CURCULIONID4—CURCULIONIN &. RD 
long, subacuminate at tip, the striee sharp, slender, and rather deep, with 
very minute, very distant, and faintly impressed, and therefore inconspicu- 
ous puncta, the interspaces smooth and broadly rounded. Legs rather 
long, the femora moderately clavate at tip, the tibize slender and equal. 
Length, excluding rostrum, 3°75"™"; rostrum, 1:25™"; elytra, 2°5™"; 
height of body, 2?™". 
Roan mountains, western Colorado, from the richest beds at summit of 
biuiis overlooking the head of East Salt creek. One specimen, Nos. 1029 
and 1030, U. 8. Geological Survey. 
APION REFRENATUM. 
A relatively slender form, largest in the middle of the elytra, much as 
in Smith’s fifth section. Head about twice as high as long, tapering very 
rapidly, with arcuate sides, behind delicately and transversely striate ; eye 
circular, rather large, situated in the middle of the head (a little too far for- 
ward in the figure) and but little separated from the front edge of the pro- 
thorax, the facets about 0:015"" in diameter; beak nearly as long as the 
head and prothorax together, slender and equal, gently arcuate throughout. 
Thorax much higher than long, tapering a little, with slightly rounded sides, 
the surface rather coarsely punctate. Elytra rather elongate, fully twice as 
long as broad, not very arcuate except at the extreme posterior portion, 
with heavy, very faintly and rather coarsely punctate strive. Legs moder- 
ately long and rather slender, the femora not greatly enlarged. 
Leneth, excluding rostrum, 2°5""; rostrum, 0°65™" ;-elytra 2™"; height 
of body, 1°25™™. 
There is some resemblance between this species and A. sulcatum Forster, 
from the Oligocene of Brunstatt. 
Florissant, Colorado. One specimen, No. 505. 
Subfamily CURCULIONIN AE. 
The bulk of fossil Curculionide naturally fall into this subfamily, by far 
the most important in the existing fauna. All the larger tribes of the sub- 
family found to-day in America occur in the Tertiary rocks of our West, and 
