202 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY. LS02. 



which mimics S. nigra, though it is not so common as the corresponding 

 under-study of S. rufonigra, 

 212. 8. compressa (Roger). 



Poena Districts. 



Colombo; Calcutta G-. A. J. Rothney. 



Orissa Jas. Taylor. 



This is far the smallest of the three species ; indeed it is barely half the 

 isize of a normal 8. nigra. It is rare in the Dekhan, and only found on 

 the Ghats. The only nest I have found was in a hole in a living tree. 

 The community contained about 40 ^ , and a fourth as many apterous $ . 



INDEX TO PLATES. 



PLATE C. 



Ala-opone oherthuri (Mayr) 



do. 



do. 

 Meranoplus hicolor (Gruerin) 



do. 



do. 



do. 

 Gataulacus latus (Forel MS.) 



do. 



4 

 5 

 6 

 7 

 8 

 9 

 10 



u 



12 

 13 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 



do. 

 do. 



do. 

 do. 

 do. 



Aphcenogaster heccarii (Emery) 

 do. 

 do. 



PLATE D, 



Pheidok latinoda (Roger) 

 do. 

 do. 

 do. 

 do. 

 Cremastogaster rahula (Forel MS.) 

 do. 

 do. 

 Sima nigra (Jerdon) 

 do. 



X 9 



X 9 



X 9 (head). 



X 9 



X 9 



X 18 (head). 



X 18 (antenna). 

 5 X 9 



do. X 9 (profile), 

 do. X 18 (antenna). 

 § X 9 

 do. X 9 

 do. X 9 (antenna). 



5 X 9 



do. X 9 



do. X 18 (antenna). 



a X 9 



do. X 18 (antenna). 



^ X 9 



do. X 9 (profile). 



do. X 18 (antenna). 



$ X 9 



do. X 18 (antenna).- 



