NORTH AMERICAN COLEOPTERA. 243 



PHILYDRUS Sol. 



The remainder of our species belong to this series. One only is 

 peculiar to California, the others are Eastern, although one-half of 

 them extend in their distribution across the continent to California. 



The species may be arranged in the following manner : 



Prosternuni distinctly cariiiate iiebtilosiis. 



Prosteraum not cariuate. 



Mesosternal lamina very feeble oeliraceiis. 



Mesosternal lamina well developed and with a distinct angular projection. 

 Anterior claws of male not distinctly toothed, although with a basal angula- 

 tion : piceons species 2. 



Anterior claws, at least, well toothed in male; species more or less testaceous 



(except consors) .3. 



2. — Subdepressed species, sides of elytra gradually obliquely descending ; basal 

 marginal line of thorax always distinct; claws of male scarcely 



broader at base perplexus. 



Transversely very convex, sides of elytra almost vertical ; basal marginal 

 line extremely indistinct; front claw of male slightly angulate at 



base ciiK'tU!^. 



.3. — The front (or inner) claw of \anterior tarsus of male alone toothed. 



Entirely piceous, transversely very convex, sides nearly vertical ; large 



species coiisors. 



Brownish testaceous, head alone piceous; broadly oval, sul)de]iressed 



.species caliroriiicus. 



At least one claw on each tarsus of male toothed. 

 Head more or less piceous. 



Thorax with large discal piceous space Huiniltoiii. 



Thorax entirely testaceous (lifTiisui^. 



Head and entire upper surface testaceous reflexipeiiilis. 



The species of this genus are peculiarly distributed. Of those 

 l)elonging to the section Enochrus, two are restricted to the Pacific 

 coast region (carinatus, cuspidatus), the third (fucatus) is from the 

 adjacent regions of Utah and Arizona. Of Philydrus proper but 

 one { calif ornicus) is restricted to the West coast, all the rest may be 

 considered Atlantic region species, although several extend across 

 the continent to California and Oregon. 



, I*, carinatus Lee. — Oblong oval, slightly narrower in front, pitchy black, 

 shining, sides of thorax sometimes a little paler, surface comparatively coarsely 

 and closely punctate, the elytra with the usual series of coarser punctures, in 

 which, however, the punctures are few. Thorax with an arcuate row of coarse 

 punctures which begins near the front angles, extending toward the middle, a 

 second series extending transversely inward from the middle of the lateral mar- 

 gin. Body beneath black. Legs black, the tarsi above pale. Length .20 inch. ; 

 5 mm. PI. iii, fig. 7. 



