COLEOPTERA OF SOUTHERN CALIFORNIA. 263 



and fourth) elytral interspace, and still more faintly on the fifth interspace 

 behind the middle. Beak a little longer than the head and prothorax in 

 the male, still longer in the female, finely carinate behind the insertion of 

 the antennae. Antennas slender, inserted beyond the middle in both 

 sexes; funicle seven-jointed, second joint of funicle two-thirds as long as 

 the first and equal to the third and fourth together. Prothorax slightly 

 wider than long, narrowed from base to apex, sides nearly straight in 

 basal half, thence more rounded and feebly constricted before the apex; 

 surface densely punctured, the sculpture, however, entirely concealed by 

 the vestiture. Elytra distinctly wider at base than the prothorax, humeri 

 rounded, sides parallel to the middle, striae apparently finely impressed. 

 Legs moderate, front and middle femora armed with a very small, acute 

 tooth; the hind tibiae in the male straight externally, dilated internally at 

 the apex, the dilated portion with parallel sides. Claws with a long, slen- 

 der tooth which is in contact with its fellow at the tip. 

 Length, 2.75-3 mm. 



The species is described from two males and one 

 female beaten from sunflowers, April 20, at Pomona. 



It belongs to the subgenus Cnemocyllus , and should be 

 placed before A. subvittatus, at the head of the group. 



84. Anthonomus tahoensis, sp. nov. 



Elongate-oval, black, legs and beak sometimes entirely or in part reddish 

 brown; antennae rufous, club darker; clothed rather sparsely above and 

 beneath with uniformly cinereous scales; the scales vary a little in form, 

 being somewhat broader on the parapleurae, but they are as a rule sub- 

 parallel and about twice as long as wide, not in the least overlapping and 

 scarcely in mutual contact, so that the color of the derm is not concealed. 

 Head finely sulcate between the eyes, the latter moderately convex, their 

 hind margins slightly free; beak rather long, evenly arcuate, rather densely 

 but not very coarsely punctate in the male, smoother in the female. An- 

 tennae not very slender, second joint of funicle a little longer than the 

 third, the latter subequal to the fourth. Prothorax nearly as long as 

 wide, sides broadly arcuate and quite strongly convergent, feebly con- 

 stricted at apex; surface rather coarsely and closely punctate, strongly 

 shining. Elytra abruptly fully one-third wider at base than the prothorax, 

 sides subparallel in basal two-thirds, thence gradually narrowed, apex para- 

 bolically rounded. Striae fine and rather finely punctate, intervals wide, 

 nearly flat, and almost smooth. Last ventral segment scarcely longer than 

 the preceding in either sex, not relatively longer in the male. Legs slender; 

 front thighs not more stout, and armed with a slender, acutetooth; hind 



