476 TERTIAliY INSECTS OF NORTH AMERICA. 



accidental, no such protuberance existing. The general appearance is very 

 similar to that of our common species of Tanymecus. The head and beak 

 combined are a little shorter than the thorax, and the eve is circular, 

 removed by less than half its diameter from the middle of the front border 

 of the prothorax and but little narrower than the tip of the rostrum. The 

 head and rostrum appear to be nearly smooth, the prothorax to be coarsely 

 and somewhat transversely rugulose, and the striae of the elytra to be coarse, 

 with large and deep punctures, which grow smaller and shallower in the 

 apical half All this is shown only in reverse, the single specimen being a 

 reverse. 



Length, G.o"""; of head, including rostrum, 1.5°""; of pronotum, 

 1.6°"" ; of elytra, 4'""' ; breadth of thorax, 2'""'. 



Green River, Wyoming. One specimen, No. 91 (Dr. A. S. Packard). 



OTIORHYNCHUS Germar. 

 Otiorhynchus perditus. 



PI. 8, Fig. 25. 



Oliorhynchus perditus Sciidd., Bull. U. S. Geol. Geogr. Surv. Terr., II, 84 (1876); IV, 766 (1878). 



A single specimen, showing a side aspect, differs from the living species 

 of Otiorhynchus, with which I have compared it, in not having the prothorax 

 conspicuously smaller than the body behind it. The head is withdrawn 

 into the prothorax, almost to the hinder edge of the eyes ; the snout is short, 

 stout, slightly curved, bluntl}" rounded, and rather tapering than enlarged 

 at the tip, not quite so long (measuring from the front edge of the eyes) as 

 the length of the pronotum ; the eyes are rounded, subtriangular, with a 

 diameter equal to half the width of the snout, the central facets with a diam- 

 eter of 027™" ; the antennal scrobes are twice as long as broad, commenc- 

 ing at the middle of the snout and extending two-thirds the distance thence 

 to its tip. The jirothorax is equal, nearly as long as high, not tumid, rugu- 

 lose. The elytra, which are not elervated at base above the prothorax, are 

 simple, not very tumid, provided with about eight longitudinal slender 

 rows, 0.3'"'" apart, of low, raised, rounded points, nearly as distant from one 

 another as those of contiguous rows ; midway between each of these rows 

 is a very inconspicuous dull ridge. Fragments of the legs remain, which 

 agree as far as they can be made out with the same parts in Otiorhynchus. 



