STAPHYLINID^E. 63 



LITHOCHARIS Dejean. 



A cosmopolitan genus, rather rich in species, of which only about half 

 a dozen are known from North America. The only fossils known are two 

 from the earlier Tertiaries at Aix and Florissant. 



LiTHOCHARIS SCOTTII Sp. UOV. 



PI. VII, fig. 16. 



Head of about equal leng-th and breadth, largest just behind the middle, 

 scarcely nan-owing behind, with slightly rounded posterior angles, the base 

 truncate, the surface with scarcely perceptible delicate transverse rugas. 

 Slight traces of the palpi show nothing different from Lithocharis. Antennae 

 reaching to the end of the tegmina, rather slender, scarcely enlarging 

 apically, the joints long, ovate, but none of them greatly larger apically 

 than basally, the second and third joints not stouter than the others (in 

 which the species differs from L. corticina Grav., with which it otherwise 

 best agrees), the fourth to the sixth longest and about two and a half times 

 longer than broad, most of the others about twice as long as broad, the 

 apical joint globose and not enlarged. Thorax slightly broader than the 

 head, subquadrate, the sides slightly convex, all the angles equal and 

 scarcely rounded, the surface apparently smooth, with a few very short, 

 delicate hairs and a faint median carina. I^egs closely resembling those of 

 L. corticina, but shorter, and the tibiae slenderer and scarcely enlarged 

 apically. Elytra considerably broader than the prothorax, longer than the 

 head and thorax together, with well-rounded humeral angles, similarly 

 rounded outer apical angles, squarely truncate apex, a slight sutural stria, 

 and a smooth surface with a slight covering of fine hairs. Abdomen beyond 

 the elytra about as long as the thorax and elytra together, broader than the 

 thorax, but narrower than the elytra, scarcely tapering apically to a roundly 

 pointed apex, the sides margined, and the surface apparently smooth and 

 slightly villous. 



Length, 6 mm.; breadth, 1.6 mm.; length of hind legs, 3.1 mm. 



Florissant, Colorado; one specimen, No. 1.556 of the Princeton museum. 



Named for my paleontological friend. Prof W. B. Scott, of Princeton. 



