1915.| F. H. Gravety: Indian Mygalomorph Spiders. Pg 5 
Colour.—Brown, much paler than in the male and _ not 
olivaceous. 
Structure.—-The carapace differs from that of the male in hav- 
ing the fovea transversely linear, and the anterior median eyes 
smaller than the anterior laterals. Sterynum and labium as in 
male; posterior sigilla often obscure. 
The tibia of the palp is armed with two apical spines as in 
Plesiophrictus satarensts. ‘The tibia of the first Jeg has one or two 
apical spines and no apophysis; otherwise the armature of the 
legs resembles that of the male, except that the metatarsus of the 
second leg usually has one instead of three spines. The meta- 
tarsal scopulae are denser and more extensive than in the male, 
those of the first legs extending practically to the base of the joint. 
The first tarsal scopula is often somewhat indistinctly divided by 
a row of long hairs, rather than by a definite band of spines; 
the second is divided by a line of spines, the third and fourth 
also by bands of spines. 
Genus Plesiophrictus, Poc. 
Incl. Heterophrictus, Poc. 
This genus appears to have given rise to both the other 
genera of Indian Ischnocoleae, and through one of them to the 
Thrigmopoeeae also. It is much larger than any of the four 
derived genera; and the following description, based mainly on 
the species by which it is represented in our collection, may serve 
as a standard by comparison with which these genera can be more 
briefly described. In Plestophrictus satarensis, of which alone the 
male is known to me, the characters mentioned are found in both 
sexes unless otherwise stated. 
The ocular area is rectangular, nearly or quite three times as 
broad as long. The eyes of the anterior line, which is lightly pro- 
curved, are about equally spaced, somewhat variable in relative 
size but together larger than the eyes of the posterior line together. 
The median eyes of the posterior line, which is very lightly re- 
curved, are smaller than the posterior laterals, with which they are 
practically contiguous being widely separated from one another. 
The anterior medians are circular, the rest are more or less oval. 
The position of the posterior sigilla of the sternum varies. 
In small species they are (? always) marginal; in larger ones they 
tend to be separated from the margin by a distance not (? ever) 
exceeding their own width. 
The Jabium is about as long as broad, with slightly concave 
anterior margin, immediately behind which it is armed with a 
transverse band of somewhat sparsely scattered denticles, rather 
coarse in the female but sometimes very fine in the male. Similar 
denticles occupy a roughly equilaterally triangular patch on the 
lower surface of the coxa of the palp, a patch of which one side is 
formed by the anterior half of the basal margin. 
