<S4 TERTIARY COLEOPTERA OF NORTH AMERICA. 



but otherwise the front is truncate; base verv gently convex, the outer 

 uncles gently rounded; the sides are narrowly margined or the margins 

 thickened as in allied genera, but they are entire and nowhere denticulate: 

 surface covered with minute not crowded nor prominent granulations. 

 Elytra near base a third as wide again as the base of the thorax, the sides 

 parallel, the shoulders abruptly rounded, with sculpturing similar to that of 

 the thorax but less pronounced; their tips are broken in the only specimen 

 known, but they are evidently at least half as long again as the head and 

 thorax together and not much more than that. 



Length of fragment, 5 mm.: probable complete length, 5.2 mm.: of 

 antenna?, 1.4 mm.; breadth of head, 1.2 mm.; of thorax, 1.7 m.; of elytra, 

 2 mm. 



Florissant, Colorado; one specimen, No. 1257. 



PARANDRITA LeCoute. 



A monotypic genus, occurring in Arizona and California. The only 

 fossil species is the one here recorded from the Oligocene deposits of 

 Wyoming; but Dr. Forster of Mulhouse informs me by letter that he has 

 recognized the genus in deposits of about the same age at Brunstatt, Alsatia. 



PARANDRITA VESTITA. 



r,;ni<li*'it<i vestita Scudd., Tert. Ins. N. A., 501-502, pi. 7, %. 41 (IS'.ni). 

 (ireen River, Wyoming. 



DERMESTID^B. 



Four species of this family, of three different genera, have been found 

 in the European Tertiaries, in amber, and at Oeningen and Sal/hausen. A 

 species belonging to one of the genera recognized in Europe occurs in the 

 ( tligocene of Colorado. 



ATTAGENUS Latreille. 



A widespread genus, moderately rich in species, of which only four or 

 five occur in N'oitli America. 'Two fossil species have been found in the 

 early Tertiaries, one in (lermanv, the other in Colorado. 



