Raja Brooke Butterfly
From Nookipedia, the Animal Crossing wiki
The Raja Brooke Butterfly (アカエリアゲハ, Akaeriageha), also referred to as Raja B. Butterfly or Raja Brooke, is an uncommon type of tiger butterfly first introduced in City Folk. It is the only butterfly to be attracted to water, rather than plants. It is usually active from 8 AM to 5 PM.
Donating to the Museum
In City Folk
It can be found in the bottom left area of the insect exhibit, flying around the pond.
In New Leaf
Upon being donated, the butterfly can be found in the first room of the bug exhibit resting on flowers with the other butterflies. The exhibit has this to say about the Raja Brooke Butterfly:
Bug Encyclopedia Information
In City Folk
The butterfly is actually a type of birdwing. It has distinctive black and electric-green markings, which are more prominent in the males, while the females have white markings. Both have a red head and another strip of red afterward, which is called a collar. It was named by Alfred R. Wallace in 1855, after James of Sarawak, the Rajah of Sarawark. It is also called the Rajah Brooke butterfly, sometimes mistaking the Animal Crossing spelling as a mistake - though both are acceptable. They can be found in the rainforests of Borneo and the Malaysian Peninsula, and is featured as the national butterfly of Malaysia. It is registered as being under protection.
Names in other languages