WICKHAM: new MIOCENE COLEOPTERA from FLORISSANT. 463 



The specimen indicates a longicorn beetle of a rather uncommon 

 type of coloration, though approached more or less closely by recent 

 species of various tribes. It seems worth while to give a specific name 

 to the insect on account of its colorational interest. The pattern is 

 almost a copy of that of the recent African Ceroplesis bicincta. 



Elaphidion extinctum, sp. nov. 

 Plate 8, fig. 7. 



Form stout. Head smaller than the prothorax, the jaws fairly 

 strongly projecting, front finely, transversely, subrugosely punctu- 

 late. Eyes not defined. Antennae only obscurely exhibiting the 

 proximal joints, the first stout, second apparently short, third long. 

 Prothorax strongly transverse, sides not perfect but apparently 

 moderately arcuate, surface rather finely but very closely and fairly 

 deeply punctate, the punctures in front of the middle more or less con- 

 fluent with a tendency to form transverse rugae, an impunctate area, 

 probably a callosity, on each side. Elytra bluntly rounded at apex, 

 more finely and sparsely punctate than the prothorax and with scat- 

 tered, short, blackish hairs. The only leg shown is fairly slender. 

 Length, from apex of jaws to that of abdomen, 11.35 mm. ; of head and 

 prothorax, 3.75 mm.; of the right elytron, 6.45 mm. 



Described from one specimen with counterpart. 



Tijpe.— No. 2,582, 2,583 M. C. Z. Florissant, Col. (No. 11,780 

 and 12,034 S. H. Scudder Coll.). 



By allowing some latitude of definition, this may have been an 

 Elaphidion-like form of the same general appearance as the recent 

 E. moestum but with callosities similar to those of the more typical 

 species of the genus. Too little is shown to make the generic reference 

 at all certain. 



Stenosphenus pristinus, sp. nov. 

 Plate 9, fig. 2. 



Form elongate. Head large, longer than the prothorax. Antennae 

 about as long as the entire body, basal joint large, second small, third 

 longer than the fourth which is subequal to the fifth and to the sixth, 

 remainder not definable. The sixth joint seems to show an apical 

 spine but the margins of all the articles are poorly preserved, so that 



