6 Mr. Edward Saunders on 



centre and at its angles, a little more than half as long 

 as the base ; sides rounded immediately behind the an- 

 terior angles, then nearly straight to the base, which has 

 a very shallow median lobe ; surface rugose, especially on 

 the sides ; disk with an irregular slightly raised dorsal 

 line. Elytra a little more than twice as long as wide, 

 finely punctured, each with four smooth elevated costse ; 

 the lateral margins and suture also are rather raised ; 

 sides swelling out behind the middle ; apex of each 

 rounded, with a slight sutural angle. Underside and 

 legs rugose, with a few short hairs. 



Length 19 lines ; breadth 6^ lines. 



Hab. Swan River. 



Gen. CHALCOT^NIA, H. Deyrolle. 



(BuPEESTis, ^ftrs, and E vide s, par.*?, Hope.) 



1. Chalcot^nia albivittis, (PL 1. fig. 7). 



Bitprest'ls albivittis, Hope, Tr. Ent. Soc. iv. 214. 



'^^nea, thorace punctulato, lateribus externis albis, ely- 



trisque seneis, vitta albida laterali notatis.'^ (Hope) . 



Head coppery. Thorax eeneous, with a white impres- 

 sion extending along its lateral margin. Elyti-a con- 

 colorous with the thorax, each with a wide silvery 

 pubescent vitta, extending from behind the shoulder to 

 the apex. Underside and legs cyaneouSj with coppery 

 reflections. 



Head very deeply punctured, and widely excavated 

 between the eyes. Thorax half as broad again as long; 

 anterior margin nearly straight, three-quarters the length 

 of the base ; sides very slightly curved ; base straight ; 

 disk largely punctured, with a slightly raised dorsal line 

 in front ; each side with a long fovea, reaching from the 

 margin to the base, these fovete are very finely punc- 

 tured, and slightly pubescent. Elytra twice and a quarter 

 as long as wide, punctate-striate, each with an impressed 

 pubescent lateral vitta ; sides slightly sinuate above the 

 middle, posterior margin denticulate, apex terminated in 

 a short spine. Underside and legs punctured, with a few 

 very short scattered hairs. 



Length 12^ lines ; breadth 4 lines. 



Hab. Van Diemen's Land. 



Mr. Hope's type of this species has had a wrong head 

 attached to it, I have therefore described that part from 

 a specimen in the collection of Mr. Bakewell. 



