  Gauge theories in the presence of codimension two vortex defects are known to
be related to the theories on orbifolds. By using this relation we study the
localized path integrals of 2D N=(2,2) SUSY gauge theories with point-like
vortex defects. We present a formula for the correlation functions of vortex
defects inserted at the north and the south poles of squashed spheres. For
Abelian gauge theories the correlators are locally constant as functions of the
parameters of the defect, but exhibit discontinuity at some threshold values
determined by the deficit angle at the poles and the R-charges of the matter
multiplets. For non-Abelian gauge groups the correlators depend non-trivially
on the types of gauge symmetry breaking due to the defects.
