Phylogenetic affinities of the ant genus Cheliomyrmex (Hymenoptera: Formicidae).

Abstract

Field observations of the rarely collected ant, Cheliomyrmex morosus (F. Smith), are recorded. The ant is hypogaeic with a majority of its burrows appearing in the upper 6 inches of the soil. Internal and external features of the abdomen considered to be of impor tance in understanding the phylogeny of this ant are discussed. Included are descriptions of portions of the gastral digestive system, the reproductive system, and the sting apparatus. Malpighian tubule counts in C. morosus and 6 other New World dorylines are compared.