Abstract
A bounded operator T on a Hilbert space is hyponormal if T*T - T*T is positive. We give a necessary condition for the hyponormality of Toeplitz operators on weighted Bergman spaces, for a certain class of radial weights, when the symbol is of the form f + (g) over bar, where both functions are analytic and bounded on the unit disk. We give a sufficient condition when f is a monomial.