DemiDevimon

DemiDevimon is an evil Digimon in the anime, Digimon He resembles a bat.

Digimon Adventure
DemiDevimon is a flunky that works for Myotismon.

He first appeared when he spotted T.K. and Tokomon. Tai and Agumon told T.K. that DemiDevimon was lying that the mushrooms were forgetful. Then Tokomon Digivolved to Patamon to fight DemiDevimon, forcing him to retreat.

Later, DemiDevimon did more sheming for Matt, Izzy, and Mimi. When they all failed, he gets punished for failing Myotismon numerous times. Then DemiDevimon, Myotismon, and his other flunkies went to the Real World to find the 8th Digidestined child (which turns out to be Kari, Tai's little sister).

When Myotismon was vanquished, DemiDevimon revived him by using bats to steal the energy of defeated Digimon to become his ultimate form, VenomMyotismon. But VenomMyotismon, no longer needing DemiDevimon, sucked him into his mouth and consumed him.

Digimon Data Squad
Three DemiDevimon appeared in the Real World along with a Vilemon. They went to the horse track to help a man gain lots of money. The three DemiDevimon fought Agumon when Vilemon grew larger. After Vilemon was destroyed by GeoGreymon, the three DemiDevimon were destroyed by GeoGreymon as well.