Publications on Butterflies
The Butterfly Fauna of Ceylon
by W.G.O. Woodhouse 1950 (out-of-print)

The Butterflies of Ceylon
by B. D'abrera 1998 (out-of-print)

A Selection of the Butterflies of Sri Lanka
by John and Judy Banks 

The Fauna of British India, Ceylon and Burma: Butterflies
by G. Talbot 1939 Vol 1 & 2 (Out-of-print)

Publications on Dragonflies
The Dragonflies of Sri Lanka
by Terence DeFonseka 2000

The Fauna of British India, Ceylon and Burma: Odonata
by F.C. Fraser 1933 Vol 1, 2 & 3 (Out-of-print)

Others
The Fauna of British India, Ceylon and Burma: Moths
by Hampson et al,  Vol 1, 2, 3, 4 & 5

The Fauna of British India, Ceylon and Burma: Various other insect orders