68 Coleopterological Notices. 



very short, twice as wide as long, shining but coarsely confusedly 

 reticulate, broadly, feebly emarginate throughout the width at apex, 

 with a narrow impressed transverse groove just behind and along 

 the apical margin, and a small deep abrupt impression in the middle 

 at the base, elsewhere convex and slightly tumid. 



The description is taken from the male, the eighth segment having 

 the usual acute incisure; it is very closely allied to basalis Lee , but 

 differs in its smaller size, more transverse and more sparsely punc- 

 tate prothorax, in which the anterior angles are less prominent, and 

 its shorter, more coarsely and much more feebly punctate elytra, in 

 which the exterior apical angles are more broadly rounded. In 

 basalis the mentuni is truncate at apex, feebly impressed in the 

 centre, the surface on each side of the impression forming a rounded 

 tumid elevation. It is totally devoid of the small round fovea near 

 the base, Avhich is so marked in ignavus. 



B. IllisellllS 11. t-p. — Rather slender, black ; elytra very pale, ■wliitisli, 

 the basal third piceous-brown, the same tint extending broadly along the 

 middle nearly to the apex ; legs and antennpe very pale, the latter infuscate ; 

 femora darker ; integuments polished, except the elytra reticulate, the abdo- 

 men coarsely so, the lines very fine, the pronotnm more finely so, with the 

 reticulations tending to a transverse arrangement. Head rather distinctly 

 narrower than the prothorax, strongly convex, neither tuberculate nor foveate, 

 rather finely but distinctly and sparsely punctate ; antennal prominences very 

 small and extremely feeble ; suture tine, not impressed ; eyes moderate, very 

 coarsely faceted, not very prominent ; antennae short, robust, gradually and 

 strongly incrassate, rather strongly compressed ; scape as long as the next six 

 joints combined ; second joint much longer than the next two, all the joints 

 after the third transverse, successively more strongly so, compactly placed, the 

 eleventh short, very broad, not as long as wide, very obtuse. Prothorax nearly 

 as wide as the base of the elytra, ntarly two-fifths wider than long ; sides in 

 apical three-fourths parallel and nearly straight, then abruptly, broadly 

 roiinded into the base without lateral or basal angles ; base transverse ; apex 

 truncate, the apical angles acute and slightly anteriorly prominent, feebly 

 rounded externally ; disk transversely, rather strongly convex, very finely 

 though distinctly, sparsely punctate, the median groove very fine, rather feebly 

 impressed and not quite attaining the apex. Elytra slightly longer than wide, 

 two-fifths wider and fully four-fifths longer than the prothorax ; sides just 

 visibly divergent, nearly straight ; exterior apical angles very broadly rounded, 

 interior extremely narrowly so ; surface feebly impressed near the suture 

 toward base, very finely, feebly, not very distinctly punctate, the punctures 

 generally separated by between two and three times their own diameters ; 

 pubescence extremely short, sparse and inconspicuous. Abdomen distinctly 

 narrower and scarcely longer than the elytra ; sides very feebly convergent 



