Genus MYRMECOCYSTUS ^HNS.

Myrmecocystus ^HNS, Wesm. Bull. Acad. Roy. de Brux. v. (1838) p. 766.

Lucas, Bull. Ent. pl. 54; Ann. Soc. Ent. Fr. (1855).

" The first abdominal segment of one node; the mandibles triangular and much toothed; abdomen swollen at times like a balloon, and then perfectly transparent. In Mexico called hor- migas micleras or mochileras, i. e. honey-ants or pouched ants. their abdomen containing a sufficiently agreeable honey."