106 AMERICAN COLEOPTERA. 



83. B. internietlinui Kirby. — Form elongate, slightly depressed ; color 

 dark viridi-seneous, more rarely bluish or slightly cupreous, the elytra with a 

 submarginal spot about one-fourth from apex and an apical spot testaceous, the 

 two usually connected along the margin, rarely also with a short transverse band 

 about one-third from base extending obliquely inwards about half way to the 

 suture. Head alutaceous, as wide as the thorax at apex ; palpi piceous or rufo- 

 piceous, paler at base ; antennje scarcely one-half as long as the body, dark fuscous, 

 the basal joints paler. Prothorax subquadrate, rather more than one-half wider 

 than long, narrower at base than apex, finely alutaceous; apex truncate; median 

 line very fine, abbreviated before and behind ; transverse impressions feebly 

 marked ; basal impressions small, moderately deep, bistriate; sides with the mar- 

 gin very narrowly reflexed. arcuate in front, oblique behind, at most only obso- 

 letely sinuate in front of the hind angles, which are obtuse, but not rounded, 

 carinate. Elytra less than one-half wider than the thorax, elongate, oblong- 

 ovate, moderately finely striate ; stripe entire, finely punctate to behind the mid- 

 dle, the seventh slightly grooved at tip ; intervals flat, the third with the first 

 dorsal puncture about one-third from base, the second about one-third from apex. 

 Beneath black, shining. Legs varying from rufous to rufo-piceous, the femora 

 usually darker. Length .15-.18 inch : 3.75-.4.5 mm. 



Quite distinct from the others of the group. It seems to lead 

 from variegatuin and its allies towards constrictum and contracium. 



It occurs in Manitoba, S. Dakota, ^Montana, Nebraska, Kansas, 

 Iowa, Illinois, Mississippi, the Indian Territory, Texas, Colorado, 

 New Mexico, Arizona and Southern California. 



84. B. convexuluin n. sp. — Form robust. Head and thorax nearly black, 

 scarcely seneous. shining, the latter slightly tinged with brown ; elytra dark tes- 

 taceous with a sinuous transverse band about one-third from base, another broader 

 one about the middle, and another between this and the apex nearly black, the 

 markings well defined. Head as wide as the thorax at apex, not alutaceous: 

 palpi rufo-piceous; antennse about one-half the length of the body, dark fuscous, 

 the basal joints testaceous. Prothorax subtrapezoidal, about one-half wider than 

 long, slightly narrower at base than apex ; apex feebly emarginate; median line 

 distinct, abbreviated in front ; transverse impressions moderate ; basal impres- 

 sions broad, deep, very distinctly bistriate: sides with the margin very narrowly 

 reflexed. arcuate in front, oblique behind, slightly sinuate in front of the hind 

 angles, which are subrectangular and strongly carinate. Elytra about one-half 

 wider than the thorax, nearly oval, moderately deeply striate; striae very dis- 

 tinctly, but not closely punctate to behind the middle, the five inner entire, the 

 fifth slightly grooved at tip ; intervals slightly convex, the third with the first 

 dorsal puncture about one-third from base, the second about one-third from apex. 

 Beneath black, shining. Legs brownish testaceous. Length .12 inch ; 3 mm. 



A very pretty and well-marked little species, allied to versicolor 

 and timidum, but distinct by its more robust form, more oval elytra, 

 and by the form of the thorax. 



Described from four specimens from British Columbia. I have 

 since seen one example from Laggan, Alberta. 



