Giant cicada

The Giant Cicada is a common bug introduced in.

In
Upon donation to the museum, the exhibit has this to say about the Giant Cicada:

It can be found in the upper left room of the insect habitat, with the other cicadas.

Real-world information
Quesada gigas is a large cicada that can be found in America, although the Giant Cicada in-game is called the Bear Cicada of Japan. (熊蝉 "Kumazemi").