They occupied a district of Picenum, bounded by the river Vomanus (modern Vomano) on the south and apparently by the stream called by Pliny the Albula on the north; but the Albula cannot be identified with certainty, and the text of Pliny may be corrupt as well as confused.
The editors of the Encyclopædia Britannica Eleventh Edition, citing Pliny iii.
The Ager Praetutianus is mentioned by Livy and Polybius, as well as by Pliny, as a well-known district, and Ptolemy even distinguishes it altogether from Picenum, in which, however, it was certainly generally comprised.
[4] And the editors of the 1911 Encyclopædia Britannica, based on their interpretation of Pliny's text assign the towns of Castrum Novum and Truentus to the tribe.
Pliny mentions the Ager Palmensis in close connection with the Praetutii;[5] but this appears to have been only a small district, which was celebrated, as was the Praetutian region generally, for the excellence of its wines.