ROLAND HAYWARD. 107 



85. B. tiiiii<liiin Lee. — Form elongate, slightly convex. Head and thorax 

 black, slightly a>neous; elytra usually testaceous with three transverse bands, 

 more or less connected along the suture, piceous or nearly black, sometimes nearly 

 black with two pale, transverse bands, or rarely with the transverse bands nearly 

 effaced. Head very finely, sometimes scarcely perceptibly, alutaceous: palpi 

 piceous, usually paler at base ; anteunse scarcely one-half the length of the body, 

 piceous, the basal joints more or less rufous. Prothorax subcordate, narrower at 

 base than apex, more than one-half wider than long; apex truncate; median 

 line distinct; basal impressions broad, moderately deep, bistriate ; sides with the 

 margin narrowly reflexed, arcuate in front, sinuate behind ; hind angles rectan- 

 gular, carinate. Elytra oblong-ovate, scarcely one-half wider than the thorax, 

 moderately finely striate: striie entire, punctate to behind the middle, the fifth 

 slightly grooved at tip; intervals nearly flat, the third with the first dorsal punc- 

 ture about one-third from base, the second about one-third from apex. Beneath 

 black, shining. Legs rufous or rufo-piceous. Length .10-. 13 inch ; 2.5-3.25 mm. 



The name timidam has previously been regarded as a synonym of 

 versicolor Lee. A careful study of LeConte's types of these two 

 species and of pictmn, however, shows that the last two are synony- 

 mous, while timidum is distinct. 



This species resembles the next very closely, but differs in having 

 the elytral stripe entire. It is also less convex, with the sides of the 

 thorax less strongly arcuate in front and less deeply sinuate behind. 

 From convexulum it differs by its much more elongate and less con- 

 vex form, with the outer strise of the elytra not abbreviated behind, 

 and by the form of the thorax. 



It is known to me from Lake Superior, Manitoba, Colorado and 

 the Rocky Mountain region, Utah, Nevada, Arizona, and on the 

 Pacific coast from California to British Columbia. 



86. B. versicolor Lee. — Form slightly elongate, moderately convex ; color 

 nearly as in iimidum. Head very finely or not alutaceous, as wide as the thora.x 

 at apex ; palpi rufo-piceous; antennsB scarcely one-half as loiag as the body, pi- 

 ceous, more or less rufous at base. Prothorax subcordate, about one-half wider 

 than long, distinctly narrower at base than apex, scarcely rugose at base ; apex 

 nearly truncate; median line fine, extending between the transverse impressions, 

 which are distinct ; basal impressions deep, bistriate ; sides with the margin nar- 

 rowly reflexed, strongly arcuate in front, usually deeply sinuate behind ; hind 

 angles rectangular or subacute, carinate. Elytra about one-half wider than the 

 thorax, oblong-oval, moderately deeply striate ; strife distinctly punctate to behind 

 the middle, the two inner entire, the others more or less abbreviated behind, the 

 fifth represented by a groove 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 rufous or rufo-piceous. Length .10 -.14 inch ; 2.5- 

 3.5 mm. 



Closely allied to the preceding, but distinct by the outer strise of 

 the elytra abbreviated beliind, and by its more convex form. Tlie 



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



