208 Transactions. — Zoology. 



surface the abdomen is brown, mottled with brown yellow ; pos- 

 terior side of spiracular plates whitish ; spinners of the same 

 colour as the legs. The whole body, except the cephalothorax, 

 is copiously furnished with dark hair. 



Cephalothorax as long as the patella + tibia of a leg of the 

 fourth pair ; about 1 mm. longer than broad at its broadest 

 part, and rather more than 1 mm. narrower at the fore-part of 

 the caput than at its broadest part ; truncated in front and 

 behind ; slightly rounded at the side ; pars cephalica high ; pars 

 thoracica low ; thoracic fovea deep, broad and rounded behind, 

 and narrower and somewhat angular in front ; lateral furrows 

 well-marked ; caput and thorax distinct. 



The eyes in two rows, the anterior row bent backwards, and 

 the posterior forwards, the latter longer than the former ; the 

 fore-centrals round, and the fore-laterals largish, round, and 

 posited somewhat obliquely, the centrals about as distant from 

 each other as from the laterals ; eyes of posterior row longish, 

 round, and posited obliquely, the centrals much smaller than the 

 laterals and almost contiguous to them, and about as distant 

 from the fore-centrals as these are from the fore-laterals ; the 

 hind-laterals nearer to the fore-laterals than these are to the 

 fore-centrals ; a few bristly hairs behind the ocular area, and 

 a tuft in front of the fore-centrals. 



Falces very long and strong, projecting 5 mm. beyond the 

 clypeus, strongly convex, almost glabrous on the outer side, and 

 abundantly furnished with bristly hairs on the inner side and in 

 front ; claw long and moderately strong ; groove with a large 

 number of teeth on each side, those on the inner side large, and 

 those on the outer side minute. 



Maxilla, strongly diverging, in shape resembling the exin- 

 guinal joints of the legs and not differing greatly in length 

 from them, the basal half furnished with short black spines, and 

 the fore-margin with a fringe of fine reddish hair. Lip trian- 

 gular in outline, about as broad as the base is long, convex, 

 separated from the sternum by a semicircular groove, and armed 

 in front with very short blunt spines. 



Sternum broadly elliptical, emarginated at the anterior and 

 somewhat pointed at the posterior extremity, the sides some- 

 what projecting opposite the 1st, 2nd, and 3rd pairs of legs, 

 and behind each projection there is a roundish bald dent. 



Abdomen broadly ovate, narrowest towards the base, 12 mm. 

 long and 9 mm. broad at its broadest part, and projecting over 

 the thorax. 



Tlie spinners of each fore-pair near each other ; the outer 

 short and truncated, the inner nearly as long again as the outer 

 and rounded towards the extremity ; the posterior pair very long, 

 about 6 mm. 



