The Ants of the Baltic Amber. 
47 
as the enlarged terminal joint. Mesoepinotal constriction distinct. 
Epinotum armed with two small acute and distinctly recurved teeth. 
Petiole large, longer than high, its ventral portion convex in profile 
and laterally compressed, its node with long, concave anterior and 
shorter, nearly straight posterior declivity. Postpetiole small, subglobular 
constricted posteriorly. Gaster large, elliptical, with small, concealed 
terminal segments, like those of E. longi. Legs long, with clavate 
femora and tibise. 
Mandibles with oblique, dentate blades. Eyes vestigial. Antennae 
11-jointed; excluding the mandibles. First funicular joint fully as 
long as the three succeeding joints together; joints 2 — 8 narrow, as 
long as broad; club 2-jointed, its basal joint about one third as long 
Fig. 16. Erebomyrma antiqua Mayr, a) Worker, B 19926; b) Worker, B243; 
c) Female, B437; d) Male K 1029. 
