Further studies on the water bugs of the genus Anisops (Hemiptera:Notonectidae) in Ceylon

In the present paper a short account is given of the biology of Anisops in Ceylon, their distribution and descriptions of Anisops ali and A. occipitalis. All the other Ceylonese species are described by Leong and Fernando (1962 . Brooks (1951) has given detailed descriptions of all the Ceylonese species except Anisops ali. A revised key to the Ceylonese Anisops is given and includes for the first time A. ali whose male has so far not been described and therefore omitted from the keys of Brooks (1951) and Leong and Fernando (1962).