478 TERTIARY INSECTS OF NORTH AMERICA. 



elytra, indeed, does not well correspond, since, in place of their abrupt pos- 

 terior descent, as seen in O. cinereus Schonh. from Mexico, with which it 

 agrees best in general features as also in size, they slope very gradually, 

 and appear to be tumid next the base. But the structure of the stout snout, 

 enlarged apically, with very oblique descending antennal scrobes, the supe- 

 rior transverse furrow at its base giving an increased convexity to the ver- 

 tex of the head, ally it closely to Ophryastes. The ovate eye is longitudi- 

 nal, the front border of the pronotum nearly straight, with no advance of 

 the sides, the prothorax itself faintly rugulose, the elytra coarsely striate, 

 the stria 1 , with feeble, rather distant punctures (the reverse is shown on the 

 stone) ; the tips of the elytra are right-angled or slightly produced at the 

 extremity, as in recent species. 



Length of body, measured from base of rostrum, 7.5'"'" ; height of 

 same, ,'>.5 mm ; length of elytra, f>.5 11 "" ; of rostrum beyond front of eyes, 

 1.2' 1 "": breadth of rostrum at base, 0.9""" ; where largest, l.()5 min ; length of 

 eye, 0.5 m '" ; breadth of same, 0.3 mm ; distance apart of the elytra! striae, 

 0.35 mm . 



Green River, Wyoming. One specimen, No. 4210. 



EPICURUS Schr.nherr. 



EPICJERUS SAXATILIS. 



PI. 8, Figs. 33, 34, 36. 



Eitdiagogus saxatttis Scmld., Bull. U. S. Geol. Geogr. Surv. Terr., II, 84-85 (1876). 

 Epicrenis saxatilis Scndd., Bull. U. S. Geol. Geogr. Surv. Terr., IV, 765 (187S). 



Twenty-seven specimens of this species have been found by Mr. Rich- 

 ardson, Mr. Bowditch, and myself. This and the two following species can 

 not, as at first supposed, be referred to Eudiagogus on account of the length 

 of the snout. Although very small for Epica>ri (especially the present 

 species), they agree so well with Epicserus griseus Schonh. from Mexico 

 one of the smallest of the group that they would best be referred here, 

 although they differ from this genus in the brevity and stoutness of the 

 femora, all of which are swollen apically. It is possible that all three of the 

 forms mentioned here should be referred to a single species, as there is cer- 

 tainly very little difference between them excepting in size; this is particu- 

 larly the case with this and the next species. Together over one hundred 



