DIAGNOSES OF SOME NEW INDIAN ARACHNID A. 747 



patella and tibia yellowish-grey below, and furnished with long red 

 bristles ; femur of 1st and 2nd leg with the anterior surface ornamented 

 with a large yellow patch which occupies nearly the basal half of its 

 length ; the rest of the surface black with metallic blue reflections ; 

 patella yellowish-brown, tibia coloured like femur ; underside of 3rd 

 and 4th legs a tolerably uniform 3'ellowish-brown, clothed like the 

 anterior legs with long greyish or reddish bristles ; lower side of 

 abdomen velvety-black. 



Length 32 mm., carapace 17. 



Locality. — Trivandrum in Travancore {II. Ferguson). 

 Genus Haploclastds, Sim. 

 Haploclastus nilgirinus, sp. n. 



At least differing from H. cervinus, Sim., according to the descrip- 

 tion, in being much larger, in having the 4th leg much shorter than the 

 1st and shorter even than the 2nd. 



Total length 52 mm., carapace 24, 1st leg 62, 4th 58. 



Locality. — Nilgiri Hills (Mahon Daly). 



H. cervinus from Kodaikanal has the following dimensions : — Total 

 length 30 mm., carapace 15, 1st leg 39^ 4th 38*8. 



Genus Thrigmop(EUS, gen. nov. 



Allied to the genus here identified as Haploclastus of Simon, but the 

 stridulating area on the mandible, consisting of a large semicircular 

 cluster of many-curved, thickened, but pointed, bristles ; on the maxilla 

 the aciculate bristles below the suture arranged in a curved vertical 

 series on a slightly elevated ridge near the middle of the segTiient' 

 Protarsi of 3rd and 4th legs adorned apically, with spines both above 

 and below. 



Type. — T. insignis. 



Thrigmopoeus insignis^ sp. n. 



9 . Colour blackish, clothed above with yellowish-brown hair and 

 below with velvety-black pubescence. Carapace longer than patella, 

 and tibia of 2nd leg and protarsus and tarsus of 4th equal to 

 patella and tibia of 4th ; fovea large, as wide as the ocular tubercle, 

 Z^^s of medium length, 2nd about tvvice-and-a-half times the length of 

 the carapace ; 1st leg longer than 4th. 



Total length 55 mm., carapace 27, 1st leg 76, 4th 73. 



Locality. — Kanara Ghats {Bombay Nat. Hist. Soc). 



