criM ri.ioMK.i;. H5 



UiKiii luiiuiitaius, \Vf8t(.TU Coltinidn, tVoiii the ricla-st sluilcs at tlic .siiiii- 

 mit (if tilt' bluff at the head of East Salt creek. (>ue speeiineii, No. 105"), 

 U. 8. Geiiloyieal Survey. From the saiiic Ltcalit}' iii slightly lower Ijeils at 

 same station. One specimen, No. 1 1 7, U. S. Geolofrical Survey. White I'iver, 

 western Colorado, from the vcrv lowest shales on the .south side of the river 

 opposite Cany<m butte. One specimen, No. 46S, U. S. Geolog^ical Survey. 



Family CURCXJLIONID^^i]. 



( )nc hundred, species, or slightlv more than one-half of the Tertiary 

 Rhvnchopliora of North America, Vjelon<^ to the Curculionidie, but this ]ire- 

 ponderance is a little less than in the recent American fauna where the family 

 holds a still more important place; and is the more conspicuous from the 

 fact that its numbers are more than four times those of any other familx', 

 while in the Tertiary deposits of the West the Otiorhynchida- have nearly 

 half as nianv species as the Curculionida'. In general, the relative 

 numerical proportion of the subfamilies is similar to what obtains in North 

 America at the present day, or at least the vast proportion of the species 

 belong as now to the Curculionina^ ; but the Alophina' possessed then a far 

 greater i)ercentage (eight times greater) than now, while the Balanina^ w.re 

 also relativelv iiiucii more numerous, the percentage of species to the whole 

 iiiiinlxr i>\' the family being then nearly five times greater; the loss fell on 

 the Curculioninic and to a small extent on the Apionina', while the Tthyce- 

 rinae, now represented l)v a single species, are not known to have i'xiste<l. 



In Euro])e, if we regard the species of IIip])orhinns as Alophina-, the 

 i-elative jtreponderance of the subfamilies of fos.sil Curculionid;u approaches 

 nearer and indeed verv closcdy to the conditi<in of things in America to-day, 

 tor more than four-fifths of the species are to be referred to the ( "urculionina', 

 though the .\liipliina' are still nearK three times in excess of their present 

 American proportion, and the Sitonin;e have an even slightly greater icla- 

 tive preponderance. As in Ameri<a, all the subfamilies are present excepting 

 the Ithvcerina'. The total number of species, strangely enough, is <'xactly 

 the same as in America. 



.MON XXI- 



