Pill bug

The Pill Bug is a bug in the introduced in. It can be found underneath rocks and will come out if the player hits the rock with a shovel.

Donating to the museum
As with all insects in the, the Pill Bug can be donated to the museum by talking to Blathers, who will give a small speech about it.

In
Upon donation to the museum, the Pill Bug can be found crawling in the first room of the Insect section. The exhibit has this to say about the Pill Bug:

In
The pill bug can be found in the leftmost display case in the laboratory section of the bug exhibit, along with the Moth and Centipede

Real-world information
Pill Bugs, Armadillidium Vulgare, are from a genus of crustaceans that have been known to exist for at least 300 million years. Many members of the genus exist as marine crustaceans, but some have developed to live on the land while retaining their water-dependent lifestyle. Pill bugs can lay several hundred eggs at one time.

Their characteristic defense mechanism, which involves rolling into a protective ball, is copied in-game. The pill bug rolls into a ball when a player approaches it, making the insect much easier to catch than other ground-dwelling insects.