  The main objective of this comment is to correct the density number of
created fermions by an electric field in the (1+1) dimensional de-Sitter
space-time communicated by V. M. Villalba in Phys. Rev. D 52, 3742 (1995). It
is shown how the positive and negative energy solutions are connected to one
another by the charge conjugation. Some concluding remarks are made.
