246 NaTuRAL History BuLuetIn. 
T. LoneipALpus, Lec. Yellowish-brown, impunctate, sub- 
depressed, pubescence long, erect. Plate VIL., Figs. 25 and 26. 
ffead, including the eyes, as long as wide, tempora slightly 
arcuate, convergent, not prominent, longer than the eyes, 
which are prominent, coarsely facetted, lateral margin straight 
between the eyes and the frontal tubercle, edge rounded. 
Frontal tubercles quadrate, separated by a fine impressed 
line prolonged backward, disk transversely convex, longitu- 
dinally not so; half-way between the eye and the frontal 
tubercle on each side is a sharp tubercle pointing outward. 
The declivous frontal surface and the concave clypeus are per- 
pendicular to the vertex; labium three times wider than long, 
not emarginate. /Pa/fz with the second joint arcuate, clavate 
beyond the middle, extending from its insertion to the pos- 
terior margin of the eye. Third joint more than half as long, 
cultriform, widest at the base, fourth securiform, shortly 
pedunculate, widest at middle and as long as the second. 
Antenne longer than the head and prothorax, first joint obcon- 
ical, flattened above, twice as long as the second, which is 
oval and not so thick; third to eighth subequal, the fifth being 
but slightly stronger and the eighth the smallest; ninth glob- 
ular, twice as wide as the eighth, tenth larger, globular, 
eleventh ovate, twice as long as the tenth. Prothorax widest 
near the middle, slightly wider than long, convex, base double 
the width of the neck, median fovea small and rounded. Lat- 
eral fovez situated in shallow longitudinal impressions, no 
intermediate ones. /ytra depressed, one-half longer than 
the prothorax, the distance across the prominent shoulders 
being the same. They are broadest one-third from the tip, 
disk slightly broadly arcuate at the sides, sutural lines deep,. 
discal lines abbreviated near the middle. Shoulders rounded, 
prominent, the declivous lateral portions punctured. Abdomen 
narrowly margined, segments subequal, the first longest, one- 
third as long as wide. The fourth is also longer than its 
neighbors. Legs with the third tarsal joint longer than the 
second. 
Habitat. United States east of the Rocky Mountains. 
