DERMESTID^ NITIDULID.K. 85 



ATTA GENUS SOPITUS sp. nov. 

 PI. IX. tig. KI. 



A ra tlier poorly preserved specimen, showing the prothorax and most 

 of the elytra, seems to belong here. It is of about the size of A. jieU'/o I,. 

 The prothorax, from which the head can not be separated, is triangular with 

 rounded angles, the middle of the hind margin produced but rounded 

 apically, the whole surface feebly punctate, but with larger puiicta than in 

 A. HH'f/dfoiDit Fabr. Elytra shaped much as in A. pettio, with well-rounded 

 humeral angles, but proportionally slightly longer than in the modern species 

 and more coarsely punctate. 



Length of body, 4.5 mm.; breadth, 2 mm. 



Florissant, Colorado; one specimen, No. 2141!. 



Only three fossil beetles of this family, belonging- to as many genera, 

 have been found in the early Tertiaries, two in Europe and one in America. 



ANTHEROPHAGUS Latreille. 



A genus containing half a dozen species, equally divided between 

 Europe and North America. A single fossil species is known from 

 Wyoming. 



ANTHEROPHAGUS PRISCUS. 



Antherophagus priseus Scudd.. Hull. U. S. Geol. Geogr. Surv. Terr., II. 7!t-SO(1876); 

 in Zittel, Handb. d. P;da>ont.. (I). II. 799, fig. 1051 (1885); Tert, Ins. N. A., 501, 

 pi. 7, figs. 24, 35 (18HO). 



Green River, Wyoming. 



NITITJTJLID^E. 



Twenty-two species of this family have been found in the Tertiaries, 

 none of them in the Pleistocene. Twelve genera are represented, eight in 

 the Old World and five in the New, one only being common to both. Two 

 of the genera are regarded as extinct, one on each continent. 



