The Ants of the Baltic Amber. 
83 
of epinotum coarsely shagreened ; gaster and legs finely shagreened, 
with scattered, piligerons punctnres. 
Hairs on the head, thorax and gaster moderately long, erect 
and uniformly distributed. Lower surfaces of fore femora also with 
a few erect hairs, otherwise the legs and scapes bear only fine, ap- 
pressed hairs or pnbescence. 
Color black. 
Described from four specimens in the Geolog. Inst. Koenigsberg 
Coli. (B 18806, type, B 18745, B 18576 and one withont a number) 
and one in the Klebs Coli. (K 5625). All of these specimens are 
more or less enveloped in silvery air films and all show most of the 
described peculiarities very distinctly. This species is distingnished 
from all the other described amber Dolichoderi by the tooth on the 
mesosternum, from D. elegans by the remarkable scnlptnre and the shape 
of the epinotnm, and by the latter character from any of the follow- 
ing species of the genus. 
Dolichoderus (Hypoclinea) vexillarius sp. nov. 
Worker (Big. 37.) Length 5,5 — 6 mm. 
Closely related to D. mesosternalis , bnt differing in the follow- 
ing characters: The posterior border of the head is more concave, 
the anterior raised border of the pronotnm is straight and transverse, 
terminating in the humeri, which are distinctly, thongh rather bluntly 
angular. The whole pronotum, 
including the neck, is about as 
long as broad. The base of the 
epinotum rises perpendicularly 
and convexly from the meso- 
epinotal constriction, forming al- 
most a right angle with the 
latter, so that it appears much 
shorter when seen from above 
and the concave declivity is 
more perpendicular. The meso- 
sternum bears no tooth. The 
sculpture is like that of mesosternalis, but the foveolse on the meso- 
notum are quite as distinct as on the pronotum, though they are 
feebler on the meso- and metapleurse. The pilosity and color are very 
similar to those of mesosternalis. 
Described from six workers in the Geolog. Inst. Koenigsberg 
Coli. (B 1689 type, B 18756, XXB 2137, XXB 203, XXB 222 and 
6 * 
Fig. 37. Dolichoderus (Hypoclinea) 
vexillarius sp. nov. Worker, B 1689. 
