184 NEW SPECIES MELYRIDAE, CHRYSOMELIDAE AND TENEBRIONIDAE 



margin narrow, not noticeably reflexed ; disk very gradually declivous 

 posteriorly, more strongly so laterally, surface very finely and reticulato- 

 rugulose; punctures fine and moderately sparse; humeri not prominent 

 and without umbones. 



Abdomen very finely punctate. 



Male. Fifth ventral segment rather broadly rounded but truncate at 

 middle third of apex; surface rather broadly impressed before the trun- 

 cature, margin set with short stiff hairs. 



Female. Broader. Pronotal sides more broadly arcuate and less 

 convergent toward apex, surface not noticeably impressed in the basal 

 region and more evenly convex, submarginal line less deeply impressed 

 toward base. Fifth ventral broadly rounded. 



Measurements. Length (Types), 2.8-3.1 mm.; width, 1.2-1.4 mm. 



Holotype, male, and allotype, female, in the collection of the Cali- 

 fornia Academy of Sciences. Paratypes in the Academy's and my own 

 collection. 



Type locality. Mt. Eddy, Siskiyou County, California. Collected by 

 Mr. E. P. Van Duzee, on July 28, 1918, at an elevation of 9000 feet. 



In many specimens the trochanters and anterior femora are pale 

 dorsally at base. The first joint of the hind tarsi is about equal in length 

 to the third and fourth taken together. Angulatus by its distinct basal 

 angles of the pronotum differs from all other species of the genus, its 

 pubescence is uniform over the upper surface, longer, denser and grayer 

 on the abdomen beneath. 



Dasytes shastensis horridulus, new subspecies. Size comparatively 

 large and quite similar in the sexes. Form oblong-oval, about two and a 

 seventh times longer than wide, moderately convex. Color black ; mouth- 

 parts, antennae, tibiae and tarsi more or less piceous ; surface more or less 

 shining, metallic lustre scarcely discernible. 



Pubescence quite long and abundant, consisting of erect, black, 

 bristling and paler almost recumbent hairs. 



Head scarcely as wide as the pronotal apex ; front quite plane, feebly 

 and broadly impressed ; quite coarsely and closely punctate. Muzzle short 

 and broad. Eyes large and moderately convex, distinctly setigerous. 



Antennae similar in the sexes, rather long and loose-jointed, rather 

 moderately compressed, not incrassate ; second and third joints subequal 

 in length, second about a half longer than wide, nearly twice as stout as 

 the third, which is relatively slender and almost twice as long as wide ; 

 fourth and fifth joints subequal in length, subtriangular and slightly longer 

 than wide ; sixth to the tenth inclusive triangulo-moniliform, about as 

 long as wide; eleventh elongate, subovate and distinctly as long as wide. 



