In Homer, Melanthius is the goatherd who does the inverse of Eumaeus: he sees the beggar at the gate and kicks him, he supplies the suitors with the best of the herd, he spits when he hears the king’s name. During the slaughter he sneaks weapons from the storeroom and tries to arm the suitors, gets caught, gets strung up by Eumaeus and Philoetius, and is tortured to death after the fight. The retelling cuts him entirely, which makes sense as a craft choice: Eumaeus carries the loyal-servant beat, Melantho carries the betrayal among the household women, and adding her brother on top would split the moral weight without adding a new note. The slaughter chapter stays focused on the suitors and the maids, not on a third tier of household traitors. He is one of the cleanest cuts in the porting, a character whose function is already covered by other voices in the room.
Melanthius
Canonical Homer. The disloyal goatherd, brother to Melantho. Sides with the suitors. Cut from the retelling.