Genus 4. PARAPONERA ^HNS. Pl. VII. figs. 7, 8, 9.

Head subquadrate, with the angles rounded, slightly narrowed posteriorly; the eyes circular and very prominent, situated a little before the middle, at the sides of the head; the antennae inserted forward on the face in deep cavities close to the base of the clypeus; mandibles large, triangular, dentate on their inner edge; the labial palpi 3-jointed, the maxillary palpi 5-jointed; the node of the abdomen incrassate; the abdomen with a deep strangulation between the first and second segments.

This insect, which is now separated from the genus Ponera ^HNS, will not range in any of the subdivisions here described; in the prominence of the eyes it agrees with the genus Ectatomma ^HNS, but the labial and maxillary palpi are composed of a different number of joints.