88 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 
LEPYRUS  Germar. 
A boreal genus, found in both worlds, with a very limited number of 
species. North America possesses three, mostly found north of our borders 
and in the western half of the continent. it has never been recognized 
until now among the fossils, and our species from Green River is~retcrred 
here with much doubt. 
Lepyrus? EvICTUS. 
Pl x, Wig 10: 
A single specimen and its reverse show an elytron and a portion of the 
abdominal segments, the latter in all respects resembling Lepyrus. The 
elytron has the form and general appearance of that of LZ. colon Gyll.; the 
striz, however, are separated by equal intervals, and the interspaces are 
feebly convex and not flat, but again are similarly subrugulose, and the 
depth and breadth of the striz are similar, as also their union posteriorly 
with one another. 
Length of elytron, 65™; breadth 2°25™". 
Green River, Wyoming, from the bluffs behind the town. One 
specimen, Nos. 733 and 862, U. S. Geological Survey. 
LISTRONOTUS Jekel. 
A New World genus with tolerably numerous species in North America, 
mostly found east of the Rocky mountains. <A single species is found in 
the Green River Tertiaries. 
LIsTRONOTUS MURATUS. 
Listronotus muratus Scudd., Tert. Ins. N. A., 474, Pl. vii, Fig. 23 (1890). 
No additional specimens have been found. 
Green River, Wyoming. Dr. A. 8. Packard. 
Tribe HYLOBIINI. 
This tribe is fairly well represented in the European Tertiaries, ten 
species being recorded of three genera—Hylobius, six species from Aix, 
Rott, Corent, and Diirnten (the latter Pleistocene); Plinthus, two species 
