5S TERTIARY RHYNCHOPHOEOTTR COLEOPTEEA. 



more than two ami a third times in the leiiyth; th(^ form does not differ from 

 that of the pivcediug- species. Nine or more series of circuhxr puncta can 

 be seen, the piiueta of moderate .size and somewhat impressed, separated 

 from tlieir neighbors in the same row by rather less than their diameter, but 

 from tliose in the neighboring row by very much more than that. Inter- 

 spaces smooth and flat, or gently arched. 



Length of elytra, 3;1"""; breadth, 1 ;]""". Nont^ are (piite perfect, and 

 the measurements may not represent the dimensions \\ith exactitude. 



White river, (Jolorado, from the lowest shales. ( )ne sj)ecimen, Nos. 4r)2 

 and 454, U. S. Geological Survey. White river, Utah, from the very highest 

 shales on the northern Inittes next the Colorado line. One specimen, No. 

 8'J7, U. S. Geological Snrvey. 



PlIYLLOBIUS AVUS. 



PI. IX, Fig. 17. 



Single elytra are all that are known of this species, tliongh one speci- 

 men shows part of the abdomen, ])ut too vaguely to lie of any aid. The 

 elytron is about two and two-fifths longer than broad, very gently vaulted, 

 the apex somewhat acuminate. Eight series of puncta can be traced, slightly 

 less distant from one another the farthoi- they are b-om the straight sutural 

 margin, the pmicta very small, sharply but not deeply impressed, circular 

 or with a slight longitudinal tendency. Interspaces flat and smooth, the 

 iriiddle line distinctly elevated as a slight and slender carina. 



Length, 3"'"; breadth, 1-25™"'. 



It is possible that the specimens from Green river do not l)elong here; 

 the\- arci certainly of a. broader fui-in than the typical specimen and more 

 o])scure. 



White river, Utah, from the higliest lieds on the northern buttes next 

 the Colorado line. One specimen. No. TOL U. S. Geological Survey. 

 Green River, Wyoming, from tlie liutti^s behiml the town. Two specimens, 

 Nos. 7ar,, 9S0, U. S. Geological Sui-vey. 



SCYTHROPUS SchonheiT. 



A genus with relatively few species found in tlie northern hemisphere, 

 and in al)out e(pial mnnbers in the Old and New World, though our species 



