60 ENTOMOLOGICAL SOCIETY 
inconspicuous, appearing to be normally dark rufous or piceous velvety 
when the extraneous argillaceous covering does not persist. 
Rostrum three-fifths the length of the thorax, considerably arcuate, 
strongly subequally compressed, apex prolonged at the posterior angle 
with an acute spine, producing the appearance of greater curvature of the 
inner surface, base feebly protuberant, moderately dilated; anterior face 
of apex broadly deeply concave ; surface minutely punctate, more distinctly 
and densely at base, base moderately deeply channeled with distinct deep 
interocular puncture and short impressed line. 
Thorax longer than wide, fully three-fourths as long as the elytra, 
sides usually widest just in front of middle, anterior third suddenly and 
very strongly arcuate and constricted at apex, posterior two-thirds or 
three-fourths subparallel, or gradually narrowing to the base which is 
feebly bisinuate. Vittae feebly elevated, tending toward obsolescence, 
moderately finely but distinctly and sparsely punctate, more coarsely and 
densely at the ends ; median vitta extending from a fine line and rapidly 
widening to a point just in front of the middle where it is broadly dilated, 
then more abruptly narrowed, extending in a narrower line to near the 
base; lateral vittse sinuous with a tendency to become confluent with the 
median in the apical half, generally a little wider in basal half but nar- 
rower than the median, branch wide but ill-defined; interspaces and sur- 
face at sides coarsely foveate-punctate, punctures becoming confluent, 
especially posteriorly at sides. Scutellum deeply broadly concave. 
Elytra little wider than the thorax; striae usually deep and well defined, 
distinctly closely punctate; intervals with first, third and fifth elevated, 
with two or more series of rows of fine punctulation ; first or sutural with 
basal third triseriately, posterior two-thirds biseriately punctulate; third 
widest and most elevated, with four or five rows of fine punctulations; 
fifth biseriately punctulate; seventh little or not at all more elevated than 
the remaining intervals; intervals 2, 4, 6, 8, as also 7, more coarsely and 
closely uniseriately punctulate. Pygidium deeply, coarsely and rather 
sparsely punctate, with sparse golden yellow hairs proceeding from the 
punctures and forming a short tuft each side, frequently abraded. 
Lower surface coarsely and rather densely punctate, scarcely less strongly 
at the middle than at the sides, punctures largest at the middle of the 
metathorax. Punctures of the metepisterna (side pieces) more or less 
confluent. Second, third and fourth abdominal segments nearly uniformly 
punctured throughout, like the legs. 
<3\ First abdominal segment very feebly concave; pygidium truncate 
at apex. 
. First ventral scarcely different ; pygidium narrowed and rounded 
at apex. 
Aside from the differently shaped pygidium and the slightly shorter and 
less compressed rostrum there is little difference between the sexes. 
Length, 10-15 mm., width, 4.5-6.0 mm. 
