chiflera and bruja (spanish explanations ok too)

Non-PRO Aymara to English Other Religion

For an upcoming presentation about the brujas that prepare a "mesa" I'm having trouble finding the right term for the women who do this. Also would be happy for contact info of any Aymaran speakers that could assist with a few other questions. Do chilferas, for example, only sell herbs? do you say layqa or bruja for the women who prepare a mesa? is it only women making these? Yatiri seems a bit different to me.
thanks a bunch in advance - dave