Ἐρατώ: this invocation of Erato, the Muse of love and the poetry of love, is imitated by Virgil, Aen. 7. 37, “Nunc age, qui reges, Erato, quae tempora rerum”, etc., but, as Conington points out, the address to Erato there is much less appropriate.
παρά θ᾽ ἵστασο: Ap. did not follow Zenod. and Aristarch. who read παρίσταο in Il. 10. 291. ἔνισπε: the same form occurs in 4. 1565; ἐνίσπες in 1. 487, 832. Both are found in Hom., Od. 3. 101, “νημερτὲς ἐνίσπες”, 4. 642, “νημερτὲς ἔνισπε” (v. Curt. G.V. 1 195).