IXXia>UL'CXION. 



Fi''. ix. 



FiL'. xii. 



Fig. xiii. 



Fig. ix. — Abdomen JYiucf/fs ^ . 

 „ X.— Abdomen of ^ of the roiiprince. 

 „ xi. — Abdomen of § of the Dolichoclcrincp. 

 „ xii. — A, B. Abdomen of 5 of the Mi/nnccincp. 



C. Abdomen of ($ of the Poncriiitp. 



D. Abdomen of $ of the Camponotiixp. 

 „ xiii. — Abdomen of ^ of the CamponotincE. 



Ist segment a is always modified into a highly flexible pedicel. The 

 2nd segment h is, in the majority of the genera, unmodified and 

 forms part of the abdomen proper, but in the "^ of one section of 

 the Dorylina' and in all the Myrmecina' it is modified in a manner 

 similar to the 1st segment, and then forms part of the pedicel. 

 The abdomen proper is formed of the remaining segments, h-f, or 

 h-g in the J ; in the section of the Dorylina' mentioned above 

 and in the Myrmecina', c-f. The anal aperture marked z (fig. xii, 

 IB & D) is in the Camponotina' circular and ciliated with hairs, and 



