148 TEETIARY KHYlSTnornOEOrS OOLEOPTEKA. 



There can, lujwever, be int dniibt of their I'kise rehitiouship to Scypho- 

 pliorus, tlie Hviiifi' species of which are ])arasitic on Yucca. I can not dis- 

 cover in literature any indication that Yucca has ever been found fossil 

 anywhere.' Both the species occur at Florissant, and may perhaps be 

 regai'ded as characteristic of the Lacustrine f^iuna. 



Table of flic sju'cies of Scyphophorus. 



Thorax broadest bcyouil the l);ise, half as h>iig as tlie abdomen latns 



Thorax broadest at the base, only onethinl as long as the abdomen fossionis. 



.SCYPHCJPHORUS L.EVIS. 



PI. II, Fig. 26. 



Head smooth; rostrum as seen from above extending- as far in front of 

 the head as the length of the head, with no basal enlargement. Thorax 

 large, scarcely so broad at base as the elytra, tapering, with rounded sides, 

 narrowing from the middle of the basal half and therefore much more coni- 

 cal than iit living species, the surface rather coarsely, faintly, and distantly 

 punctate. Elytra regularly striate, but as if made by a, series of confluent 

 longitudinal punctures, the reverse showing a faintly broken ridge, the ap- 

 pearance of which is exaggerated on the plate; interspaces perfectly smooth 

 without trace of punctures. Last (exposed) abdominal segment moderately 

 coarsely and closeh' inmctate. 



Length, excluding snout, ll-f)"""; of elytra, rvS'""'; breadth, at base of 

 elytra, 5""". 



Florissant, Colorado. One specimen, No. 11779. 



Scyphophorus fossionis. 



PI. VII, Fig. 13. 



Body long oval, largest in the middle of the elytra. Head apparently 

 smooth; rostrum, as seen from above, two-thirds as long as the thorax, not 

 only with no basal expansion, but apparently slightly larger apically than 

 basally; club of antenna^ very short, stout oval, the three final joints of the 

 funicle subequal, short, subpyriform, together a little longer than the club. 

 Thorax not very large, the sides continuing without interruption the forward 

 tapering of the body, and tapering, therefore, from the base, the apex half 



' But see Third Annual Report Missouri Botanical Garden, 1892, p. 160. 



