The reference to Pindar seems to be to a passage in the 4th Isthmian Ode:
"In his [Herakles'] honor, above the Elektran Gates
we citizens prepare a feast
and a newly built circle of altars and multiply
burnt offerings for the eight bronze-clad men who died,
the sons that Megara, Kreon's daughter, bore to him.
For them at sunset the flame rises
and burns all night long
kicking heaven with its savor of smoke."
(Translated by William H. Race)
In Pausanias' Description of Greece (2nd century A.D.), in describing Thebes (9.11) he says, "There is a Herakleion here, with a white stone statue by Xenokritos and Eubios of Thebes, called the Champion, and an ancient wooden idol the Thebans believe is by Daidalos." There is a footnote in the Penguin translation of Pausanias to the effect that the church of Hagios Nikolaos stands on this site.
Herakles...
Didn't he originate the Greek version of the silly walk and the dead parrot?
This is an English translation. The Greek paper is no doubt written in Greek.