CALANDHID-E— OAriANDHlN.i:— SIMIHNOIMIORIXI. 14<) 



as hroad as tlie l)ast^, tlu' siirt'acc aiii>areiitly t'aintK pmictate. Klvtra 

 teniiinatiii<^ above the middle of the tliird alxloniiual segTnent, regularly 

 striate, the striae rather l)roa<l, feeble, and iinj)uiictate, the interspaces 

 slightlv rougheuetl. 



Length, excluding snout, ;)i{f)"""; elytra, fj-SS"'"'; breadth at base of 

 elytra, 3-3;"V""'; greatest breadth, 4°"". 



Florissant, Colorado. ( )nt' specimen. No. 14438. 



ORYCTORHINUS {opvurd^^pi?) gen. no v. 



The general appearance of this insect, with its long metastemum, 

 throwiiig the insertion of the hind legs well behind the middle of the body, 

 makes it clear that it })elongs to this family. Its great size, and the exposure 

 of the pygidium, bring it into the subfamily ("alandrina', and the shape of 

 the mesothoracic and metathoracic epimcra reipiircs that it should l)c refeired 

 to the Sphenophorini. That it can not be referred to any existiug genera 

 of this group — at least any legarding which 1 liaxe been al)le to obtain 

 infoiTTiation — is clear; for thougli the mesothoracic epimera are externally 

 truncate, they are narrowed and rounded at the outer antei'ior angle, much 

 reducing the breadth of the truncation, and, besides, the club of the antennjt 

 is oval and not wedge-shaped, in both features showing a decided affinity 

 to the Calandrini. The antenn;c are unusually small and slender, the entire 

 length of the funicle and clul) combined being hardh more than twice the 

 width of the rostrum, and the scape being no longer than the distance of 

 the insertion of the antennfe beyond the base of the rostrum. The anterior 

 coxae are separateil b\- a little less than halt' tlic width of the coxal cavities, 

 that is, not very narrowly; the mesothoracic coxa' bv a little less than the 

 entire width of the coxal cavities; and the metathoracic cox;v by a very 

 little more, a feature which appears to be quite exceptional. 



I know of ojdv a single species, from Florissant. 



OeYCTORHINUS TKNl'IKOSTRIS. 



PI. XII. Fig. 10. 



A large species, one of the largest of the Hln'nchophora, represented 

 by a single specimen presenting a dorsal or Ncntral aspect, both surfaces 



