Pausanias Description of Greece 1.41.6

[6] It is evident that Alcathous arrived from Elis just at the time when Nisus had died and the Megarians had lost everything. Witness to the truth of my statements the fact that he built the wall afresh from the beginning, the old one round the city having been destroyed by the Cretans.
  Let so much suffice for Alcathous and for the lion, whether it was on Cithaeron or elsewhere that the killing took place that caused him to make a temple to Artemis Agrotera and Apollo Agraeus. On going down from this sanctuary you see the shrine of the hero Pandion. My narrative has already told how Pandion was buried on what is called the Rock of Athena Aethyia (Gannet). He receives honors from the Megarians in the city as well.

[6] It is evident that Alkathoos arrived from Elis just at the time when Nisos had died and the people of Megara had lost everything. Witness-to-the-truth [ marturion] of what I say is that he built the wall [ teikhos] all over again, from the start, since the old enclosure [ peribolos] [round the city] had been destroyed by the Cretans. Let so much suffice for memory [ mnēmē] about Alkathoos and the lion, whether it was on Kithairon or elsewhere that the killing took place that caused him to make a temple [ nāos] to Artemis Agrotera and Apollo Agraios. As one goes down from this sanctuary [ hieron] there is the hero-shrine [hērōion] of Pandion. My narrative [ logos] has already told how Pandion was buried on what is called the Rock [ skopelos] of Athena Aithuia [‘Gannet’]. He receives honors [ tīmai] from the people of Megara in the city as well.