The Ants of the Baltic Amber. 
127 
the flexor surfaces of the tibise and metatarsi and a nnmber of short, stiff 
hairs at the tips of the femora and scapes. The body is coarsely 
shagreened and finely punctate and was probably opaque or subopaque 
in life, the mandibles are striatopunctate. The color is black as seen 
throngh silvery air-films. 
Described from two specimens in the Klebs Coli, (a 229 and 
K 1673). There can be no donbt that these represent a species quite 
distinct from F. flori, one which belongs to the rufa group and in its 
pilosity resembling the recent truncicola Nyl. of Enrope, except that 
the hairs on the body are much longer. Both specimens, and especially 
a 229, are somewhat decomposed and seem to have lost many of the 
hairs from the thorax. It must be remembered, however, that certain 
existing subspecies of F. truncicola, e. g. sinensis Wheeler of Central 
China and integra Nyl. of North America, show a peculiar absence 
of the erect hairs on certain portions of the body. 
Formica clymene, sp. nov. 
Worker. Length about 9 mm. 
Allied to F. rufa. Body more robust than in flori or even in 
phaethusa, and the head differing in shape, having the posterior border 
broadly but distinctly excised, with more prominent posterior Corners 
and somewhat flattened vertex, much as in large workers of the 
recent rufa and sanguinea forms. Clypeus, mandibles and palpi as in 
phaethusa ; antennse shorter, the scapes stouter and extending less than 
1 1 3 their length beyond the posterior corners of the head; joints 1 — 3 
of the funiculi slender, twice as long as broad, 4 — 6 a little longer 
than broad, the remaining joints, except the last, as broad as long. 
Eyes rather small and round. Thorax very robust, pro- and mesonotum 
together not longer than broad, convex and rounded above, the meso- 
notum circular. Mesoepinotal constriction short and deep. Epinotum 
short and broad, with subequal base and declivity meeting at a blunt 
but distinct angle. Petiolar node broad and much compressed antero- 
posteriorly, with convex anterior and flattened posterior surface, its 
border very sharp, slightly produced and notched in the middle and 
abruptly turned backward with a small concavity on the anterior sur- 
face just in front of the border. Gaster large; legs robust. 
Body and appendages densely shagreened, mandibles densely, 
head and base of gaster more sparsely punctate. 
Erect hairs absent, except on the tip of the gaster, where they 
are short and coarse. 
Color black. 
