Coleopterological Notices. 47 



strong-]}^ and obliqueh^ forward. The sutures are obsolete. The 

 mentum is ahiiost flat, shining and reticulate. The color occasion- 

 ally becomes very pale flavate-brown throughout. 



B. exiltlillS n. sp. — Rather narrow and depressed, subparallel, black ; 

 prothorax pale, red-brown ; elytra same, slightly clouded with piceous toward 

 base ; abdomen paler at apex, black beneath ; legs and antennse testaceous, 

 the latter infuscate toward apex ; head very slightly shining, finely, rather 

 strongly granulosa ; pronotum distinctly shining, finely and rather strongly 

 granulato-reticulate ; abdomen polished, finely reticulate, more strongly so 

 toward apex. Head distinctly narrower than the prothorax, very feebly con- 

 vex, with a few small scattered punctures laterally ; vertex with an elongate 

 feeble impressed fovea, on either side of which the surface is very feebly 

 swollen ; epistomal suture strong, arcuate, broadly impressed ; anterior angles 

 of the epistoma strongly tuberculate ; antennal prominences large and very 

 strong, their apices externally finely and strongly margined with an elevated 

 bead ; antennse moderate in length, rather strongly, gradually incrassate ; 

 third joint rather longer than the second and as long as the fourth and fifth 

 combined, tenth fully three-fourths wider than long. Prothorax just visibly 

 narrower than the base of the elytra, one-fourth wider than long ; sides in 

 rather more than apical two-thirds parallel and straight, then convergent and 

 straight for a short distance, then broadly rounded into the base without trace 

 of basal angles; base transverse; apex just visibly arcuate; apical angles 

 right and extremely narrowly rounded, lateral very obtuse, broadly rounded 

 and not distinct ; disk rather coarsely, sparsely and very xmevenly punctate ; 

 median groove wide, very deeply impressed, entire and conspicuous. Elytra 

 fully as long as wide, one-fifth wider and one-half longer than the prothorax ; 

 sides nearly straight, slightly divergent ; surface very feebly impressed on 

 each side of the suture at base, rather coarsely, moderately densely and deejjly 

 punctate, the punctures generally separated by nearly twice their own widths ; 

 pubescence rather long, distinct but not very dense. Abdomen at apex nearly 

 as wide as the elytra, at base much narrower ; sides straight and distinctly 

 divergent ; surface finely, rather sparsely punctate, finely and densely so 

 beneath, with the surface finely granulato-rugulose and somewhat dull. 

 Length 5.5 mm. 



California (San Diego). 



The hypomera are flat, but strongly depressed below the lateral 

 edges, the latter being very prominent and acute throughout; at 

 apex the width is fully three-fourths that at the fissures, Avhich are 

 but slightly shorter than the adjacent bypomeral width, and nar- 

 rowly but very distinctly open ; the prosternal sutures are almost 

 completely obliterated but rather distinctly traceable. The mentum 

 is shining, coarsely and very strongly reticulate, and broadly im- 



