OTIORHYNCHIDH®-—OTIORHYNCHINI. AT 
fellows by considerably more than its own diameter; the interspaces flat 
and densely clothed with rather coarse pile. 
Length, 7°"; breadih, 3™™. 
Florissant, Colorado. One specimen, No. 969 and 970, U.S. Geolog- 
ical Survey. 
OTIORHYNCHITES 'TYSONI. 
Pix Pic 12: 
Elytron of moderate length, the inner margin straight, the outer strongly 
convex, the apex pointed, scarcely outside the line of the inner margin; ten 
not very deeply impressed striae, all but the first, second, ninth, and tenth 
subconfluent at some distance before the tip, these, and especially the first 
and second, evanescent beyond the others, leaving a considerable portion of 
the tip smooth; puncta small, rather deeply impressed, slightly elongated, 
distant from each other by scarcely more than their own length; interspaces 
flat, smooth. 
Length, 6"; breadth in advance of middle, 2°75™™. 
Roan mountains, western Colorado, from the richest beds at top of 
bluff at head of Kast Salt creek. One specimen, No. 199, U.S. Geological 
Survey. Green River city, Wyoming, bluffs behind town. One specimen, 
No. 791, U.S. Geological Survey. (This last is placed here with much 
doubt.) 
I have given this species the name of the late Philip T. Tyson, the 
geologist of Maryland. 
OTIORHYNCHITES FOSSILIS. 
Elvan ic: 
Elytron of moderate length, the immer margin nearly straight, the outer 
very strongly convex, the elytron narrowing strongly at base, the apex 
bluntly pointed; ten deeply impressed, sharp striee, the second and third 
strongly arcuate at apex, almost meeting the tenth and inclosing a small 
open space, where the intermediate striae converge but do not become even 
subconfluent, fading apically; puncta strong, those of the first stria linear, 
