BY W. MACLEAY, ESQ., F.L.S. 63 



and of a beautiful dai'k violet tinge, with two well-marked puncti- 

 form impressions on each, one near the shoulder, the other 

 towards the apex. 



Carenum Chaudoiri. 

 Nigrum nitidum sulcis frontalibus divergentibus, thorace sub- 

 quadrato postice subviolaceo, elytris subangustis subtilissime 

 striato-punctatis nigro-violaceis quadripunctatis, tibiis anticis 

 extus bidentatis. 

 Long. 9 lin., lat. 2| lin. 

 Hab., Australia. 

 I have no record of the particular habitat of this insect, nor of 

 how I became possessed of the single specimen of it in my 

 cabinet. It is in many respects like G. BonelUi, but differs from 

 it in having the shallow transverse depression on the forehead 

 less mai'ked, in the colour which has no shade of green, and in 

 the narrow form and more distinct sculpture of the elytra. 



Carenum opacdm. 



Nigrum opacum sulcis frontalibus divergentibus, thorace sub- 

 quadrato, elytris viridi-aureis subtilissime et confertissime 

 punctulatis quadripunctatis, tibiis anticis extus bidentatis. 

 Long. 10 lin., lat. 3 liu. 

 Hab., Clarence River. 

 This species is also in many respects like C. Bonellii. The 

 facial grooves, however, are longer and deeper, and the transverse 

 depression behind more deep and circular. The thorax is some- 

 times of the same dull golden green as the elytra. These last, 

 under a lens, show a surface completely and closely covered with 

 very minute punctures, giving a shagreen appearance, and no 

 doubt causing the dull appearance so characteristic of the species, 



Carenum tristb. 



Nigrum subopacum sulcis frontalibus divergentibus, thorace 

 subquadrato angulis posticis rotundatis, elytris ovatia qua- 

 dripunctatis, tibiis anticis extus bidentatis. 



Long. 8 lin., lat. 2\ lin. 



Hab., Wide Bay. 



