This name sits on a later shelf with no domain tag. Aristaenetus is the name this site attaches to a late-antique writer of fictional ἐπιστολαί, most likely fifth or sixth century CE. No biography is attached.
What this site holds is one collection of erotic letters. The author-blurb counted fifty; the work-blurb counts sixty-one in two books. They rework earlier Greek narrative, including Alciphron. One medieval manuscript is the witness (dated tenth/eleventh or thirteenth century in the stored notes).
The Greek title is Ἐπιστολαί. The heading is that book, not a novelist.
Available Works
Also published as PDF.