The first taxonomically identifiable butterfly on a stamp

The first taxonomically identifiable butterfly on a stamp was issued from Sarawak,

The first taxonomically identifiable butterfly on a stamp was issued from Sarawak, Malaysia in 1950 representing a birdwing butterfly, Rajah Brooke’s birdwing (Troidesbrookiana) alongside King George VI’s portrait. This butterfly is found in the rainforests of the Thai-Malay peninsula, Borneo, Natuna, Sumatra and other islands. The butterfly was named by the naturalist Alfred Russel Wallace in 1855 after James Brooke, the Rajah of Sarawak. It is the national butterfly of Malaysia.