of the Royal Physical Society. 293 



anterior angles projecting and rounded ; dorsal channel and 

 curved line in front distinct; disk convex, impunctate, with 

 transverse wrinkles across it. Scutellum black, impunctate, with 

 two depressions at its base. Elytra very convex, nearly twice as 

 broad as the thorax, gradually expanding behind till they reach 

 about a third from the apex, when they round in, and become 

 sinuate and obliquely truncate ; they are deeply punctate-striate, 

 the punctures on the strise small and close to each other ; the 

 strise (with the exception of the two next the suture) do not reach 

 the base, a narrow smooth space intervening; the interstices 

 between the strise are ridged, convex, shining, and appear im- 

 punctate when viewed by the naked eye or a weak lens ; when 

 viewed with a more powerful lens, a row of very minute punc- 

 tures is seen on the top of each interstice ; towards the margin 

 these punctures become more frequent and irregular; one or 

 two fovese occur on some of the strise, but they are not constant ; 

 the most constant seem to be one on the third stria very near 

 the base, and two on the second stria, one quite at the apex, the 

 other near it; a series of large circular fovese occurs on the 

 exterior interstice. The anterior testaceous blotch runs in a 

 narrow line across the second, third, fourth and fifth interstices 

 (not reckoning the space between the first stria and the suture 

 as an interstice), and on the third interstice becomes nearly 

 twice as broad, extending itself both up and down ; the posterior 

 testaceous mark is arranged transversely, somewhat checker-wise, 

 as follows : — a small spot on the first interstice not far from the 

 apex; another on the second interstice, a little larger, joining 

 the posterior external angle of the first ; another rather larger 

 transverse spot on the third and fourth interstices commences 

 at the anterior external angle of the second ; and another trans- 

 verse spot, of the same size as the last, on the fifth and sixth 

 interstices, commences at the posterior external angle of the 

 fourth. The terminal segment of the abdomen projects pro- 

 minently ; it is truncate ; the centre alone is of solid texture, 

 black, sparingly punctate, with a slight ridge in the middle. 

 Underside dark brown, polished and impunctate, except the 

 metasternum, which has its exterior margins slightly punctate. 

 Legs ferruginous ; anterior tibise emarginate ; all the tibise with 

 both internal and external spines at the apex. Claws pectinate. 



3. B. quadrinotata, mihi. PL XVI. fig. 3. 



Prsecedenti valde affinis, sed minor ; thorace minus marginato ; 



elytrorum maculis minoribus. 

 Long. 4J lin., lat. 2± lin. 



Exceedingly like B. obesa, but smaller. The same description 



