From Nookipedia, the Animal Crossing wiki
The Robust Cicada (ミンミンゼミ, Minminzemi) is an insect found in Doubutsu no Mori, Animal Crossing: Wild World, Animal Crossing: City Folk, and Animal Crossing: New Leaf. It makes a unique sound which is different to other cicadas, which sounds like a series of screaming "Beep! Beep! Beeeeeeeeep!". It is worth either 200 Bells or 300 Bells, depending on the game.
Donating to the Museum
In Animal Crossing
"Cicadas. What can one say about these odd insects? They are certainly...noisy! Noisy enough, I should say! Their horrid caterwauling is awfully irritating, you know. About as musical as a train wreck, eh wot? I'm sure that the cicadas have quite valid reasons for such boisterous behavior, but I dare say there are limits. And they have those membranes on their abdomens, which vibrate to create those disturbing tones...Odius."
In Wild World
"When a female robust cicada approaches, the male will change its call, eh wot? To think that they're mere bugs and they play these mind games... Disgusting!"
In City Folk
"Fittingly enough, the robust cicada can issue a robust, loud chirp...and it does so quite often. I've heard this beastie's impertinent cry so often that I've grown rather good at imitating it. Listen! Chiiirp! CHIIIRP! CHIIir..."
It can be found in the middle terrace, on the front-most tree of the middle island, sharing it with the Brown Cicada.
When the player has caught the Robust Cicada, they can find information about the insect in the bug menu. Below is the information regarding the Robust Cicada:
The oncotympana maculaticollis (robust cicada) is a native to Korea, which is considered the typical Korean Cicada. It also a native to Japan, where they are commonly found. Much like all cicadas, the robust cicada has transparent wings, small bodies in comparison and large eyes on either side of their heads.
Names in other languages