αὐτὸν, alone; cp. O. T. 221, O. C. 1650.—“ἄσκευον”...ἀσπίδων κ.τ.λ., ‘unfurnished with’ them: for the gen., cp. 1002: O. T. 191“ἄχαλκος ἀσπίδων”: O. C. 677“ἀνήνεμον...χειμώνων” (n.). The adj. occurs also in O. C. 1029“οὐ ψιλὸν οὐδ᾽ ἄσκευον”, ‘not without accomplice or resource.’
ἀσπίδων τε καὶ στρατοῦ = “ὡπλισμένου στρατοῦ”, a rhetorical hendiadys, like ‘without arms or numbers.’— δόλοισι, in requital of the “δόλος” on the side of the murderers (v. 197).
χειρὸς goes with σφαγάς (476 “δίκαια χειροῖν κράτη”): the vengeance is to be won by his own right hand, not by means of allies.
κλέψαι, to effect by stealth: Ai. 1137“κλέψειας κακά”.
