402 CALIFORNIA ACADEMY OF SCIENCES. 



The vestiture of the upper side consists of very short 

 black hairs arising from the punctures. This species is 

 allied to rujivejitris Bates from Nicaragua, but differs in 

 its almost smooth thorax. 



Ophistomis is barely separable from Leptura, the only 

 character being the prolongation of the head into a beak. 



Southern California. El Taste. 



CCENOPCEUS NIGER n. sp. 



Form of Palnieri, black shining, the pubescence ex- 

 cessively fine, short, black. Antenna? black, joints three 

 to seven, annulate with white. Front sparsely punctate. 

 Thorax broader than long, angulate at the middle, sides 

 in front oblique, behind the angulation forming a cylin- 

 drical constriction, surface with coarse punctures along 

 the apex and base, very few at middle. Elytra coarsely, 

 closely and deeply punctate, near the apex much smoother. 

 Body beneath extremely finel}' pubescent. Length, .67- 

 .75 inch; 17—19 mm. 



This species differs from Palnicri in the coarser and 

 closer elytral punctuation and by the absence of any or- 

 namentation by pubescence either above or beneath. 

 The two specimens before me are females and have the 

 last ventral slightly emarginate, as in Palmeri . 



El Chinche 2,000 feet. 



Peritapnia nov. gen. 



Middle coxal cavities closed externally, the anterior 

 slightly angulate as in Tapina. Middle tibia? with a sinus 

 externallv near the apex. Claws divaricate. Front ver- 

 tical, broad, the antenna widely separated at base. Head 

 similar in the sexes, not alate. Antenna? longer than the 

 body in both sexes, one-half longer in the male, joints 

 not ciliate, first joint conical, rather stout, second small, 



