Horn.] 444 [ Sep . J9 



Widely distributed but not common, occurs in Pennsylvania, District 

 of Columbia and Nebraska (Ulke). 



Riiyncolus Germ. 



Rostrum sligbtly longer than the head, robust, not or very feebly arcu- 

 ate. Antennae robust, scape unusally short, not impinging on the eyes, 

 joints of funicle transverse, club not very abruptly formed. Anterior 

 coxae distant. 



Our species are all of moderately elongate, sub-cylindrical form, and 

 are distinguished in the following manner : 

 Anterior coxaa distant, as widely separated as the diameter 

 of the coxal cavity. 

 Form linear, body beneath sparsely punctured ; lateral 



striae entire protractus. 



Anterior coxae not widely separated, presternum frequently 

 lineai". 

 Funicle of antennae very stout, second joint very short, 

 joints 2-7 very transverse. 



Elytra deeply striate, punctures coarse and serrate oregonensis. 



Funicle moderately stout, second joint at least as long as 

 the third, joints 2-7 moderately transverse ; elytra 

 feebly striate. 

 Rostrum slightly flattened, more or less sulcate. 



Species .14 inch ; first two ventral segments very 



densely and coarsely punctured brunneus. 



Species .10 inch; first ventral very sparsely punc- 

 tured, second nearly smooth dorsalis. 



Rostrum convex, not sulcate. 



Species .08-.10 ; first two ventral segments with coarse 



sparse punctures annularis. 



R. protractus, n. sp. 



Form slender elongate, piceous, moderately shining. Rostrum nar- 

 rower than the head, and slightly longer, surface moderately punctured, 

 feebly convex, not sulcate. Eyes moderately prominent. Funicle of 

 antennae moderately stout, second joint equal to the third. Thorax 

 slightly longer than wide, narrower in front than behind, sides very 

 feebly arcuate, base slightly narrowed and feebly arcuate, surface moder- 

 ately convex, sparsely and not coarsely punctured. Elytra broader than 

 the thorax, and more than twice as long, sides parallel, slightly nar- 

 rowed to apex, surface moderately convex, discal striae nearly obsolete, 

 lateral striae more distinct and entire, striae moderately punctured, discal 

 intervals flat, transversely wrinkled, lateral intervals slightly convex. 

 Body beneath sparsely punctured. Anterior coxae distant. Legs rufous. 

 Length .10 inch ; 2.5 mm. 



Easily known by its more slender form, distant front coxas and the 

 entire lateral striae. 



Occurs at Fort Tejon, California, under oak bark. 



