20 
NORTH AMERICAN THROSCIDAE 
scription was based on a single male from Florida. In Insect 
Life (III, p. 41), Mr. Schwarz records the finding of a specimen 
in the District of Columbia. This specimen was afterward lost 
in sending it to Dr. Horn. H. C. F.] 
12. Aulonothroscus convergens Horn 
Elongate, narrowed behind, piceous or reddish brown, clothed with fine 
pubescence and conspicuous longer hairs, surface shining, the minute punctu- 
ation microscopic. Head convex, finely, sparsely punctate with two, not dis- 
tant, converging carinae which meet on the clypeus, thence strongly divergent 
to the lower or anterior angles of the clypeus. Eyes deeply, triangularly emar- 
ginate at the insertion of the antennae, orbits finely impressed, separated in 
the female by a distance greater than their own diameter and in the male by a 
little less than a diameter. Antennae with the club smaller in the female, but 
with joints distinctly produced laterally; in the male larger with joints more 
prolonged laterally. Thorax not very convex, one-half wider than long, apex 
about as wide as the length, sides finely margined nearly to apex, a fine dis- 
tinct Carina within, more than half as long as the margin, feebly bi-impressed 
at base, finely, uniformly, not closely punctate, sides broadly arcuate in female, 
in male more dilated at base with sides parallel, then obhquely narrow'ed ante- 
riorly. Elytra as wide at base as thorax, gradually, distinctly narrowed be- 
hind, more strongly in the male, broadly obliquely impressed at sides behind 
the humeri, striae very fine with rather distant, small punctures not larger 
than those of the intervals, which are smaller than those of the pronotum, 
sparse and a little irregular near the base but mostly uniseriate and finer, those 
of the striae much coarser at apex. Prosternum narrow with striae parallel 
and entire, a few small punctures anteriorly, flanks and sides of metasternum 
rather strongly and coarsely cribrate, middle of metasternum and hind coxae 
more finely punctate. First ventral with coarse punctures at sides, the othfer 
segments sparsely punctate, the last more coarsely. Length 1.7 to 2.5 mm. 
Like distans this species is very similar in form to Throscus 
chevrolati, and more especially to the large form named carinicollis 
by Schaeffer. From distans it is easily distinguished by the 
much more deeply emarginate eyes differing in the sexes, and 
much more approximate carinae. The carinae are variable in 
prominence, being sometimes quite feeble. Pugnax, with similar 
eyes, has the carinae parallel, not meeting at the front margin. 
Specimens are before me from New York, District of Columbia, 
Tennessee, North Carolina, Georgia, Florida and Louisiana. 
13. Aulonothroscus nodifrons new’ species 
Form of convergens female or a little stouter, narrowed behind, brownish 
piceous, finely pubescent, the longer hairs of the elytxal striae distinct; elytral 
striae nearly obsolete except the sutural, w’hich is fine, and the deep ninth or 
marginal. Head rather coarsely punctate, less closely on the occiput, convex, 
the epistoma anteriorly abruptly inflexed, deeply impressed and strongly, 
