78 
Psyche 
[June 
spite the heavy sculpturing of the body. Epinotum with 
broadly rounded basal face passing abruptly into a deeply 
concave declivity which partially accommodates the node- 
like petiole. The declivity is bounded laterally by high, sharp, 
narrow ridges, each ridge having a very small, blunt epino- 
tal spine, that almost blends with the general sculpture. 
Petiole subglobose or nodiform, narrower in front, expand- 
ing gradually behind, but sharply constricted where it joins 
the postpetiole or first gastric segment ; convex dorsally and 
concave ventrally, provided with a long, flat, anteriorly 
Text-fig. 1. Stictoponera posteropsis, profile. 
projecting, ventral tooth. Postpetiole broad, globose, its 
ventral surface armed with a long, narrow keel which ex- 
pands into an open, lip-like structure at the anterior mar- 
gin and directly beneath the petiole. Remainder of gaster 
smaller than the postpetiole, and projecting downward and 
forward, and supplied with a well developed sting. 
Wings hyaline, straw-colored, extending beyond the tip 
of the gaster. One cubital cell, one discal cell, one large and 
one very small submarginal cell, is each present in the 
fore wing. 
Head, dorsal aspect of mandibles, thorax, petiole, post- 
