Charles Ellicott Commentary Ezra 4:9

"then [wrote] Rehum the chancellor, and Shimshai the scribe, and the rest of their companions, the Dinaites, and the Apharsathchites, the Tarpelites, the Apharsites, the Archevites, the Babylonians, the Shushanchites, the Dehaites, the Elamites," — Ezra 4:9 (ASV)

Then wrote ... —This verse and the following provide the general superscription of the letter written by Persian officials for the Samaritans. This superscription, however, is introduced in a very peculiar manner and is to be followed by another introduction in Ezra 4:11.

Of the names by which the Samaritans saw fit to distinguish themselves: the Apharsites and Dehavites are Persians; the Babylonians, the original peoples of Babylon, Cuthah, and Ava (2 Kings 17:24); the Susanchites are from Susa; the Apharsathchites, probably the Pharathia-kites, a predatory people of Media; and the Archevites, inhabitants of Erech (Genesis 10:10). The Dinaites and Tarpelites can only be conjecturally identified.