1896.] AND LITTLE- KNOWN SriDBEB. 1007 



than, the radial and cubital together, enlarging or clavate at the 

 fore extremity, which ends with a small untoothed claw. 



Falces short, moderately strong, straight, subconical. 



MaxillcB rather long, straight ; broadest, and rather roundly 

 truncated at their extremity, and obliquely on the inner corners. 



Labium broader than long ; apex rounded. ■ 



Sternum longer than broad, its edges very strongly and 

 distinctly emarginate, with prominent angular chitinous points 

 running (when looked at from below) beneath the margin proper, 

 to and between the bases of the coxa) of the third and fourth pairs 

 of legs ; a very narrow stripe, also of a similar chitinous kind, 

 runs backwards between the posterior coxse from the hinder point 

 .. of the sternum. 



Abdomen connected with the cephalothorax by a long cylindrical 

 pedicle running into a strong circular socket, which forms part of 

 a large coriaceous plate including the spiracular opening and 

 enclosing the covering of the genital aperture. The abdomen is 

 of an elongate or oblong-oval form, broadest and well rounded 

 behind, and shghtly constricted transversely at the middle ; 

 spinners very small, compact, and enclosed in a round sheath-like 

 socket. 



Abtius dbcollatus, sp. n. (Plate LII. fig. 1.) 



Adult female length 4 lines. 



Cephalotliorax black, with a short white pubescence on the sides 

 of the thorax, and the greater part of the thorax bright yellowisli 

 red, leaving a broad, irregular, lateral black margin. The surface 

 is covered thickly M'ith small tuberculous granulosities. 



Legs orange-yellow, the femora (excepting the anterior extre- 

 mities, and a longish patch on the upperside of those of the fourth 

 pair, which are reddish) being black, the genuse and tibioe of the 

 fourth pair being also suffused with blackish. The femora are 

 granulose. The spines beneath the tibise and metatarsi of the 

 first and second pairs are in a longitudinal series of 3 pairs on the 

 tibice and 2 pairs on the metatarsi. 



Palpi yellow ; the humeral joints suffused with blackish. 



Falces similar in colour to the cephalothorax. 



MaxillcB and labium deep brown, tipped with a paler hue. 



Sternum dull orange-yellow. 



Abdomen and connecting pedicle black. On either side of the 

 fore extremity of the upperside is a short, curved, orange-red 

 stripe, the convexity of the curves directed outwards ; at the 

 posterior extremity of each stripe is a patch of white pubescence, 

 with a similar transverse stripe of ])ubescence across the middle 

 and down the sides, and several small spots of the same behind it, 

 in a central row to the spinners, just above wjiich is a tuft of 

 longish white hairs ; -the fore extremity also of the abdomen is 

 clothed thinly with white pubescence, and there is a lateral 

 slightly oblique stripe of the same halfway between the con- 



Pboo. Zool. Soc— 1896, No. LXV. 65 



