BY W. MACLEAY, JUN., ESQ. 181 



This species is of a brilliant black. The head and thorax are 

 as in G. tindiUatum. The elyti'a are slightly narrower at the 

 base than near the apex, and are marked with indistinct wavy 

 striee, only visible under a powerful lens. 



I found one specimen of this insect last spring, under a stone 

 near Wiugelo, on the road to Goulburn. 



The four last described insects belong to the second group in 

 my table of species. C. tinctillatum and G. hipunctatum'heva.gihG 

 only ones previously described. They are all so much alike, that 

 without the closest inspection, they cannot possibly be dis- 

 tinguished. 



10. — Carenum riverinj:. 



Nigrum nitidum subcj^aneum, abdomine ovato, elytris violaceis 

 quadripunctatis, tibiis anticis extus bidentatis. 



Long. 10 lin., lat. 3 lin. 



Hab. Lower Murrumbidgee. 

 This species is of a glossy greenish, or bluish black above, 

 (excepting the elytra, which are of a violet colour) and black 

 beneath, with the antennas palpi and legs of a piceous hue. The 

 mandibles are strong. The forehead is deeply bisulcated, the 

 sulci extending obliquely forwards from behind the eyes. The 

 thorax is broader than long, almost truncate in front, rounded at 

 the posterior angles, and slightly emarginate at the base ; the 

 medial line is deepest in the middle, and is crossed throughout, 

 but particularly in its basal half, with minute scratches. The 

 posterior angles are marked with longitudinal impressions. The 

 elytra taken together, are of an elongated oval shape, with a 

 puncture near the apex of each, and another of less size close to 

 each humeral angle, there are also a few punctures along the 

 lateral margins, and on the basal margin. The fore tibiae are 

 bidentate externally. 



I captured two specimens of this very handsome species last 

 winter, at Kerarbury, on the Lower Murrumbidgee. I have given 

 it the name by which that district is now generally known. 



11. — Carendm interruptum. 

 Nigrum nitidum, elytris purpurco-marginatis^ quadripunctatis 



