300 MEMOIRS ON THE COLEOPTERA 



also flexed at the sides but backward, the punctures forming still 

 more conspicuous black dots throughout; head much more coarsely 

 and closely perforato-punctate, the antennae very much more slender 

 and filiform, the basal joint shorter and not so stout but more rugosely 

 sculptured, the ashy basal bands of the remaining joints even more 

 dense and conspicuous; prothorax not quite so transverse, coarsely 

 punctate; scutellum with the median fulvous stripe more parallel; 

 elytra longer, nearly three-fourths longer than wide, the sides 

 straighter and more parallel, very broadly rounding at apex; under 

 surface and legs with ashy pubescence, variegated with small black- 

 ish spots, especially on the femora; fifth male ventral as in the 

 preceding but rather more narrowly rounded, the sinus equally 

 sharply marked. Length (cf) 15.5 mm.; width 7.0 mm. California 

 (Tulare Co.) annulata n. sp. 



Elytral punctures relatively much finer though distinct, sparse; antennae 

 similarly annulate, the tibiae in the same way uniannulate 3 



3 Body very broad, feebly convex, clothed and maculate nearly as in 

 humeralis, except that the fasciae and pronotal vittae are brownish- 

 black and the ashy hairs of the elytra are more intermingled with 

 fulvous and more divaricately oblique in arrangement, especially 

 near two marked longitudinal impressions of each elytron, which 

 are not so evident in any other species; head with moderately coarse, 

 deep and rather close-set perforate punctures, about twice as nu- 

 merous as in humeralis, the antennae relatively longer and less stout, 

 with the basal joint shorter, less stout, more punctured and rugose 

 and, especially, with different vestiture, the hairs being coarser, 

 longer and denser and more conspicuously intermingled with brown- 

 ish; prothorax still less transverse, one-half wider than long, the 

 lateral tubercle still less elevated and more obtuse; scutellum as in 

 annulata; elytra much shorter, barely more than one-half longer than 

 wide, the sides subparallel, the punctures sparse, becoming granose 

 basally throughout; fifth male ventral short, very broadly rounded, 

 very indefinitely subtruncate medially and without trace of the 

 median sinus of the two preceding species. Length (cf ) iS.o mm.; 

 width 8.2 mm. California (near San Francisco) guexi Lee. 



Body much narrower, smaller in size, similar in vestiture and maculation 

 but with the fasciae and vittse deep velvety-black and narrower than 

 usual; prothorax shorter than in any other, very nearly twice as 

 wide as long, the lateral tubercles less broadly obtuse than in the 

 others; scutellum as in the preceding; elytra parallel, together 

 semicircularly rounded at tip, with fine but strong, sparse punctures, 

 which do not become at all graniform basally, except near the hu- 

 meri; under surface and legs with more fulvous than cinereous 

 hairs. Length (9) 12.7 mm.; width 5.4 mm. California (locality 

 unrecorded) brevicollis n. sp. 



The head and prothorax in humeralis are distinctly broader and 

 more massive than in guexi, and the radical differences in the sexual 

 modifications of the fifth male ventral will readily serve to distin- 



