Photo by W. P. Dando, F.Z.S.] 



GREAT WATER-BUG. 

 Very similar species are found in Africa, Asia, and America. 



[Regent's Park. 



Photo by W. P. Dando, F.Z.S.} 



GREAT WATER-BUG. 

 These insects live in water during the day, and fly about in the evening. 



727 



[Regent' Park. 



