Abstract
ABSTRACT Discriminate analysis and canonical correlation analysis were used to separate the Aphaenogaster phalangium species complex into 5 species of tropical New World ants: A. araneoides Emery, A. brevicollis Forel, A. inermis Forel (=Aphaenogaster araneoides var. nitidiventris new synonymy), Aphaenogaster (Deromyrma) araneoides var. canalis new synonymy), A. mexicana (Pergande) and A. phalangium Emery. This complex is easily recognized as a long necked group of Aphaenogaster found primarily in tropical forests. Aphaenogaster araneoides, distributed from El Salvador to Panama, can be recognized by the relatively elongated neck, lack of erect hairs on the dorsum of the posterior femur, and in that the sculpture of the head is similar to that of the dorsum of the first tergum of the gaster. Aphaenogaster brevicollis, known only from northern Panama, is a robust, relatively large species with a short neck. Aphaenogaster inermis is a smaller species found from Nicaragua south into Colombia, with numerous s...
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