Kerzhner, I. M.; Brailovsky, H.
(2003)
The following new synonymy is established: Hygia opaca (Uhler, 1860) = H. japonica Ahmad, 1969, syn. n., H. lativentris (Motschulsky, 1866) = H. touchei (Distant, 1901), syn. n. Hygia opaca opaca sensu Ahmad, 1969 is a ...