OTIOimYNCH 11)^5 — OPHUYASTINI. 43 



fourtlis as loiiir as the protliorax. Tlie lattor viewed from above nnuh 

 broader than long, tniiu-ate, and of about equal width at each extreniitv, 

 the sides full, the surface rather coarsely and very shallowly punctate. Elytra 

 about two and a half times longer than broad, finely, sharply, and deli- 

 cately, but not deeply, imuctato-striate, the inters))ace.s feebly rounded and 

 apparently sparsely pilose. Legs short, the tenmra rather bi-oad, the tilii.e 

 rather stmit and stiaii^ht. Abdomen rapidly tapering posteriorly, feeblv 

 anil minutely punctate, the suture between the fir-t ami .second segments 

 (either of which is as long as the third and fourth together) slightly angu- 

 late or ciu'ved, the convexity forward. 



Length, excluding rostrum, 3-2o™"'; rostrum, ()-5"""; elytra, 2-2r>"""; 

 breadth of thorax, 1-2""". 



AVhite river, Utah, uext the Colorado line, from the very highest parts 

 of the buttes. Two specimens, Nos. 898, '.idl, U. S. Geological Survey. 

 Roan mountains, Avestern Colorado, near the richest beds at summit of bluffs 

 at head of East Salt creek. One specimen. No. 9G0, U. S. Geological Surve\ . 



Phyxelis ekadicatus. 

 PI. viii, Eigs. 17, 18. 



This species, which, if the specimens here collected really belong to- 

 gether, varies considerably in .size, differs from the preceding, /'. i'rit/orafi(s, 

 nuiinly in the greater slenderness of the elytra and their coarser and sharj)er 

 markings. In the largest the elytron is about two and a third times longer 

 than Ijroad, with nearly straight sutural margin, very strongly arcuate outer 

 margin, and subacuininate ajjcx. There are ten punctureil stria-, the stria' 

 rather shallow and not sharp, and the interspaces smooth and broadly 

 arched, but the puncta are rather coar.se, toleraljly deep, circular or niort- 

 or le.ss longitudinal, and heavier on the basal than the a|)ital half of the 

 el\ troll. 



The specimens are fragmentary and will hardly bear further description. 

 In one the abdomen is clearly shown and it resembles that of the preceding 

 sj)ecies in every particular exce])t that it is more Iduntly roinided behind. 



Length of elytra, 21-41"""; width of .same, UTo-ls' 



