See W. Barker, The Adages of Erasmus (Toronto: University of Toronto Press, 2001), pp. 100-103. Ἐν οἴνῳ ἀλήθεια: Diogenianus, Cent. 4.81. See Andreas Schottus, Paroimiai hellēnikai (Antwerp: Plantin, 1612), p. 215.
Alc. fr. 366 Voigt: "οἶνος, ὦ φίλε παῖ, καὶ ἀλάθεα" (oinos, ō phile pai, kai alāthea), "Wine, dear boy, and truth...". Nothing is known about the poem except for these words, which are quoted by a later scholiast. See G. Tsomis, Zusammenschau der Frühgriechischen Monodischen Melik: Alkaios, Sappho, Anakreon (Stuttgart: Franz Steiner, 1999), pp. 160-161.