On this noun (related to the verb τάσσω , tau 151) see generally LSJ s.v. Besides its general application in poetry such as is quoted here, it had a specific attestation as the ancestral commander of the Thessalians.
[1] Same glossing in ps.-Zonaras; similarly in the scholia to the Aristophanes and Homer passages about to be quoted.
[2] Aristophanes, Knights 159 (though instead of the unmetrical Ἀθηναίων , in the Suda and elsewhere, read Ἀθηνῶν "Athens"). What follows here comes from the scholia there.
[3] A version (also in Herodian and the Aristophanic scholia) of Homer, Iliad 23.160. The alternative, preferred by most modern editors, has not οἱ ταγοί but οἱ τ' ἀγοί ; cf. generally under alpha 314 (end).
[4] Greek Anthology 7.243.5-6 (the last elegiac couplet in an epigram ascribed to Lollius Bassus: but read ἐμεῖ’ εὐβόστρυχον εἰχόνα θηρός instead of the Suda’s ἐμεῖο βοόστρυχον εἰκόνα θήρης ).