BY THE REV. T. BLACKBURN. 851 



coarsely punctured portion is smooth except that there are some 

 very fine (in the examples before me scaleless) punctures in the 

 middle. The prothorax at its widest part is slightly more than 

 half again as wide as it is long down the middle ; its base (which 

 is bisinuate) is about half again as wide as its front margin (which 

 is decidedly though gently emarginate) ; its front angles are 

 obtuse, but well defined, those at the base pointed and a little 

 directed outward ; its lateral margins are slightly crenulate and 

 diverge in nearly straight lines to behind the middle where they 

 are strongly ani suddenly rounded, thence proceeding with a 

 rather strong sinuation to the base ; its surface is punctured and 

 scaled uniformly with the coarsely punctured part of the head, 

 although a little moi^e closely towards all the margins than on the 

 disc ; there is a broad thickened margin all across the front, which 

 is punctured and scaled uniformly with the neighbouring surface. 

 The elytra and scutellum are punctured and scaled very similarly to 

 the prothorax, and the former bear obscure indications of three or 

 four wide scarcely convex costte. The propygidiura, pygidium and 

 the entire undersurface are densely covered with closely packed white 

 scales which entirely conceal the derm, and the sterna are clothed 

 rather thickly with long white hairs. The legs are coarsely and 

 sparingly punctured and scaled ; the front tibiae are tri-dentate 

 externally, the upper tooth very small. 



The above description is founded on the only really fresh specimen 

 before me, — which I take to be a female. Its elytra are con- 

 siderably dilated backward to near the apex and the apical ventral 

 segment is more than half the length of the penultinate with its 

 apical margin evenly rotundate-truncate. In what I take to be 

 the male the head and prothorax are of a pitchy color (probably 

 merely an individual variety), the surface of the prothorax is 

 obscurely uneven through the presence of some irregular ill-defined 

 scarcely convex ridges, the elytra are extremely parallel, the apical 

 ventral segment is much less than half the length of the penul- 

 timate with its apical margin widely and feebly bisinuate, and the 

 whole insect is much narrower than the other sex. The antenna? 

 of these two specimens do not differ noticeably in structure. 

 55 



