  After the nice result introduced by Belotto in [1] concerning the local
monomialization of a singular foliation given by n first integrals, this work
is a continuation in the same spirit. In this paper, we introduce a important
conjecture about local monomialization of a singular foliation of Darboux type
(see section 1). This conjecture can be used to study pseudo-abelian integrals
[2,4].
