Latromis was one of the sons of Dionysus and Ariadne. In view of the 'winy' interpretation that can be put on the names of all his brothers (Oenopion, Thoas, Staphylus, Euanthes, Tauropolus), we ought to look for one here. Perhaps it can be found in a blend of latax, 'drop of wine' and rome, 'strength'?