CURCULIONID4#—CU RCULIONIN 4—HYLOBIINI. 91 
PACHYLOBIUS DEPRADATUS. 
p) ‘a y © 
Pl x Hiee 12. 
This species is also represented only by single elytra, which differ from 
‘the same parts in the last species only in being larger, slenderer, and of a 
coarser sculpture. They are almost three times longer than broad, with 
otherwise of quite the same shape as in P. compressus. The strive are the 
same as there, fading in the same way, but the puncta are heavier and 
coarser, and there is a greater difference between the base and apex, since 
they vanish completely posteriorly. 
Length of elytra, 6°6—7:8"™; breadth, 2:3-2:8"™. 
Roan mountains, western Colorado, from the richest beds at the crest 
of the ridge opposite head of East Salt creek. One specimen, No. 1043, U. 
S. Geological Survey. From near the same beds. Three specimens, Nos. 
23, 59, 97, U.S. Geological Survey. 
HYLOBIUS Germar. 
A genus widely spread though not very numerous in species, found 
mostly in the boreal parts of the northern hemisphere and living upon 
coniferous trees. Three species are found in North America and occur only 
east of the Rocky mountains, but from Canada to the Gulf. Half a dozen 
species have been described from the European Tertiaries, three from Aix, 
and one each from Rott, Corent, and Diirnten, the latter in an interglacial 
deposit where only an elytron was found. In America we find three species, 
one at Florissant, somewhat resembling the rather imperfect Corent 
species, but with a fuller thorax, and two from Green River, which do not 
appear to approach any of the European fossils very closely. 
Table of the species of Hylobius. 
Biverollyatwiceisy nig has yl OMe asec ate ate rets ce istl(n!e}-lofosinolaisiere siete af<('=% provectus. 
Eye much less than twice as high as long. 
Elytral strive delicate, very faintly and finely punctate; beak slender. .packardii. 
Elytral striz less delicate, distinctly and deeply though finely punctate; beak 
LOUD ces setae’ telerevn Snis co sores hea ns Sieis wetevetols ia tes a]eiete eres o:ahers ‘sialeieie mately oterers lacoei, 
