Convobat

Convobat is Maximal from the Beast Wars: Uprising portion of the Generation 1 continuity family.

You can't see me!

_{This character has no official visual representation in any Transformers product or media... yet, at least.}

Convobat is a Maximal.

Fiction

Ask Vector Prime

Vector Prime clarified that while in many realities, Optimus Prime or Optimus Primal had bat forms, in realities such as Primax 209.0 Gamma, Convobat was his own individual. Ask Vector Prime