ROLAND HAYWARD. 95 



coloration. It seems to vary hardly at all, except that the markings 

 are slightly darker in some examples than in others, while in some 

 the dusky spot at the apex of the thorax is wanting. The sides of 

 the thorax are slightly more distinctly sinuate behind in some speci- 

 mens than in others. 



It is know^n to me only from California. 



65. B. ini^lllatnni Lee. — Form nearly as in cordatnm, but less depressed: 

 color nigro-seneous, shining, the elytra usually with a hand surrounding the hu- 

 merus, often extending narrowly along the margin to behind the middle, and 

 another transverse band about one-third from apex rufo-testaceous: epipleurpe 

 varying fi'om rufo-testaceous to nigro-seneous. Head smaller than in cordatum, 

 scarcely as wide as the thorax at apex, finely alutaceous; palpi piceous; antenuje 

 scarcely one-half as long as the body, piceous. Prothorax cordate, more than 

 one-half wider than long, very distinctly narrower at base than apex, not aluta- 

 ceous, shining, rugose at base; apex slightly emarginate; median line fine, ab- 

 breviated before and behind ; transverse impressions moderately distinct, the 

 anterior distant from the apex ; basal impressions moderately deep, obsoletely 

 bistriate ; sides with the margin narrowly reflexed, arcuate to behind the middle, 

 distinctly sinuate behind ; hind angles rectangular, finely carinate. Elytra 

 scarcely one-half wider than the thorax, oblong-ovate, finely striate; strise entire, 

 finely punctate to behind the middle, the seventh slightly grooved at tip; inter- 

 vals feebly convex, the third with the first dorsal puncture about one-third from 

 base, the second about one-fourth from apex. Beneath black, often slightly tinged 

 with green, shining. Legs piceous or nearly black, rarely rufo-piceous. Length 

 .24-.30iuch; 6-7.5 ram. 



This species is distinct from cordatum by the characters above 

 given. The elytral markings are subject to considerable variation, 

 being nearly eifaced in some specimens, while in others they resemble 

 those of the latter species quite closely. The form described above 

 is the one most commonly met with. 



Its range of distribution is confined to the region west of the 

 Rocky Mountains. It occurs in Wyoming, Utah and along the 

 Pacific coast from British Columbia to California. 



66. B. eorcliitiim Lee— Form moderately elongate, depressed. Head and 

 thorax cupreo-aeneous, the elytra testaceous with the following bronzed or nearly 

 black markings : an elongate humeral spot, a small oblong spot on the third in- 

 terval about one-third from base, and two transverse bands, the first slightly 

 behind the middle extending nearly to the margin, the second about one-fourth 

 from apex and attaining the fifth stria, the last three connected by a line along 

 the suture extending from the base backward to the second transverse band and 

 laterally to the second stria; epipleurje testaceous. Head slightly wider than the 

 thorax at apex, coarsely alutaceous; palpi testaceous, darker towards the tip; 

 antennpe about one-half the length of the body, fuscous, the basal joints rufo- 

 testaceous. Prothorax cordate, nearly twice as wide as long, very distinctly nar- 

 rower at base than apex, alutaceous, slightly rugose at base : apex nearly truncate ; 



TKANS. AM. ENT. SOC. XXIV. MARCH, 1897. 



