The Pelesit is a Malaysian vampire that accompanies the Polong in its travels. Some stories claim that it appears as a house cricket. It has a razor sharp tail that it uses to burrow into a victim, making a sound when the hole is big enough for the Polong to enter it.
In order to create a Pelesit, one would dig up a recently deceased infant and put the corpse on an ant hill. After a while, the child would cry out and the tongue would have to be bitten off. The tongue would be dipped in a special coconut oil and buried for three nights. After the third night, the tongue would turn into a Pelesit.