Genus 1. MYRMICA ^HNS.

Myrmica ^HNS, Latr. Gen. Crust, et Ins. iv. 131.

The number of joints varying in the different divisions into which the genus is subdivided, the maxillary palpi from 6 to 1, the labial palpi from 4 to 2. Ocelli obsolete in the workers. Females and workers armed with stings; the petiole of the abdomen with two nodes. Pupae usually naked, not enclosed in cocoons, but casting off a thin pellicle on arriving at the perfect condition or imago.