Albino Mosquitoes were magical creatures.
Albino Mosquitoes were created by Zeddicus Zu'l Zorander to demonstrate that an enemy could conjure things no one else had ever imagined. Albino mosquito was also a euphemism for anything new and unexpected which harmed the enemy. They could also spread Albino Fever to those bitten.
This should not be referenced by creature as it was only used as a demonstrations by Zedd which means its existence at all was by his magic and he only made one.