. ROLAND HAYWARD. 77 



distinct; basal impressions broad, deep, histriate ; sides with the margin narrowly 

 reflexed, arcuate in front, distinctly sinuate behind ; hind angles rectangular, 

 carinate. Elytra about one-half wider than the thorax, oblong-ovate, moderately 

 deeply striate, very finely towards the tip : striae deeply punctate to behind the 

 middle, the five inner entire ; third stria with the first dorsal puncture about one- 

 third from base, the second about one-fourth from apex : intervals feebly convex. 

 Beneath black, shining. Legs variable in color, usually with the femora piceous 

 and the tibiae and tarsi rufous, sometimes entirely rufous or entirely i)iceous. 

 Length .17-. 21 inch ; 4.25-5.25 ram. 



Closely allied to driola, but les.s elongate, with the thorax slightly 

 wider as compared with its length, and as wide at base as apex. 

 From nevadense, on the other hand, it differs by its more deeply 

 striate elytra witliont basal sp(*t, and by the sides of the thorax 

 distinctly sinuate behind and the hind angles rectangular. 



Specimens are labeled mexicanum in some collections. I find, 

 however, after studying specimens of that species in the ^Museum of 

 Comparative Zoology at Cambridge, received from Bates, that the 

 last named species is very closely allied to tnmsversale, and is very 

 distinct from the present species. 



It is known to me from California, Arizona, Utah, Colorado and 

 Guadaloupe Island. 



45. B. canadense n. sp. — Form elongate, convex; color nigro-feneous, dis- 

 tinctly tinged with greenish, shining. Head large, as wide as the thorax at apex ; 

 palpi dark rufous ; antennae about one-half as long as the body, piceous, the basal 

 joints rufous. Prothorax subcordate, less than one-half wider than long, nar- 

 rower at base than apex, sparsely punctate at base; apex nearly truncate; me- 

 dian line deep, abbreviated in front; transveree impressions distinct; basal im- 

 pressions broad, deep, bistriate ; sides with the margin narrowly reflexed. strongly 

 arcuate in front, deeply sinuate behind ; hind angles prominent, subacute, strongly 

 carinate. Elytra about one-half wider than the thorax, oblong-oval, deeply 

 striate, more finely at sides and tip; striae entire, distinctly punctate nearly to 

 apeK, the fifth grooved at tip; third stria with the first dorsal puncture about 

 one-third from base, the second about one-third from apex; intervals convex. 

 Beneath black, shining. Legs rufous. Length .22-. 24 inch ; 5.5-6 mm. 



A very pretty species. It differs from the others of the group i!i 

 having all the striae of the elj^tra entire. It resembles most closely 

 B. stria la. 



Described from two females collected near Ottawa, Canada, by 

 Mr. W. H. Harrington, to whom I am indebted for the single ex- 

 ample in my cabinet. Mr. Harrington writes me that they were 

 taken on the shore of the river, at high water, among some stones 

 near the water's edge on May 24, 1891. 



46. B. Siriola Lee. — Form slender, elongate, moderately convex; color 

 nearly black, more or less jeneous, or more rarely bluish or greenish, shining, the 



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



