1934 ] 
Three New North American Ants 
187 
lateral of these curve downward under the antennal fossae 
and are carried forward to the insertion of the mandible. 
In such specimens the head is feebly shining with a semi- 
matte appearance. In other specimens the striae are almost 
entirely absent being represented by a few on the posterior 
parts of the frontal carinae and others on the side of the head 
between the eye and the insertion of the mandible. In such 
specimens the remainder of the head is highly glabrous with 
numerous, small piligerous punctures. The same variability 
is true to a lesser extent of the thoracic sculpture. In some 
specimens the entire thorax is covered with fine punctures 
which grade into longitudinal striae on the pleurae. Such 
specimens are feebly shining. In other specimens the whole 
thorax is highly glabrous, entirely without sculpture except 
for a few feeble lines or punctures at the base of the pleurae, 
The sculpture of the petiolar nodes is more constant since 
even in the heavily sculptured individuals, these are in large 
part glabrous. Abdomen smooth and shining with fairly 
numerous small piligerous punctures. 
In color and pilosity the insect is more uniform. The 
head is piceous with the mandibles a somewhat more brown- 
ish black and having a wide band of sordid yellow extending 
along the masticatory margin. Thoracic dorsum blackish 
brown, the pleurae of the pronotum clear, brownish yellow, 
the pleura of the mesonotum and epinotum a clear brown 
which is somewhat lighter on the declivious face of the epi- 
notum. Petiolar nodes blackish brown. Abdomen a darker 
brown than the petiolar nodes but not as black as the head. 
The entire insect covered with rather long, slender, curved 
hairs' which are pointed, erect and yellowish in color . These 
are most abundant on the head particularly on the ventral 
surface where they form poorly developed gular ammochse- 
tae. Flexor surface of the femora with a row of stiff, erect 
bristles. Extensor surface of the femora, tibiae, tarsi, an- 
tennal scapes and the proximal half of the funiculi covered 
with small, fine reclinate hairs. Clubs of the funiculi pubes- 
cent. 
