178 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1892. 



slinging trot, until a likely hole, crevice, or ants' nest is met with, 

 when it pours in, until enough having entered, the remainder of 

 the column goes on, in search of another hole. Moreover at times, 

 when on the march, the column at a certain point in its length, turns 

 off at an angle, striking out a new Kne, and, though this manoeuvre 

 is often repeated, so far as I have seen, it never happens a few files 

 from the head of the column, but always so that each column shall 

 be strong enough to cope with any ant community likely to be 

 met with. Indeed, this manoeuvre seems often to be of the 

 nature of a flanking movement. I have seen a strong column, 

 marching on a white ant heap, detach, in this way, columns right 

 and left, and the several detached colimins enter the heap from 

 different points of the compass. The notion irresistibly forced 

 on any one, watching these manoeuvres, is that they are either the 

 result of preconcerted arrangement, or are carried out by word of 

 command. 



MYEMICID^. 



Gen. 29. Catatjlacus (Smith). 



The most striking characteristics of this genus are ' flatness ' and 

 ' raggedness ' ; every ' edge ' is serrate or crenelate, and every 

 corner (usually a curve in other ants) is produced into a ' tooth ' or 

 spine. 



120. Cat. latus (Forel MS.). 



Poena Dists (14-6-90, §, $, $ ). 



Thana Dists F. Gfleadow (a variety) . 



I found a nest of this species in the hollow bough of a tree ; on 

 opening the nest I found the tunnel full of larvse and pupae, and 

 lined with the pupae of some kind of Lycmia {?) ; I tried hard, but 

 failed to rear the butterfly, the pupte apparently requiring the moist 

 atmosphere of the ants' nest, and possibly the tender care of the ants. 

 I have always found the nest of this species in hollows in growing 

 trees. 



121. Cat. granulatus (Smith). 



Tounghoo, Burma E.Y.Watson. 



122. Cat. taprobance (Smith). 



Colombo Gr. A. J. Eotlmcv. 



