318 MEMOIRS ON THE COLEOPTERA 



parently a little more elongate, with slightly more developed an- 



tennal club and tarsal claws harfordi Csy. 



A Male similar to harfordi in general habitus and structure but 

 smaller in size and with the decumbent elytral hairs narrower, less 

 squamiform and decidedly sparser; last palpal joint a little smaller, 

 a third longer than the antennal club; prothorax nearly similar 

 throughout; scutellum more sparsely punctured and squamulose; 

 elytra a little shorter, much less closely punctate and pubescent, 

 the squamules about six times as long as wide; pygidium more 

 finely but almost as densely pubescent, more convex than in harfordi; 

 tarsi more slender, the posterior much shorter, the claws smaller. 

 Length (cf) 17.0 mm.; width 8.4 mm. California (Alameda Co.), 



Fuchs. One specimen nanella n. subsp. 



Body somewhat larger, notably stouter, especially in the female, the 

 vestiture more yellowish and more broadly squamiform; head 

 similarly densely clothed; antennal club rather more elongate than 

 in harfordi, the last palpal joint slender, with a very deep narrow 

 and entire excavation and a third longer than the club; prothorax 

 nearly as in harfordi but much less angulate at the sides medially, 

 the margin strongly serrato-crenulate throughout, slightly more 

 reflexed basally, the angles not very broadly rounded, strongly and 

 closely punctate, the vestiture moderately dense, of long decumbent 

 and gradually attenuate scales and sparser erect hairs, the scutellum 

 with dense scales like those of the pronotum; elytra longer than in 

 harfordi, two-fifths wider than the prothorax, very densely clothed 

 with apically attenuate decumbent scales, which are about four 

 times as long as wide, the surface moderately punctato-rugulose; 

 pygidium densely clothed with sljghtly narrower scales, triangular, 

 convex; abdomen closely subsquamulose; hind tarsi not quite as 

 long as the tibiae. Length 20.7 mm.; width 9.4 mm. One specimen. 

 Female differing greatly from the female of harfordi, being much 

 stouter and much larger than the male, blackish-castaneous, rather 

 shining; head not densely punctate and rather sparsely clothed with 

 moderately stout decumbent, and moderately long erect, hairs, the 

 umbo of the vertex strongly elevated and conspicuous; last palpal 

 joint scarcely more than half as long as the oval stout antennal 

 club, the excavation narrow, extending from near the base to apical 

 fifth; prothorax nearly as in the male but larger, with rather more 

 angulate sides and more broadly rounded basal angles, having 

 similar strong and irregularly close-set punctures, the decumbent 

 hairs sparser and thin, the erect long and rather more numerous; 

 scutellum densely squamulose; elytra only a fourth longer than wide 

 and fully two-fifths wider than the prothorax, the scattered decum- 

 bent hairs short and fine, closer apically and along the suture; 

 pygidium more closely pruinose with similar small hairs; tarsi very 

 short. Length 23.0 mm.; width 11.5 mm. One specimen. 



California (San Luis Obispo Co.) squamosa Csy. 



13 Thoracic punctures notably sparse. Body rather stout, shining, 

 blackish, the elytra somewhat paler, the decumbent vestiture 

 moderately dense, squamiform, white to ochreous in color; head and 



