 He is known to have written on Hesiod, the Greek lyric poets, notably Bacchylides and Pindar, and on drama; the better part of the Pindar and Sophocles scholia originated with Didymus.The Aristophanes scholia also cite him often, and he is known to have written treatises on Euripides, Ion, Phrynichus's "Kronos", Cratinus, Menander, and many of the Greek orators including Demosthenes, Aeschines, Isaeus, Hypereides and Deinarchus.Besides these commentaries there are mentions of the following works, none of which survives