WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT. 430 
front margin seems to have nearly or quite concealed the head during 
life. The sculpture is very fine throughout but in places the elytra 
show traces of punctulate striae. The pronotum is margined at the 
sides. While I have no specimens of recent Chelonarium for compari- 
son, I think that the reference to this genus is fairly safe, since, in all 
visible characters, the agreement is close to the description of LeConte 
and the figure of Lacordaire (Genera des Coléoptéres, Atlas, Plate 24, 
fig. 4.). This correspondence extends even to the crimping of the 
pronotal base as will be seen by examining the cited figure with a 
magnifying glass. Chelonarium is found in Florida and Central 
America and the occurrence of this fossil adds another distinctively 
southern form to the Florissant fauna. 
PARNIDAE. 
PSEPHENUS LUTULENTUS Scudder. 
evidently the counterpart of the one figured by Scudder. 
Dryoprs ERuUPTUS Wickham. 
Two specimens, No. 2,463, 2,464 (No. 6, 8,329 S. H. Scudder Coll.), 
| 
One specimen, No. 2,462 M. C. Z. (No. 11,659 S. H. Scudder Coll.), 
| 
| 
| 
| appear to belong here. 
} . 
| Dryops TENUIOR Wickham. 
| 
! 
| 
| 
A single specimen, No. 2,465 M. C. Z. (No. 3,756 S. H. Scudder 
| Coll.) is in fairly good condition. It does not show the lines of elytral 
punctures which are faintly indicated in the type, but agrees in other 
| characters. 
| 
DASCYLLIDAE. 
PROTACNAEUS, gen. nov. 
_ Form similar to that of Acnaeus or Ectopria, short, oblong ovate. 
Head of rather large size, antennae, in one sex at least, filiform. An- 
terior coxae contiguous. Middle coxae rather small, oblique, distinctly 
