182 NEW SPECIES MELYRIDAE, CHRYSOMELIDAE AND TENEBRIONIDAE 



delay making known the species that have already in part been distributed 

 under manuscript names. 



Before closing this thesis it will be well to urge the student to 

 familiarize himself with the pronotal sculpturing, to determine that it 

 consists of distinct and well defined punctures and that the intervals may 

 be more or less distinctly indented after the manner of hammered brass. 

 The basal joint of the antennae is always black, with one exception, and 

 that is in concurrens Casey. 



Genus DASYTES Payk. 



Dasytes nevadensis, new species. Form subcuneiform, elongate. 

 Color polished black, with a very faint greenish metallic lustre ; tibiae and 

 tarsi scarcely or feebly nigro-piceous. 



Pubescence nigro-fuscous, sparse, moderate in length, rather coarse, 

 semierect, very irregularly directed on the head and pronotum ; marginal 

 cilia widely spaced and not noticeably fimbriform. 



Head rather large, wider across the eyes than the pronotal apex ; front 

 very broadly and feebly bi-impressed, punctures sparse, rather small ; 

 surface shining and somewhat wrinkled along the eyes and frontal margin ; 

 muzzle short. Eyes moderately prominent, broadly convex, setigerous, 

 setae short and sparse. Antennae rather long, reaching well beyond the 

 pronotal base, joints four to ten inclusive subequal, eleventh about twice 

 as long as wide. 



Pronofum about a fourth wider than long, widest behind the middle 

 where the sides are distinctly and evenly arcuate, somewhat constricted 

 anteriorly where the sides are rather deeply sinuate behind the apical 

 angles, lateral margins distinctly and rather strongly serrulate; apex 

 broadly and feebly arcuate, rather arcuato-truncate in middle third, 

 narrower than the base ; apical angles obtuse and more or less rounded ; 

 base broadly arcuate, continuously so with the broadly rounded angles, 

 which are really obtuse and reflexed when viewed obliquely ; disk rather 

 strongly convex anteriorly and centrally, less so toward the basal angles, 

 submarginal line very strong and passing arcuately from side to side 

 along the basal margin, central area very sparsely punctate, punctures 

 quite evenly spaced, intervening surface glabrous and shining, lateral area 

 rather narrow and strongly reto-rugose. 



Elytra about one and a half times longer than wide, widest behind 

 the middle, sides converging anteriorly, apex rather broadly and para- 

 bolically rounded ; disk moderately convex, punctures rather sparse and 

 not strong, somewhat obscured by the transverse subrugulation. 



Abdomen densely and rather coarsely punctate, surface distinctly and 

 transversely rugulose. 



