side. Looked at as in two