Woodmuncher

The Woodmuncher is a species of trunksumer that nibbles on the stems of Pikmin, gradually reverting their maturity to the previous stage.

=In fanon games=

In Pikmin E
The Woodmuncher is a trunksumer exclusive to Mission Mode in Pikmin E. It is a small, spider-like creature made of wood that is controlled by hostile termites. It nibbles on the stems of Pikmin to downgrade their current maturity stage.