33 
The number of larvae found in a hill varied from one or two 
to ten or twelve, and their great activity in the ground- 
through which they moved with ease—suggested the probability 
of their going from hill to hill, as their necessities required. 
This genus has never been reported in the larval state in this 
country except on the occasion mentioned, and then on no other 
plant except corn. Search among the roots of other plants in 
the infested field,—pigweed (Amarantus), purslane, pigeon-grass, 
cockle-bur, etc.,—failed to discover them. 
Description .—It is nearly an inch long when full grown, and 
scarcely a millimeter (.04 inch) wide, whitish in color, becoming 
yellowish on the thorax and darker yellowish brown on the head, 
sparsely clothed with long hairs. The head, including the mouth 
parts, is nearly three times as long as wide, with the sides 
almost straight. The clypeus is greatly elongated, the posterior 
portion linear and tapering almost to a point behind, the an¬ 
terior part (epistoma) rectangular, one third longer than wide, 
behind marked off by an impressed line, in front notched at 
middle, bearing a fringe of short hair each side of the notch, 
and emarginate behind each antenna. The antennae are robust, 
flattened above, the first joint subtriangular, but little longer 
than wide, the second oblong, twice as long as the first, its 
apex obliquely truncate, making the outer side the shortest. 
At the inner angle of its apex is attached the very small third 
joint, which is directed obliquely outward; and near the outer 
angle is placed an accessory joint. No trace of ocelli appear. 
The mandibles are about half as long as the head, dark brown, 
vertically flattened, deeply grooved, cleft half-way to the base 
into, two branches, one above the other, parallel and nearly 
straight, their apices slightly curved outwards. The upper 
branch bears on its inner edge three sharp teeth directed mesad, 
with a small denticle on each side of the proximal one. The 
maxillae are slender at their bases, which are provided with 
numerous long hairs, and are scarcely separated by the very 
slender labium. The prominent excurved four-jointed maxil¬ 
lary palpi are inferior, and the inner maxillary lobe with 
its brushes of long yellowish hair is superior. Between the max¬ 
illae extends the very slender distal portion of the labium, with 
diverging two-jointed palpi at tip. Thoracic legs rather stout 
and long, and furnished with long hairs on the coxae and 
femora, the latter with about three small spines on the under 
side towards the apex. The tibiae each have one or two small 
spines below, and several short brown spines at the tip. 
4he first eight abdominal segments are similar, and consist 
of three divisions each, except that the first division of the first 
abdominal, and the last division of the eighth, are wanting. 
The middle division is wider and subglobose; the other divisions 
are narrower and subcvlindrical, the anterior short, the posterior 
as long as the middle portion. All the abdominal segments are 
marked below with seven longitudinal sulcations, the median 
-3 E. 
