Dung beetle

The Dung Beetle is a bug in the introduced in. Beginning in, they appear during winter, rolling snowballs. In, they instead appear from spring to fall and roll the soccer, basketball, or volleyball balls found around the player's town.

In
In, Dung Beetles cannot be caught on another player's island, since snowballs do not appear when the player's airport gates are open.

Donating to the museum
As with all insects in the Animal Crossing series, the Dung Beetle can be donated to the museum followed by a small talk by Blathers, the curator.

In
After donation, the Dung Beetle can be found rolling a piece of dung in the lower terrace in the smaller dirt circle, sharing the exhibit with the Migratory Locust.

In
Since Blathers does not talk about the bug, the exhibit provides the information as follows:

In
When donated, it is found in the large desert sand tank alongside the Scorpion in the back room of the bug exhibit, next to the tarantula tank.

Real-world information
Members of the insect family Scarabaeidae feed almost exclusively on feces and decaying matter. Many species have a good sense of smell. Dung beetles lay their eggs in dung. There are around 30,000 species of scarabaeidae worldwide.