Genus 8. ECITON ^HNS.

Formica ^HNS, pt., Fabr. Ent. Syst. ii. 364 (1793).

Myrmecia ^HNS, pt., Fabr. Syst. Piez. 423 (1804).

Eciton ^HNS, Latr. Hist. Nat. Crust, et Ins. iv. 130 (1804).

Ancylognathus ^HNS, Lund, Ann. Sc. Nat. xxii. (1831).

Camptognatha ^HNS, Westw. Griff. An. Kingd. xv. 5. 16 (1832).

The maxillary palpi 2-jointed, the labial palpi 3-jointed. The societies comprise males, females and workers, the latter consisting of two kinds of individuals, the larger kind in some species having the mandibles elongate, curved, somewhat sickleshaped, but not flattened, the head very large; the large and small workers with very minute eyes, in some species obsolete. Thorax unarmed. Abdomen small and ovate, the petiole with two nodes; the workers armed with a sting.-Males and females not known. Pl. VI.