OTIORHYNCHIDA—CYPHINI. 49 
rapidly and arched, its surface a little rough. The elytra are scarcely longer 
than the height of the body, acutely striate, with rather distant distinct 
punctures. 
Length of body, 46"; elytra, 3-2"; height of body, 3™. 
White river, western Colorado, from the very lowest shales. One 
specimen, No. 544, U.S. Geological Survey. Roan mountains, western 
Colorado, from near the richest shales at summit of bluff at head of East 
Salt creek. One specimen, No. 951, U. 8. Geological Survey. 
Tribe TANYMECINI. 
A single species of Tanymecus occurs at Green River, and a species 
of Thylacites has been described by Deichmiiller from Kutschlin, Bohemia. 
TANYMECUS Germar. 
The Old World possesses the largest number of species of this genus 
in which Gemminger and Harold in 1871 catalogued fifty-seven species, 
but besides the two which are found in the eastern half of the United States, 
only two others are known from the New World, Mexico and Brazil pos- 
sessing each one species. The only fossil species recognized is one found 
at Green River, Wyoming. 
TANYMECUS SECULORUM. 
Tanymecus seculorum Scudd., Tert. Ins. N. A., 475-476, Pl. vin, Fig. 22 (1890). 
No more specimens have been found. 
Green River, Wyoming. Dr. A. 8. Packard. 
Tribe GCYPHINI. 
Three existing genera of this tribe, each with a single species (Entimus, 
Syntomostylus, and Artipus), are found in the White river and Roan 
mountains, but have not been found apart from the Gosiute fauna. In Ku- 
rope a species of Naupactus is described from Oeningen by Heer, and 
Smith mentions a species doubtfully referred to Strophosomus as found in 
the Eocene of Peckham, England, 
4 
MON XXI 
