Page:Supplement to harvesting ants and trap-door spiders (IA supplementtoharv00mogg).pdf/172

 The cephalothorax is oval, truncate, and about equally broad at each end; the ordinary grooves and indentations are strong; besides the groove which indicates its union with the thorax, the caput has an indented or pinched-in appearance towards its hinder part on each side. Except that this was present in all the examples examined (ten) it might have been taken to be accidental.

The colour of the cephalothorax is dark brown tinged with yellow, darkest on the sides of the caput, which is divided longitudinally by a narrow, dull, orange-yellow line, and lightest on the margins towards the hinder part; the thoracic fovea is curved, but more deeply indented and the indentation is wider at each end than in other species, the ends being a little turned back: there is a single longitudinal row of long erect bristles along the central line of the caput, and a few more on the lower margin of the clypeus.

The eyes form a narrower oblong area than usual, owing chiefly to their small size and to those of each lateral pair being almost contiguous to each other, separated only by an interval equal to that which divides each hind-lateral from the hind-central nearest to it. The hind-centrals are smallest of the eight, and vary in form, being round, semilunar, or roughly wedge-shaped, differing at times in the same example. The eye eminence is less elevated than in most species, and this brings the fore-centrals nearer to the straight line of the fore-laterals; these last are the largest of the eight. The height of the clypeus exceeds half that of the facial space.

The legs are short and strong; their relative length