OTlOKIIYNClllIU-: — OTK )1{I1Y>'C1ILNI. 45 



(>THlRHY\cms IM'.RDITUS. 



Otuirhfinrhus perdifux Sciidd., Itiill. 1". S. Clcol. (Icof,'!-. Siirv. Torr., it, 84 (I87fi); IV, 

 7<itJ (1.S7.S); TcH. Ins. N. A.. 47«-177, IM. Viii, Fi};. Ii5 (18!)0). 



No additional speciiiiciis liavn Im'ou foiiii<l. 



Greeu river, \Vyomiii>r. F. C A. Kiclianlson, S. H. 8cudrler. 



OTIOKllVNClirS SUHTKKACTUS. 



PI. IX, Fig-. S. 



fHosely allied to O. perditus, from which it. differs in its slightly larger 

 size, slightly nioie curved and stouter rostrum, and somewhat differing 

 sculptui-e of the elytra. The rostrum is nearly twice as long as high, con- 

 siderably arcuate, equal, well-rounded at the tip, as much longer than the 

 liead as it is shorter than the prothorax, nearly smooth; the eyes are trans- 

 verse, slightly hroader above than below, about half as long as the breadth 

 of the rostrum. The prothorax is nearly twice as high as long, tapering, 

 and a little tumid, the surface minutely sulirugulose. The elytra are well 

 arched, twice as long as broad, with series of rather feebly punctate, rather 

 heavy striiB, the puncta shallowly impressed and circular instead of being 

 longitudinal as in 0. prrdifus; the interspaces are feebly arched ami deli- 

 cately subrugulose. 



Length, 9"""; rostrum beyond eyes, IT"""; height of same, U-8"""; length 

 of elytra, G"""; height of body, 4""". 



Roan mountains, at summit of bluffs at head of East Salt creek, west- 

 em Colorado. One specimen, Nos. 54 and 133, U. S. Geological Survey. 



OxiORHYNniLs timim;. 



Otiorhynchux dubius Scudd., Bull. U. S. Geol. Geofjr. Surv. Terr., iv, 7()G (1878). 

 Otiorhynchm tumhw Scudd., Tert. lus. N. A., 477, IM. vili. Fig. 1:5 (1890). 



The single original specimen is the only one yet known. 



Green river, Wyoming, from beneath the Fish cut. S. H. Scudder. 



OTIORHVNOIirS KKACCUS. 



PI. IX, Fig. 5. 



A pair of elytra in natural juxtaposition of a l)lackisli brown color 

 They are fully three times as long as l)road, and f(|ual throughout nearly 



