K H Y NC H I T 1 1 ).E — I S( )T 1 1 E I N .E — ISOTl lElN 1 . 11) 



prominent ru^in, tnllowcil Ix-ncatli hy a currcspondin'j- siilcation, a<l(liii;,'- to 

 itsdistinctiu'.ss, t;nlinj^ out l)efore attaining' the posterior inarj^in. Elytra with 

 .similar, but even larger and sometimes more distant circular g-ranules, show- 

 ing a tendency, especially on the sutural half, to a longitudinal arrangement; 

 a little within the middle of each elvtmn ;in<l parallel to the suture is a deep, 

 straight sulcatioii, scan-el\- fading liefore reaching either extremity of the 

 elvtr4, and another, [xrliaps weaker, originating not very far from the same 

 point and becoming submarginal. 



I^ength of body, including rostrum, 10-11"'"': of i-ostruiii, 2'rt-2'75"'"'; 

 breadth of body, ■2(i-2!)'""'. 



?"'lorissant, Colorado. Four specimens, Nos. 4fi3, 12247 and 1224.S, 

 and from the Princeton collection, Nos. 1.580, 1.847. 



PaLTORHYNCHUS RFX'TIROSTKIS. 



PI. IV, Fig. 8. 



A smaller sj)ecies than the last, with more subdued sculptm-e, heavier 

 anil coarser antenna', and relatively longer beak. Head transversely and 

 regularly corrugate, with a few independent granulations above. Prothora.x 

 not very coarsely, and not prominently graiudate, the surface uniform with- 

 out a lateral ruga. Elytra feebly striate, with scattered dull granulations 

 larger and more distant from each other than those on the jirothorax. 



Length of l)odv, including rostrum, 7'25"'"'; of ro.strum, 2"'"'; height ot 

 body, 3""". 



Florissant, Colorado. 'One specimen. No. 7714. 



P.\LTnKHVNCHrs ? BISULCATIS. 



PI. viir. Fig. 3. 



The imperfection of the specimens does not permit certainty in generic 

 location of this species, and it is placed here only becau.se of the general re- 

 semblance of the surface sculpture of the elvtra, which is somewhat remark- 

 able. One of the .specimens shows onl\ the fragment of an elytron, the 

 otlu'r the dorsal view of the protjiora.x and elytra. Phe |irothorax, not per- 

 fect, is taintlv, distantly, and coarsely punctate, and shows a pair of longi- 

 tudinal stria' close beside the niiddle lin«. The elytra are together about 



