WHEELER: ANTS OF THE GENUS FORMICA. 413 
Host (Stave). F. fusca var. subsericea. 
Described from several specimens taken from a single colony at 
Tuckahoe, N. Y. To the same variety I refer a number of workers 
which I took from several nests at Calhoun, Waukesha County, Wis- 
consin, although these specimens are somewhat darker and more 
reddish. In these respects they are transitional to the typical sub- 
integra. 
12. F. SANGUINEA PUBERULA Emery. 
F. sanguinea subsp. puberula Emery, Zool. jahrb. Syst., 1893, 7, p. 648, 8 ; 
Wheeler, Ants, 1910, p. 458, 570. 
WorkKER. Length 4-6 mm. 
Head rather large, in large workers shaped like that of rubicunda, 
with less convex sides, and less rounded posterior angles than in 
subintegra. Clypeal notch broad and rather deep. Antennal scapes 
often distinctly thickened towards their tips. Thorax and petiole 
similar to those of subintegra, but the latter more compressed antero- 
posteriorly, less convex anteriorly and usually with a sharper upper 
border, which is sometimes feebly notched in the middle. 
Surface of body as in subintegra; mandibles more shining because 
more densely and superficially striated and less distinctly punctate. 
Hairs yellow, more abundant than in subintegra, present on the pro- 
and mesonotum, petiolar border and gula. Those on the gaster are 
long and slender. Anterior surfaces of tibiae with small, oblique 
hairs and without appressed pubescence. Pubescence grayish, 
moderately abundant on the gaster, finer and sparser but still visible 
on the head and thorax, long on the antennal scapes, especially towards 
their tips. 
Color like that of subintegra, the head, thorax, and appendages 
being yellowish red, the gaster brown. 
FEMALE. Length 7-8 mm. 
Closely resembling the worker in sculpture, pilosity, and color. 
Mandibles coarsely striatopunctate. Clypealnotch deep. Antennal 
scapes considerably enlarged towards their tips. Mesonotum with- 
out dark spots. Wings rather deeply infuscated at their bases. 
Mate. Length 7-8 mm. 
Mandibles indistinctly toothed; clypeus convex, carinate, with 
feebly but distinctly emarginate anterior border. Petiole transverse, 
low and thick, with blunt, slightly excised superior border. 
Pilosity and pubescence much as in the male of subintegra, the 
pubescence perhaps a, trifle longer and more conspicuous on the legs. 
Black; antennae dark brown; legs yellow, the femora sometimes 
infuscated. Genitalia brownish. Wings usually very deeply infus- 
cated at their bases. 
