The Ants of the Baltic Amber. 



81 



Fig. 35. Dolichoderus ( Hypodinea) 

 elegans sp. nov. Worker, B 14126. 



of the head; the three basal funicular joints each about 3 times as 

 long as broad, remaining joints somewhat shorter. Thorax long and 

 narrow, pro- and mesonotum in profile very feebly convex above, 

 the humeri rounded and sloping, mesoepinotal constriction long and 

 moderately deep, bearing the prominent, approximated metathoracic 

 spiracles at the middle of its 

 dorsal concavity. Epinotum about 

 half as long as the combined 

 pro- and mesothorax, with sub- 

 equal base and declivity, the 

 former in profile rising rather 

 suddenly and at first convexly 

 and then with a flat surface to 

 a transverse ridge which sepa- 

 rates it from the declivity. 

 The latter slopes back obliquely 



and is only slightly concave. Petiolar node anteroposteriorly com- 

 pressed, inclined forward, with rather a sharp, pointed border, convex 

 anterior and concave posterior surface; posterior constricted portion 

 of the petiole nearly as long as the node is high. Gaster large. 

 Legs long and slender. 



Surface shining; mandible and clypeus very finely longitudinally 

 rugulose; head densely punctate and on the front, vertex and behind 

 the eyes with a number of shallow foveolse. Thorax, petiole and 

 gaster finely shagreened and sparsely punctate, the surface of the 

 meso- and epinotum uneven. 



Hairs erect, moderately long and abundant on the head, thorax 

 and gaster; scapes and legs invested with fine, appressed pubescence. 



Color black; mandibles red; whole body covered with a silvery 

 air film. 



Described from a single beautifully preserved specimen (B 14126) 

 in the Geolog. Inst. Koenigsberg Coll. 



This species is much more slender than D. halticus and pansahmma 

 and the head and thorax are of a very different shape. The eyes 

 are much more convex than in halticus but much larger and less 

 protruding than in passalomtna. 



Dolichoderus (Hypodinea) niesostevnalis sp. nov. 



Worker (Fig. 36.) Length 5,5 — 7 mm. 



Head elliptical, excluding the mandibles fully 1\;, times as long 

 as broad, with evenly convex sides and nearly straight posterior 



Schriften d. Physik.-Okonoin. fJosellschaft. JabrftanK LV. O 



