i02 TERTIARY RHYNCHOPHOROUS COLEOPTERA 
PROCAS Stephens. 
Only four or five living species of this genus are known, peculiar to 
Europe and the Mediterranean region, one of which occurs also in this coun- 
try in the Lake Superior region. 
The two species from the Rocky mountains, placed here, can not be 
regarded as properly members of this genus, though they appear to fall very 
near it. That from western Colorado and Utah has too slender and equal 
tibize, and is of too slender a form; that from Florissant has too stout a 
rostrum and too strongly clavate thighs; while in both, the elytra are too 
narrow at base, with relation to the thorax, to permit them to be placed here 
in any strict sense, and it is equally clear that they do not belong together, 
and must be placed here only provisionally. 
Table of the species of Procas. 
Beak slender, longer than head and prothorax together ...............-... vinculatus. 
Beak rather stout, shorter than head and prothorax together...........-. verberatus. 
PROcAS VINCULATUS. 
D ve {“ ~ - 
Pl xe ig) 3! 
Body rather slender, elongate oval. Head small, nearly twice as high 
as long, finely punctate; eyes rather small, circular, well removed from the 
margin of the prothorax; rostrum a little longer than head and_prothorax 
together, slender, gently arcuate, equal throughout. Prothorax twice as 
high as long, tapering gently, the dorsum arched slightly, the surface not 
very densely punctate. lytra slender and obscure but apparently feebly 
punctato-striate. Legs not stout nor very long, the tibie slender and 
straight, not enlarged at the apex. . 
Length, excluding rostrum, 3°2"; rostrum, 0-9"; elytra, 2°5™" ; height 
of body, 1m 
Roan mountains, western Colorado, from the richest insect beds at. t ”p 
of bluffs above the head waters of East Salt creek. One specimen, Nos. 
1038 and 1039, U. 8S. Geological Survey. White river, Utah, at the 
Colorado line, from the very highest beds. One specimen, No. 704, U.S. 
Geological Survey. 
