Diglett

Diglett (Japanese: ディグダ Digda) is a Ground-type Pokémon introduced in Generation I.

It evolves into Dugtrio starting at level 26.

In Alola, Diglett has a dual-type Ground/Steel regional form. It evolves into Alolan Dugtrio starting at level 26.

It is ecologically similar to Wiglett; however, the two are separate species.