BY ARTHUR M. LEA. 499 



Blackburn's description in being smaller (not quite 2 mm.), and 

 in having the elytra black except for a rather indistinct reddish 

 vitta on each side (extending from about one-fourth from base to 

 one-fourth from apex). The Itevigate sutural space extends to 

 about the middle, and is very distinctly margined by large and 

 closely seriate punctures. The basal segment of abdomen is 

 densely and rather coarsely punctate, the punctures being denser, 

 but somewhat smaller and deeper than those of metasternum. 



Rhizobius Breweri, Crotch. 



Two specimens from the Swan River possibly belong to this 

 species, as they are very closely allied to discolor; besides the 

 differences mentioned by Mr. Crotch, they are slightly more 

 convex, and with set?e distributed amongst the pubescence. 



R. SATELLES, Blackb. Hah. — Clarence River, Armidale, Sydney, 

 Gosford, N.S.W. 



R. ccECUS, Blackb. Hah. — Sydney, Gosford, N.S.W. 



R. PULCHER, Blackb. Hah. — Glen Innes, Armidale, N.S.W. : 

 Hobart, Bruni Island, Tasm. 



R. NiGRONOTATA, Blackb. Hah. — Gosford, N.S.W. 



R. UMBRATUS, Blackb. Hah. — Mount Lofty, S.A. 



R. APiCALis, Blackb. Hah. — Sydney, Armidale, N.S.W. 



R. NiTiDUS, Blackb. Flah. — Mount Barker, Swan River, W. A. 



R. FUGAX, Blackb. Hah. — Forest Reefs, Glen Innes, N.S.W.; 

 Melbourne, Vic. 



R. PLEBEius, Blackb. Hah. — Sydney. 



R. INSIPIDUS, Blackb. Hah. — Sydney. 



R. LiNDi, Blackb. Hah. — Swan River, Rottnest Island, Ger- 

 aldton, W.A.; Sydney, N.S.W.; Hobart, Tasm. 



R. BoucARDi, Crotch. Hah. — New South Wales. 



R. VENTRALis, Er. Hah. — Tasmania, New South Wales, West 

 Australia. 



R. DISCOLOR, Er. Hah. — Tasmania, New South Wales. 



