The Ants of the Baltic Amber. 
105 
of the funiculi subequal, about twice as long as broad, joints 3 and 4 
about l 1 ^ times as long as broad, 5 and 6 scarcely longer than broad, 
the terminal joint nearly equalling the two penultimate joints together. 
Palpi short, those of the maxillse 6-jointed, those of the labium 
4-jointed. Thorax long, narrower than the head, constricted in the 
mesoepinotal region; pronotum as long as broad, with rounded, sloping 
humeri, feebly convex above. Mesonotum from above subrectangular, 
somewhat longer than broad and broad er in front than behind; in 
profile its surf'ace is straight and 
gradually sloping backward, its sides 
compressed. Metanotum distinct, 
short and transverse, marked off from 
the mesonotum by an impressed line 
or possibly, in the largest specimens 
by a distinct suture. Epinotum 
with subequal base and declivity, 
the former feebly convex, the latter 
slightly concave, meeting at a blunt 
obtuse angle. Petiole short, with a 
low, blunt and rounded node, which 
is somewhat compressed anteropos- 
teriorly and about l 1 ^ times as broad 
as long. Gaster large, elongate oval, 
with 5 visible segments and a strongly 
developed circlet of anal cilia. Legs 
long and rather stout, middle and 
hind tibise with short, nonpectinated 
spurs. 
Body rather shining, head and 
gaster very f in ely, thorax more coar- , J7 . ^ 
° J J 7 r ig. 50. Dimorphomyrmex theryi Bmery. 
sely and reticulately shagreened or a ) Workcr, K 4252; b) head of worker. 
coriaceous. Mandibles, clypeus at 
least on the sides, cheeks and front between the eyes and 
about half way to the posterior border of the head, sharply 
and densely longitudinally striated; the mandibles also coarsely 
punctate. 
Erect hairs absent or almost absent on all parts of the body 
except the posterior gastric segments where they are long and sparse. 
Funiculi with shorter, more numerous, appressed hairs. 
Color of well preserved specimens red or black. 
Worker minor. Length 5 — 5,5 mm. 
