BY ARTHUR M. LEA. 529 



Hah. — Galston, N.S.W. (Dumbrell and Lea). 



An abundant species. The elytra appear to be iridescent from 

 some directions. This and the following species belong to Dr. 

 Sharp's 1st group; both somewhat resemble labratus, but may be 

 at once distinguished by the complete absence of elytral scratches. 



COPELATUS PUNCTIPENNIS, n sp. 



Shape and colour as in the preceding species. 



Head almost impunctate. Prothorax with small punctures on 

 disc and with rather strong submarginal punctures ; strigose- 

 punctate elsewhere. Elj-tra densely and (for the genus) moder- 

 ately strongly punctate and with two moderately distinct rows of 

 small punctures. Coxte at sides with a few deep scratches, 

 towards the base feebly longitudinally strigose; basal segments of 

 abdomen finely strigose. Length 5 mm. 



ZTrt^.— Tarago, N.S.W. 



Strongly resembles the preceding, but may be at once dis- 

 tinguished by the coarser puncturation. Another specimen 

 differs in having the coxfe rather strongly strigose. 



C. XIGROLINEATUS, Sharp. Hab. — Upper Ord and Behn Rivers, 

 W.A. 



C LABRATUS, Sharp. Hab. — Sydney, Galston, Clarence River, 



T^.S.W. 



C. ATER, Sharp. Hah. — W.A. (widely distributed). 



C. ACUDUCTUS, Clark. Hah. — Forest Reefs, Tarago, N.S.W. 



C. IRREGULARIS, Macl. Hah. — Queensland. 



LaNCETES LANCEOLATUS, Clark. Hab. — N.S.W.; W.A. 



Rhantus pulverosus, Steph. Hah. — Australia (widely dis- 

 tributed and abundant). 



Hydaticus bihamatus, Aube. Hah. — Q.; N.S.W. 



H. Damelii, Sharp. Hab. — Sydney. 



H. PULCHER, Clark. Hah. — Sydney. 



Rhantaticus signatipennis. Lap. i/«6.— Sydney. 



