Source of Invocation of the Autochthons

Substitute conjuration of Subordinates:
I call ye: the holy. great of power, great of glory, great of strength.
the holy autochthons, that art the assist,ants of tbe great god, the pow-
er:ful chief daimons: Ye who art inhabita/lts of Chaos, of Erebos, of
the abyss, of the depth of earth ,dwelling in the recesses of heaven,
lurking in the dark corners of houses, shrouded in dark clouds;
Who ‘art watchers of hidden things .and guardians of secrets; The
leaders of those’ in the underworld, … .

Does anyone know the source for the above invocation?

The source is PGM IV, 1331