126 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 
Length, excluding rostrum, 6°8""; rostrum, 27-4"; hei 
ght of body, 
3a 5 cans 
Florissant, Colorado. One species, No. 13674. 
CRYPTORHYNCHUS Tliger. 
A very numerous genus, with two or three hundred species, spread very 
widely, but more numerous in America than in all the rest of the world. 
Europe has only a single species, also found in North America, which pos- 
sesses besides about fifteen species, all of which occur east of the Rocky 
mountains only. 
Three species are recorded from the European Tertiaries, one each at 
Rott, Aix, and Brunstatt, but none of them have any special relationship 
with the four forms from the American Tertiaries, of which two come from 
Florissant, two from the Gosiute fauna. These species are placed in this 
genus rather as typical of the group whose name it bears than in any strict 
sense. They agree in haying a general resemblance to the typical members 
of this group, with a recurved rostrum, rather small eyes, and no prominent 
postocular lobes; the abdominal segments seem to be of nearly uniform 
length. 
Table of the species of Cryptorhynchus. 
Punctuation of the thorax very delicate, hardly perceptible. ...........-..---- durus. 
Punctuation of the prothorax moderately coarse; the puncta about 0.045™™ in diam- 
eter; all the strive equally impressed. 
Head short, less (or rarely more) than one-third as long as the prothorax; ros- 
trum as long as head and prothorax together.....---..--...-.-+-..-- kerri. 
Head relatively long, generally half as long as the prothorax; rostrum shorter 
than headvandsprobhorax togethers see ee ae profusus. 
Punctuation of the prothorax very coarse, the puncta about 0.06" in diameter; the 
Strive Uneqwally impressed ae csser ese ene eee ee annosus. 
CRYPTORHYNCHUS DURUS. 
Pl sa. Baess: 
Body long obovate. Head not very short, about one-half the length of 
the prothorax, apparently quite smooth; the eyes moderately large, scarcely 
oval, and transverse; rostrum rather stout, ¢ 
gently arcuate, not quite so long 
