The Ants of the Baltic Amber. 



41 



confined to the Old World tropics. The ocelli had already disappeared 

 in the workers of three of the Baltic species, and four of the species 

 are very closely related to the slender, black, recent forms of India, 

 Africa and Madagascar. 



Sima klehsi, sp. nov. 

 Worker (Fig. 10), Length 8,5 mm. 



Head somewhat longer than broad, elliptical, with rounded sides 

 and feebl}^ excised posterior border. Eyes flat, in the middle of the 



Fig. 10. Sima klehsi pp. nov. Worker, X 8. 



sides of the head. Ocelli present. Mandibles convex, 5-toothed, witli 

 their masticatory border broader than the base. Clypeus short, obtusely 

 bidentate. Antenn£E small; scapes reaching backward only to the 

 middle of the head ; first funicular joint as long as the two succeeding 

 joints together; joints 3 — 6 broader than long, remaining joints as 

 broad as long. Pro- and mesonotum somewhat broader than long, 

 flattened above; mesoepinotal constriction distinct. Epinotum longer 

 than broad, feebly rounded above and behind. Petiole longer tiian 

 broad, laterally compressed, distinctly pedunculate, with evenly rounded 

 node and concave lower surface. Postpetiole apparently longer than 

 broad, pedunculate, its convex upper surface rather suddenly declivous 



