The Vice Beetle is an enemy in Castlevania: Portrait of Ruin. It is an insect with crushingly powerful jaws who crawls on the ceiling.
An insect with powerful jaws that incessantly moves along the surface it is affixed to, making loops endlessly unless destroyed. It breaths poisonous clouds straight out. In the Nest of Evil, it can be seen moving extremely fast and in groups.
The Spittle Bone is a similar enemy that either drips poison or breathes flames.