I5TBODUOTJON. 



.Fig. ix. 



Fig. xiii 



Fig. ix. Abdomen JKnictus > . 

 x. Abdomen of $ of the Ponerince. 

 xi. Abdomen of of the Dolicliodmna. 

 xii. A, B. Abdomen of 9 of the Myrmccina>. 



C. Abdomen of c? ot the Ponerinee. 



D. Abdomen of $ of the Camponotiiice. 

 ,, xiii. Abdomen of of the Camponotince. 



1st segment a is always modified into a highly flexible pedicel. The 

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

 forms part of the abdomen proper, but in the $ of one section of 

 the Dorylince and in all the Myrmecincp 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, b-f, or 

 b-g in the rf ; in the section of the Dorylina- mentioned above 

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

 B & D) is in the Camponotince circular and ciliated with hairs, and 



