RHYNCHITIDH—ISOTHEINH—TOXORHYNCHINI. 25 
tudinal lines. The elytra are feebly carinate, the carine granulate, the 
granulations dull and rather smaller than on the prothorax; a few scattered 
short hairs can be seen. The abdominal segments are feebly, coarsely, and 
transversely corrugate, the corrugations irregular and broken. 
The specimen figured does not show the antennz. 
Length of body, excluding rostrum, 35"; height, 2"; length of ros- 
frum, 1-67". 
Florissant, Colorado. Three specimens, Nos. 498, 6982, 7558. 
DocirRHYNCHUS CULEX. 
d < Ne 6 
PES var, Rigs: 
The sculpturing of the surface is somewhat obscurely preserved, but 
the head can be seen to be transversely corrugate, and the beak, which is 
excessively long and straight, as.long by itself as the elytra, is longitudi- 
nally carinate. The prothorax appears to be finely granulate, and the elytra 
striate, but little can be seen. 
Length of body, excluding rostrum, 4:2""; height, 2.2"; length of ros- 
TUM ies 
Florissant, Colorado. One specimen, No. 8823. 
TERETRUM (réperpor), gen. nov. 3 
Héad conical, nearly as long as broad, the eyes rather large, inferior, 
the facets large and few in number; rostrum gently curved, moderately 
slender; antennz imperfectly preserved and in only one species, where the 
club is twice as broad as the funicle, its joints subquadrate and equal. ‘Thorax 
higher than long, more or less arched. Elytra with longitudinal sculpture ; 
pygidium apparently exposed. Legs unusually slender, except the apically 
swollen fore femora. 
Two species occur, one each from Wyoming and Colorado. 
Table of the species of Teretrum. 
Rostrum considerably longer than the prothorax.........--.----------- primulum, 
Rostrum scarcely, if at all, longer than the prothorax........--.-..----- quiescitum. 
