96 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 
tudes and longitudes, while in the New World they are confined to North 
America, which possesses about twenty-five species, all of them restricted 
to the western half of the continent. No genus of Rhynchophora (except- 
ing that refuge for vague and ill-defined forms, Curculionites) has been so 
widely recognized in a fossil state. Half a dozen species have been figured 
from Aix alone, and one of these has been recognized also at Brunstatt, half 
a dozen or more others at Oeningen, besides two at Corent. In this country 
four species have been found at Florissant, none elsewhere, this being the 
only genus of Rhynchophora I know which is so much more richly devel- 
oped in Europe than in America. It may be doubted, however, whether 
all the European fossil species should be placed together. Of these species, 
our C. foersteri seems to bear closest resemblance to Oustalet’s C. arvenensis, 
from Aix; our C. exterraneus resembles not a little the same author’s C. 
inflexus from the same place; and our C. primoris is not very far removed 
from Heer’s C. asperulus, again from the same; while our C. degeneratus is 
altogether different from anything found in the European Tertiaries. 
Table of the species of Cleonus. 
Kye circular. 
Large species with short subequal rostrum. -.-..-..--.....-..-...--- exterraneus. 
Smaller species with long tapering rostrum. ...............-..-.-..-... primoris. 
Eye transverse. 
Rostrum stout, nearly straight, tapering.....-.........--.:----------- Soersteri. 
NOsirum slender, arcuate, Cqualiiss= 2 ss ase ee Soe ease eee degeneratus, 
CLEONUS EXTERRANEUS. 
Pl. 1, Figs. 13, 20. 
I place this species in this genus only as typical of the Cleonini, for 
the completely circular eye would seem to show that it can not properly be 
included in it. Ona side view the head and rostrum have a completely 
independent curvature, not properly shown in the figures; the head is smooth, 
excepting on the sides below the upper margin of the eye, where it is trans- 
versely and very finely rugose, and on the posterior portion, where it is faintly 
and finely punctate, like the rostrum. The thorax is closely and more 
coarsely punctate, and above faintly rugulose, The elytra, in none of the 
