NORTH AMERICAN COLEOPTERA. 103 



elytra scarcely wider than the thorax, and the two basal joints of the 

 antenna) pale, while they are totally black in sanguinoleutus. 

 Occurs in Washington Territory and Nevada. 



P. grandicollis n. sp.— Form elongate, parallel, black, shining; elytra 

 slightly bronzed ; antennfe piceous, nearly as long as the head and thorax, joints 

 5-10 as wide as long; head sub-quadrate, hind angles distinctly punctured ; thorax 

 very little wider than the head, slightly longer than wide; sides nearly straight, 

 very feebly convergent anteriorly, slightly sinuate when viewed laterally, dorsal 

 punctures large, deep and equidistant; elytra very little wider than the thorax, 

 conjointly nearly square, moderately coarsely and rather densely punctured and 

 sparsely pubescent; abdomen as coarsely punctured as the elytra but less densely, 

 the penultimate segment more closely punctured than the others; beneath more 

 closely and rather more densely punctured than above, sparsely pubescent. 

 Length .24 inch; 6 mm. 



Male. — Anterior tarsi moderately widely dilated; last ventral segment with a 

 triangular emargination surrounded by a narrow gutter; penultimate segment 

 with a small triangular notch at middle. 



Female. — Anterior tarsi slightly dilated; last ventral entire. 



For this species I adopt the name under which it was returned to me 

 some years ago by Mr. Fauvel. In a collection kindly loaned me by Mr. 

 E. A. Schwarz the same name is appended to a species formerly labeled 

 Thf'venefi by Fauvel. As the two species have been widely distributed 

 by me under the names as used in the present paper I prefer to retain 

 them. 



Occurs in various parts of California, and as far north as Vancouver. 



P. puberulnsn.sp.— Form elongate, black, shining; elytra slightly bronzed ; 

 antennre nearly as long as the head and thorax, piceous, paler at base, the joints 

 all longer than wide; head sub-quadrate, hind angles distinctly punctured ; thorax 

 scarcely wider than the head, longer than wide, very slightly narrowed in front; 

 sides when viewed laterally slightly sinuate, dorsal punctures deep and equidis- 

 tant ; elytra a little wider than the thorax and longer than wide conjointly, very 

 evenly and moderately coarsely punctate, pubescence sparse; abdomen as coarsely 

 punctured as the eh'tra but less closely, shining, iridescent, sparsely pubescent: 

 beneath less coarsely and more sparsely punctured than above; legs piceous or 

 black. Length .18 — .24 inch; 4.5 — 6 mm. 



Male. — Anterior tarsi moderately dilated ; last ventral segment broadly trian- 

 gularly emarginate, the emargination surrounded by a gutter; penultimate ven- 

 tral vaguely emarginate at middle of posterior margin. 



Female. -Anterior tarsi slightly dilated ; ventral segment entire. 



This species is one of a small series which closely resemble each other 

 superficially, and while they may be distinguished quite readily by com- 

 parison, the sexual characters of the male afford the only reliable charac- 

 ters for separation. 



Occurs in California and Arizona. 



TUANS. AMKR. KNT. SOC. XI. (49) JUNE, 1884. 



