[206] κατειλύσαντε: the use of the dual shows that Ap. believed in Zenodotus' theory that in Hom. sometimes the dual and pl. are used indiscriminately; see Leaf on Il. 1. 567, 5. 487, etc. Merkel suggests that Ap. is imitating h. Hom. Ap. 487, “ἱστία μἐν πρῶτον κάθετον λύσαντε βοείας”, where the dual is clearly used for the pl. See also on 1. 384.