I only remember two types of balverines. the White Balverine and the followers of the White Balverine. all reddish brown. Also in See The Future DLC there is a new Poisoned Balverine.
The red Balverines are slightly larger than the brown ones, have a more reddish tint (possibly blood.) and are slightly stronger, they can be harder to tell apart from the brown balverines. -Asker
They are called Blooded Balvarines.