1873.] 44J [Horn. 



more densely clothed with white pubescence. Head moderately densely 

 punctured, densely clothed with white pubescence except on the occiput. 

 Eyes moderately distant. Thorax cylindrical, one-fourth longer than 

 wide, sides very feebly arcuate, at base scarcely sinuate, convex, moder- 

 ately coarsely and densely punctured and clothed with white pubescence, 

 median line slightly elevated, smooth and shining-. Scutellum densely 

 clothed with white. Elytra broader at base than thorax, oblong, sub- 

 cylindrical scarcely broader behind, surface densely clothed with white 

 recumbent pubescence (sparsely along the suture) and with four narrow 

 glabrous lines on each elytron, the pubescent spaces moderately densely 

 and finely punctured, the glabrous lines -with a row of moderately fine 

 and distant punctures each bearing an erect black hair. Body beneath 

 moderately densely punctured, sparsely pubescent and with a dense 

 narrow line of white pubescence along the side of the body extending ti> 

 the tip of the abdomen. Legs sparsely pubescent with recumbent hairs 

 with erect hairs intermixed. Length .2G-.30 inch ; 6.5-7.5 mm. 



Beneath the pubescence the entire body is black and shining. The 

 femora have a minute tooth. Evidently allied to 0. pelliceus Rosen. 



Three specimens from Owen's Valley, California. 



O. Ulkei n. sp. 



Body black with very faint tinge of bronze. Rostrum vertical, sparsely 

 punctured at tip, obtusely carinate, on each side bisulcate, sulci coarsely 

 punctured and nearly confluent opposite the scrobe, surface sparsely 

 pubescent. Plead very coarsely and deeply and moderately densely punc- 

 tured, sparsely cinereo-pubescent. Thorax cylindrical, at basal third 

 moderately sinuate, surface convex^ very coarsely and deeply and sub-con- 

 fluently punctured on the disc, less densely on the sides, moderately 

 densely pubescent, a narrow line along the middle and sides paler, pubes- 

 cence arranged in small tufts and composed of dark cinereous and white 

 hairs intermixed and with erect white hairs very sparsely placed, directed 

 anteriorly. Scutellum pubescent with white. Elytra oblong oval, sides 

 slightly compressed, surface with rows of moderate punctures replacing 

 the stride, two lateral rows striate, intervals sparsely punctured, each punc- 

 ture with a tuft of recumbent hairs as on the thorax and with short erect 

 white hairs sparsely placed, pubescence along the suture paler. Body 

 beheath and legs black,' shining, sparsely punctured and pubescent simi- 

 larly to the upper surface but paler. Femora with a minute tooth. Length 

 .26 inch ; 6.5 mm. 



This species is so distinct from any other in our fauna that it is hardly 

 necessary to add to the above description. The genei-al aspect of the 

 species is that of being moderately densely pubescent. The pubescence 

 arises from the sparse punctures of the intervals and forms fan-like tufts, 

 always recumbent composed of darker cinereous hairs intermixed with a 

 few white ones. 



One specimen in the cabinet of Mr. H. Ulke, by whom it was obtained 

 from Lower California. 



a. p. s. — vol. xiii. 3e 



