270 Transactions. — Zooiogjj. 



dark brown at die sides, dusky-yellow in tlie middle, and here 

 covered with a very dense pubescence. The dorsal surface is 

 much less hairy, but more copiously furnished with bristles. 

 The dark portions of the abdominal surface are very finely 

 mottled with dull-yellow. 



Ccvhalotliorax about Imni. longer than broad at the 

 broadest part, and hei-e less than lunn. broader than at the 

 fore-part of the caput ; pars cephalica sloping forw^ard, the 

 back of the cephalothorax thus forming a continuous cm^ve ; 

 normal indentations moderately distinct ; sides slightly rounded ; 

 back and fore-part of caput very sparsely furnished with coarse 

 hairs. 



Ejics on small black eminences, the centrals of the middle 

 row very minute, the rest not differing greatly in size, and 

 round, or almost so ; those of the front row nearer to the 

 laterals of the middle row than these latter are to the eyes of 

 the posterior row, but more distant from each other than those 

 of the posterior row are from each other ; the centrals of the 

 middle row slightly nearer each other than to the front eyes, 

 and nearer to these than to the laterals of their own row ; the 

 curve of the middle row directed forw'ard. Height of clypeus 

 less than the space between a central and a lateral of the 

 middle row. 



Falces almost vertical, inclined forwards rather than back- 

 wards, at the base projecting beyond the plane of the clypeus ; 

 glossy and finely rugulose, furnished with hairs at the sides 

 and extremities, and with a dense fringe at the anterior side 

 of the groove, the latter with 4 teeth on the posterior side, the 

 one nearest the fang the largest, and the basal one very 

 minute, and three on the anterior side, the middle one of 

 which is large and the other small, the basal tooth being 

 much more distant from it than the other. 



JlaxiUcs convex, in front of the palpal junction oblong in 

 outline, inclined to the labium, in front slightly rounded on 

 the outside and obliquely truncated on the inside, and here fur- 

 nished with a dense dark-coloured fringe. 



Labium convex, widest above the basal constriction, nar- 

 rowest in front and here truncated, more than half as long as 

 the maxillge. 



Stern urn slightly convex, oblong-cordate, truncated in front 

 and strongly pointed posteriorly, somewhat impressed opposite 

 the legs, very glossy and very sparsely furnished with coarsish 

 black hairs. 



Abdomen oblong-ovate, convex, at its widest part wider 

 than the cephalothorax ; inferior spinners by far the largest, 

 in front of them a tuft of hair that, seen with the naked 

 eye or with a glass of very low power, looks like a small 

 mammilla. 



