WHEELER: ANTS OF THE GENUS FORMICA. Rot 
Hairs and pubescence grayish, both abundant, covering the whole 
body, the erect hairs on the head, clypeus, gula, mesonotum, scutel- 
lum, petiolar border and both the upper and lower surfaces of the 
gaster being very conspicuous and the pubescence being unusually 
long, though not sufficiently abundant to conceal completely the 
ground surface. Eyes hairless. 
Black; genitalia and tips of mandibles red; legs yellowish red, 
with the middle portions of the femora blackened. Wings uniformly 
and moderately infuscated, with pale brown veins and dark brown 
stigma. 
Described from four workers and two males taken from a single 
colony by Prof. C. F. Baker in King’s Canyon, Ormsby County, 
Nevada. The specimens were nesting under a log. 
At first sight one would not hesitate to regard this ant as F. fusca 
var. subsericea, but closer examination shows it to be quite distinct. 
The eyes of the worker are much smaller than those of subsericea, 
the antennae are more slender, with less curved scapes, it has promi- 
nent hairs on the gula and the surface of the body is bronzy and not so 
black. 'The male is very different from the male subsericea in having 
smaller eyes, broad, toothed mandibles, a much more pronounced 
sculpture and very different pilosity and pubescence. 
114. F. susrura Roger. 
F. subrufa Roger, Berlin. ent. zeitschr., 1859, 3, p. 236, 8; Mayr, Europ. 
Formicid., 1861, p. 46, 8; Ern. André, Rev. mag. zool., 1874, ser. 3, 2, 
p. 183; Spec. Hymén. Europe, 1882, 2, pt. 14, p. 181, 8; Dalla Torre, 
Catalog. Hymen., 1893, 7, p. 212; Emery, Zool. jahrb. Syst., 1894, 7, pl. 
22, fig. 20, 8 ; Deutsch. ent. zeitschr., 1909, p. 199, 8 92 o?, fig. 10. 
WorkKER. Length 5-6.5 mm. 
Body slender; head, excluding the mandibles, distinctly longer than 
broad, narrower in front than behind, with nearly straight posterior 
and lateral borders and rounded posterior corners. Eyes rather large, 
convex. Clypeus strongly carinate, its anterior border produced, 
feebly sinuate or trunate in the middle. Frontal carinae diverging 
behind. Maxillary palpi long, 6-jointed. Antennae slender, scapes 
not incrassated towards their tips. Thorax narrow, with moderately 
rounded pro- and mesonotum and similarly rounded epinotum, sepa- 
rated by a very long, shallow, saddle-shaped mesoépinotal constric- 
tion, so that the thorax is somewhat dumb-bell-shaped both in profile 
and when seen from above. Petiole narrow, cuneate in profile, 
thick below, compressed above, but with a blunt border which, seen 
