Page:Supplement to harvesting ants and trap-door spiders (IA supplementtoharv00mogg).pdf/174

 The maxillæ are strong, of normal form, but very convex on their outer surface.

The small tuberculous teeth noticed at the base on the inner side of the maxillæ of all the other species I have examined, were visible (though with difficulty) in this species also.

The labium is broader than it is high, convex on its face, and rounded at the apex; it is (as also are the maxillæ and sternum) of the same colour as the legs, and clothed with numerous strong bristly hairs.

The abdomen is short-oval, and strongly convex above; it is of a dull clay-coloured brown tinged with chocolate, and along the centre of its upper side is a series of six strong angular bars or chevrons of a dark chocolate-brown colour, and pretty distinctly defined, though, when examined closely, broken in parts.

The intervening spaces between the angular bars and the sides have a few irregular markings of a similar colour; and they are connected by a longitudinal central line of the same hue running through their apices.

The abdomen is very sparingly clothed with hairs and fine bristles; the superior pair of spinners are strong; those of the inferior pair very small and short.

Examples of this fine and very distinct spider were found at Bordeaux in simple unbranched tubes, covered with a wafer-lid, running down very deep into the earth, in some cases as much as fifteen inches into an exceedingly hard soil, making it a work of great labour and care to get them out without injury.

This species can scarcely be confused with any other yet known; its short robust form, short legs,