Calyptomyrmex Emery

Calyptomyrmex Emery, 1887: 471 .

Type species. Calyptomyrmex beccarii Emery, 1887, by monotypy.

Diagnosis. Workers belonging to Calyptomyrmex may be separated from those of other myrmicine genera by the presence of distinct, elongate depressions (antennal scrobes) on the front of the head which contain the entire antennae when at rest and the conspicuous, broad, bilobed appendage (the clypeal fork) which projects over the rear section of the mandibles. The deep antennal scrobes and the unique configuration of the clypeus will separate these ants from all others in the region. For a more complete description see Bolton (1981).