88 TEliTIAEY RnYNOIIOrHOROlTS COLliOPTERA. 



LEPYRUS Germar. 



A boreal genus, found in both worlds, with a very limited nundjer of 

 species. North America possesses three, mostly found north of onr borders 

 and in the western half of the continent. It has never been recognized 

 until now among the fossils, and our species from Greeu River is referred 

 here with nuich doubt. 



Lepyrus? evictus. 



PI. X, Fig 10. 



A single specimen and its reverse show an elytron and a ]iortion of the 

 abdominal segments, the latter in all i-espects resembling Lep}'rus. The 

 (dytron has the form and general appearance of that of L. colon (iyll.; the 

 strii¥, however, are separated l)y equal intervals, and the interspaces are 

 feebly convex and not flat, but again are sinnlarly subrugulose, and tlie 

 depth and l)readt]i of the stria- are similar, as also their union jxistcrioi'ly 

 with one another. 



Length of elytron, G-5"""; breadth 2-25 """. 



Green River, Wvoming, from the bluffs behind the town. One 

 specimen, Nos. 733 and 8G2, U. S. Geological Survey. 



LISTR0N0TU8 Jekel. 



A New World genus with tolerably numerous species in North America, 

 mostly found cast of the Rocky mountains. A single species is found in 

 the Green River Tertiaries. 



LiSTRONOTUS MURATUS. 



Listronotus muratus Scudd., Tert. Ins. ISi. A., 474, PI. viii, Fig. 23 (1890). 



No additional specimens have been found. 

 Green River, Wyoming. Dr. A. 8. Packard. 



Tribe HYLOBIINI. 



This trd^e is fairly well represented in the European Tertiaries, ten 

 species being recorded of three genera — Hylobius, six species from Aix, 

 Riitt, (Jorent, and 1 )iirnten (the latter Pleistocen(-) ; Plinthus, two species 



