44 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 
Roan mountains, western Colorado, from the richest beds at summit of 
bluffs at head of East Salt creek. Two specimens, Nos. 1009 and 1010, 1060 
and 1061, U. 8. Geological Survey. White river, Utah, next the Colorado 
line, from the highest point on the butte. One specimen, No. 906, U.S. 
Geological Survey. 
Tribe OTIORHYNCHINI. 
Four species of Otiorhynchus, four of Otiorhynchites, and one of Ne- 
optocus have been found in our American Tertiaries, all but one (a species 
of Otiorhynchites from Florissant) belonging to the Gosiute fauna. None 
of these genera have ever before been recognized in the earlier 'Tertiaries. 
The only members of this tribe recorded from the European Tertiaries are 
five species from the Pleistocene, all regarded as identical with existing 
forms, and a single species of Laparocerus from diluvial beds.in Madeira, 
mentioned by Heer. 
OTIORHYNCHUS Germar. 
This genus, now the most prolific in forms among all the Rhyn- 
chophora, numbers its species by the hundreds, almost all of which are ge- 
rontogeic, North America having but a scant half dozen, some of which 
are identical with those of the Old World. 
In Europe, the genus has been recognized in a fossil state only in the 
Pleistocene, Heer and Flach haying described three or four species or vari- 
eties which are regarded as identical with living species. In America we 
have referred here four species, mostly known (like the European) from 
their elytra; two of the species occur at Green river and two at the Roan 
mountains. 
Table of the species of Otiorhynchus. 
Elytra exceeding 5™™ in length. 
Prothorax only alittle higher than long; puncta of the elytra longitudinal . perditus. 
Prothorax nearly twice as high as long; puncta of the elytra circular. subteractus. 
Elytra not exceeding 4"™ in length. 
Strix between the punctures distinct and sharp.........--.-----.------- tumbe. 
Strie between the punctures indistinct.........................------. Jlaccus. 
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