What is symbol and mythology of the constellation lacerta?

the symbol of Lacerta is a Lizard. And there is no mythology surrounding Lacerta.

The Demeter goddess looked for its Persefone daughter, who had been raptada by Hades. When it passed by the region of Atica, one felt thirsty and it requested water to drink a called woman Misme. The goddess drank with such avidity that caused the laughter of Ascxabalo, a son of Misme. Angered of which they smiled themselves of her threw on him the rest of the water and the boy became lizard or lacerta like Latin nomenclature of the constellation