
No. 429.] "IHE FAMILY OF FORMICIDÆ. 725 
** Apart from the above, all the characters are very similar to those of Ecta- 
tomma, especially of the subgenus Gnamptogenys. Antenne 12-jointed. 
Eyes large, lateral. Frontal carine widely separated, short. Clypeus 
rounded behind. Promesonotal suture only slightly visible. Mesometa- 
notal suture very deep, constricted. Pedicel of the abdomen like that of 
Gnamptogenys. Middle and hind legs with but a single spur, which is 
pectinated. Tarsal claws bidentate. 
* This genus is undoubtedly very closely related to Ectatomma ; but the 
structure of the mandibles is so peculiar and recalls so forcibly the group 
of Mystrium and Myrmecia that I feel fully justified in establishing the 
genus." 
The type of the genus Emeryella is E. Schmitti Forel. 
W. M. WHEELER. 
