OTIORHY NCHID—BRACHYDERINI. 50 
the thorax is partially and the head completely turned to show a side 
view. 
Length, exclusive of rostrum, 5°25™"; rostrum, 0°5""; breadth, 
Senn 
Florissant, Colorado. One specimen, No. 2271. 
TENILLUS (zezv@, ’/AAos), gen. nov. 
The length of the beak of this insect suggests at first that it belongs 
to the Curculionidz, but the completely concealed metasternal epimera, 
with the stoutness of the rostrum, indicate pretty clearly that it belongs to 
the Otiorhynchide. As the thorax shows no signs of postocular lobes or 
fimbrize, and the antennal scrobes are lateral and curve down so as to ter- 
minate beneath the eye, it clearly belongs in the Brachyderini, but it can 
not possibly be referred to any of our living genera. ‘The head is moder- 
ately long, but the rostrum, a little arcuate, is nearly twice as long as the 
head and apparently with a pair of superior longitudinal sulci; the eyes 
are broadly oval and longitudinal. The thorax is tapermg without ocular 
lobes or fimbriz. The first and second abdominal segments are subequal 
and slightly longer than the equal third and fourth, all with distinct and 
simple sutures, as far as can be seen. ‘Tibize a little arcuate, the third 
tarsal joint apparently not wider than the second. It would seem to be not 
far removed from Trigonoscuta and Calyptillus. 
A single species is known, from Florissant. 
TENILLUS FIRMUS. 
Pl. vin, Fig. 8. 
Head subconical, punctate, as coarsely but not quite so densely nor 
nearly so deeply as the prothorax; eyes fully half as long again as high, 
infringing on the beak, which is stout, considerably arcuate, especially 
toward the apex, longer than the thorax and nearly twice as long as the 
head, apparently smooth. Prothorax much higher than long, tapering, very 
densely, rather coarsely, and deeply punctate. Under surface of thorax 
similarly but even more densely punctate; of abdomen, indistinctly punctate. 
