  The object of this paper is to describe an explicit two--parameter family of
logarithmic flat connections over the complex projective plane. These
connections have dihedral monodromy and their polar locus is a prescribed
quintic composed of a circle and three tangent lines. By restricting them to
generic lines we get an algebraic family of isomonodromic deformations of the
five--punctured sphere. This yields new algebraic solutions of a Garnier
system. Finally, we use the associated Riccati one--forms to construct an
interesting non--generic family of transversally projective Lotka--Volterra
foliations.
