656 MISCELLANEA ENTOMOLOGICA, NO. V. 



In my specimens of this insect, the head and thorax are more 

 minutely and densely granulate, and the gibbous elevation on the 

 thorax is large and bi-tuberculate. 



89. Sakagus convexicollis, n. sp. 



In form and sculpture very like the preceding species. It 

 differs in being of more elongate form, and of a more nitid black 

 colour. The thorax is less thickly granular and less transverse, 

 the disk very convex with a well-marked median line, and the 

 anterior angles less pointed. The elytra are more parallel-sided, 

 the costa on each side of the suture is continuous almost to the 

 apex, the tubercles on the three outer rows smaller and the inter- 

 stices more granular than in S. incisus, the space between the two 

 costse punctate. 



Long. 10 lines, lat. 5 lines. 

 Mab. — South Australia. 



90. Saragus Blackburni, n. sp. 



Very like S. incisus, but of a rather broader form ; the head is 

 deeply impressed between the eyes, the clypeal suture deeply 

 marked. The thorax is like that of S. incisus, but the gibbosity 

 not so marked or so largely tuberculated, the anterior angles not so 

 pointed, and the sides even rounded, not sinuate as in S. incisus. 

 The elytra are minutely and thinly punctate, the costse and rows 

 of tubercles as in *S'. incisus, but much smaller and smoother. 



Long. 10 lines, lat. 6| lines. 



Hob. — South Australia. 



I have named this species after the Rev. T. Blackburn, B.A., 

 whose studies of the Entomological Fauna of South Australia, 

 published in the Proceedings of the Royal Society of that 

 Colony, are most valuable to Australian entomologists. 



