144 TERTIAKY RHYNCHOrHOROUS COLEOrTEKA. 



Length, excluding rostrum, 3-9""'; rostrum, 1-3"'™ ; height of Ijody, 2-2""". 

 Plorissant, Colorado. Three specimens. No. fl(?G, U. S. Geological 

 Survey; Nos. 3022 and 3024, R. 1). Lacoe; No. 8623, 8. H. Scudder. 



Balaxinus duttoni. 



I'l. VII, Fig. 14. 



Body rather stout. Head short, l)ut broad at base; eyes moderately 

 small, siibcircular, toucliing the margin of the prothorax; l)eak nearly two- 

 thirds as long as tlu- l)odv, vci-v slender, arcuate moderately and almost 

 e«pially throughout, but cspccialh- in the apical two-thirds; antemia- ^vith 

 the first and second joints of the funicic of ccpial length, the whole funicle 

 and small elongate ii\-al clul) together about two-thii'ds as long as the 

 rostrum. I'rothorax about half as higli again as long, rapidly tapering 

 with rounded sides, the sui'face densely and not very finely punctate, 

 appearing in reverse as crowded Ix^ad-like lenticles, showing next the base 

 a tendency to connect in trans\-ei'se, more or less irregulai' rugtp. ?]htra 

 barely twice as long as broad, with deeph' and sharplx' impi-essed, rather 

 coarse stri:v, having more or less distinct longitudinal punctures scarcely 

 widening the stria-; interspaces flat or scarcelv arched, with distaiU, verA' 

 faint, minute jiuncta. Li-gs prett^' long, with stout clavate femora and 

 slender tibia'. 



Length, excluding rostrum, D-ll-r)"""; rostrum, o-S"""; height, 4r)"""; 

 breadth of thorax, 5""; of l)ase of elytra, (i""". 



'^riiis is the largest of our fossil species. 



Florissant, Colorado. Three si)ecimens, Nos. 7324, 8528, 112(i3. 



This species is dedicated to ( !apt. C. E. Dutton, U. 8. Army, my hon- 

 ored colleague on the U. S. (leological Survey. 



Ba1,AMNUS FLEXIROiSTRIS. 



in. VII, Fig. ;». 



Form moderately stout; the head and prothorax longer in pro]iortion 

 to the elytra than in the other species. Head not short, broad, and large, 

 transversely microscopically striate behind the eye; eye very large, trans- 

 verse, broad ovate, separated from the front margin of the prothorax by 



