Glowsquito

The Glowsquito is a neutral mob added by Infernal Expansion. It can fly, and will attack any Blindsights in its vicinity. In its default behavior, it will drain Glowstone of its light, forming Dimstone and, eventually, Dullstone. If allowed to do this, the Glowsquito will drop Glowcoke when slain.

If it is killed by a Blackstone Dwarf, it will drop the Flush music disc.