BY THE REV. T. BLACKBURN. 825 



Compared wi'^h the European B. spinosus this insect is more 

 elongate (with the elytra at their widest very evidently behind the 

 middle and much more elongated to a point behind), the punctura- 

 tion of the head and thorax is a little finer and not nearly so close, 

 and the strise on the elytra are a little stronger. 



The color is rather variable ; the head is usually yellowish- 

 brown, becoming darker behind, but in some examples the clypeus 

 is pale lemon yellow and in others there is hardly any posterior 

 infuscation ; the prothorax is yellowish-browa, generally with an 

 elongate dark vitta on either side of the middle ; the elytra are 

 very pale fuscous, clouded with a much, darker tinge, except along 

 the lateral margins and at the apex, — generally to such an extent 

 that the ground colour is more or less overborne, the darker shade 

 here and there forming rather distinct large blotches. The 

 sculpture of the elytra is quite uniform, not becoming feebler 

 either laterally or apically. The elytra are di^awn out considerably 

 at the apex, the apex, itself being more or less strongly emarginate, 

 the sides of the emargination being about equal and more or less 

 sharply pointed. The underside is rugosely finely and very closely, 

 but not deeply, punctured. A carina runs along each of the 

 sterna; on the metasternum, hjwever, it is very feeble and is 

 cleft to form the sides of a small smooth central slit ; the elevated 

 flattened central space of the metasternum is very well defined and 

 shar[)ly pointed behind, its point projecting considerably between 

 the hind coxee. In the female the hind body of dried specimens 

 is of very small size, it.s plane is very much below that of the 

 metasternum not filling up a quai'ter of the space included in the 

 cavity of the elytra, its apex bears two long testaceous filaments, 

 its ventral segments are of even length (or nearly so) all across, 

 and the antepenultimate is about the same width as the penul- 

 timate. In the male the hind body is much larger and has no apical 

 filaments, its third and fourth ventral segments are much longer 

 at the sides than in the middle, and the fifth is very much longer 

 in the middle than the fourth, the hind margin of the fifth 

 segment, moreover, being raised into a prominence on either side 

 of the middle, and each of these prominences running backwai-d 



