North American Rhynchopliora, 259 



declivous area which is glabrous and scarcely impressed; scrobes rather 

 large, distant, nearly parallel, vanishing at slightly less than their own 

 length from the eyes; antennae rather robust; scape nearly straight, 

 scarcely attaining the prothorax, about as long as the funicle; first 

 joint of the latter nearly as long as the next two together, seventh dis- 

 tinctly longer than the sixth. Prothorax slightly wider than long; 

 sides broadly and distinctly arcuate nearly throughout the length, 

 convergent and nearly straight near the apex; base transverse, slightly 

 wider than the apex; the latter broadly, feebly, and subangularly 

 emarginate, and fringed with very fine scales; disk convex, rather 

 finely and densely, but somewhat unevenly punctate, finely setose. 

 Elytra oval, inflated, convex, more than twice as wide as the prothorax, 

 widely and gradually inflexed beneath, one-third longer than wide, 

 rather broadly and evenly rounded behind from above; sides feebly 

 arcuate; disk not tumid on the suture; the latter obliterated by the 

 squamose vestiture, finely striate; striae finely and distantly punctate; 

 intervals feebly convex, with very uneven rows of fine whitish erect 

 setae which are rather dense and very distinct. Abdomen narrow and 

 rather strongly acuminate. Length 6.0 mm. 



California (Napa Co. 2 ; Marin Co. 2). 



The scales are small and distinctly less dense than in the 

 other species here described. This species is, moreover, aber- 

 rant in its short antennal scape, more distant and parallel 

 scrobes, more oval prothorax, its almost perfectly oval elytra 

 which are more broadly inflexed, and in its narrow abdomen. 

 The pattern of elytral ornamentation is also different, the 

 posterior transverse band not being broadly and posteriorly 

 arcuate, but strongly angulate. In all essential points of 

 generic structure it, however, appears to find a very fitting 

 place in the present genus, the two additional terminal spurs 

 of the posterior tibiae being distinct. The claws are not strongly 

 divergent, but free as in the other species. The scutellum is 

 minute and triangular, but distinctly visible between the bases 

 of the elytra. 



STEXOPTOCHUS n. gen. (Otiorhynchini). 



This genus may be characterized in few words as follows: — 



Claws connate at base. First ventral suture straight; second segment 

 shorter than the third and fourth together. Articular surfaces of the 

 posterior tibiae glabrous. Beak longer than the head, feebly dilated at 

 apex; scrobes superior, deep, short, vanishing at slightly more than 

 their own length from the eyes, very feebly convergent. Antennae 



