

V 



ON 



AQUATIC CARNIVOBOUS COLEOPTERA 



y 



OR 



DYTISCID^. 



BY 



DAVID SHARP, M.B., 



HON. MEM. OF THE INSTITUTE OF NEW ZEALAND: MEMBER OF THE ENTOMOLOGICAL SOCIETIES OF 

 LONDON, FRANCE, BERLIN, STETTIN, BELGIUM, AND SWITZERLAND, ETC., ETC. 



Plates VII. to XVIII. 



[FROJI THE SCIENTIFIC TRANSACTIONS OF THE ROYAL DUBLIN SOCIETY. VOL. 3. SER. IL} 



DUBLIN: 



PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 



PRINTED BY ALEX, THOM & CO., 87, 88, & 89, ABBEY-STREET, 



THE QUEEN'S PRINTING OFFICE. 

 FOR HER MAJESTY'S STATIONERY OFFICE. 



April, 1882. 



