280 
tured ; lateral margins (above and below the eyes) somewhat 
broad ; clypeus truncated at the apex— not produced : eyes 
small, with but few facets ; placed a little behind the 
middle of the head ; mandibles about three-fourths of the 
length of the head; semi- cylindrical, of nearly uniform 
thickness, indistinctly margined, the apex curved, ending 
in a stout tooth, cleft in two near the base, the under prong 
being thicker and shorter than the upper ; in front of this 
is a shorter and thinner tooth, which is not cleft, and issu- 
ing from the upperside of the mandible ; practically there are 
three apical teeth. Antennse a little longer than the head 
(without the mandibles) ; the scape somewhat longer than 
the following four joints united; first joint of fiagellum 
curved at base, as long as the succeeding two united, but 
shorter than the 5th ; the 3rd and 4th sub-equal ; 5th about 
double the length of the preceding two united ; 6th nearly 
as long as the preceding four united ; the scape bears a few 
semi-erect hairs. Thorax covered with net- work-like reticu- 
lations ; the prothorax bulging out in the middle in front 
of the mesothorax, which is a little narrowed behind ; meso- 
and meta-pleurse shining, almost impunctate ; the metathorax 
has a gradual slope to the middle ; then it becomes semi- 
perpendicular. At each side there is apparently a short tooth ; 
but as the hinder part of the metathorax is covered with a 
spongy growth, the form of the teeth cannot be made out, 
if they are present at all. The first node of the petiole is 
nearly three time^ longer than the 2nd, a little depressed at 
the base, becoming gradually raised to the apical third, 
where it rises more sharply, forming a distinct knot, rounded 
above and having a broad neck at the apex; the 2nd is 
higher than the first, is higher than long, and has also a 
distinct neck at the apex in front of the abdomen. Abdomen 
shining, impunctate, glabrous, the base with some longitudinal 
stout, distinctly separated, striations. Petiole shining, very 
finely shagreened. Thorax sparsely covered above with white 
hair, the metathorax behind, the sides and apex of the knots 
