526 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



CORYMBITES PROPHETIC US, Sp. HOV. 

 Plate 7, fig. 5. 



Form stout. Head in very poor preservation, finely, regularly, 

 and closely punctate. Antennae wanting. Prothorax at sides punc- 

 tured almost exactly like the head, a little more finely and sparsely on 

 the disk, about one fourth broader than long, sides nearly regularly 

 arcuate, somewhat more suddenly in front, anterior angles slightly 

 acute, hind ones quite strongly so, feebly divergent and carinate. 

 Scutellum oblong. Elytra quite strongly arcuate at sides, apices 

 conjointly rounded, finely striate, striae with distinct but not coarse 

 punctures which are circular or slightly elongate and separated in each 

 series by their own diameters or less. Interspaces broad, flattened 

 or nearly so, finely punctulate and distinctly pubescent. Legs 

 wanting. Length, from front of head to elytral tip, 10.90 mm.; 

 of elytron, 6.55 mm.; of prothorax along median line, 3.00 mm. 



Described from one specimen. 



Type. No. 2,724 M. C. Z. Florissant, Colo. (No. 13,657 S. H. 

 Scudder Coll.). With it is associated, somewhat doubtfully, No. 

 2,275 M. C. Z. (No. 11,282 S. H. Scudder Coll.). Two poor specimens 

 from Station 13 and 13B are in the Museum of the University of 

 Colorado. 



This is quite surely a Corymbites and is of the same general form 

 as the recent C. aereipennis, common in the northern and mountain 

 regions of this continent. The sculpture seems not to have been very 

 different. The size and outline will distinguish it from all the other 

 fossil Florissant species. 



OXYGONUS PRIMUS, Sp. UOV. 



Plate 7, fig. 6. 



Form fairly stout. Head not well preserved, showing no sculpture. 

 Antennae moderately long but the individual joints are not definable. 

 Prothorax stout, suborbicular, the sides strongly rounded, apex and 

 base subequal, prosternal grooves double, somewhat curved, lobe 

 long, front edge quite arcuate and strongly advanced, sculpture fine 

 or nearly wanting. Elytron about four times as long as wide, moder- 



