104 AMERICAN COLEOPTERA. 



80. B. seiieicolle Lee. — Form rather slender, elongate, feebly convex. Head 

 and thorax geueous, more or less tinged with green or coppery ; elytra bjownish 

 or fuscous, with a humeral Innule extending posteriorly along the margin nearly 

 to the middle, a transverse fascia behind the middle, concave backwards, and the 

 apex testaceous, the above markings well defined ; epipleurse more or less testa- 

 ceous. Head finely alntaceous, scarcely as wide as the thorax at apex ; palpi rufo- 

 piceous; antennae scarcely one-half as long as the body, fuscous, the basal joints 

 testacous. Prothorax subquadrate. more than one-half wider than long, as wide 

 at base as apex, the surface very finely alntaceous ; apex nearly truncate ; median 

 line distinct, abbreviated before and behind: transverse impressions distinct; 

 basal impressions broad, deep, bistriate; sides with the margin very narrowly 

 reflexed, arcuate from apex to base ; hind angles obtuse, but not rounded, strongly 

 carinate. Elytra very slightly wider than the thorax, oblong-ovate, finely striate ; 

 strife entire, finely punctate to behind the middle, the seventh grooved at tip ; 

 intervals nearly flat, the third with the first dorsal puncture about one-third from 

 base, the second about one-third from apex. Beneath black, shining. Legs rufo- 

 testaceous. Length .16-.18 inch ; 4-4.5 mm. 



A very pretty and easily recognizable species. 



It is apparently very rare, but six specimens being known to me, 

 one each from Lake Superior and Winnipeg, Man., two from Chey- 

 enne, Wyo., and two from Colorado. Of the last two one is from 

 Garland. 



81. B. THriegatuin Say. — Form moderately broad, slightly convex. Head 

 and thorax nigro-seneous, usually more or less tinged with green or coppery, 

 elytra either testaceous, variegated with black, or black, variegated with testaceous. 

 Head alntaceous, as wide as the thorax at apex ; palpi rufous, darker towards the 

 tip; antennse about one-half as long as the body, dark fuscous, the basal joints 

 paler. Prothorax subquadrate, about one-half wider than long, as wide at base 

 as apex, usually finely alutaceous, more finely so or not at all on the disc; apex 

 truncate; median line deep, usually abbreviated before and behind; transverse 

 impressions moderately distinct ; basal impressions broad, deep, bistriate; sides 

 with the margin narrowly reflexed, slightly arcuate in front, more or less dis- 

 tinctly sinuate behind ; hind angles rectangular, strongly carinate. Elytra about 

 one-half wider than the thorax, oblong-ovate, moderately deeply striate: strife 

 entire, distinctly punctate to behind the middle, the seventli, or more rarely the 

 fifth, slightly grooved at tip: intervals more or less convex, the third with the 

 first dorsal puncture about one-third from base, the second about one-third from 

 apex. Beneath black, shining. Legs rnfous or rufo-testaceous. Length .14-. 19 

 inch ; 3.5-4.75 mm. 



As may be seen from the above description, this is a very variable 

 species. As above defined it includes both patruele Dej. and con- 

 spersum Chaud., neither of which I have been able to separate by 

 constant characters. 



The elytra vary greatly in their markings, which are very difficult 

 to describe. The form which is perhaps the most common has the 

 ground-color testaceous, with the following black markings : a hu- 



