257. * Subisotoma pusilla (Schäffer, 1900)
Isotoma pusilla Schäffer, 1900b: 254 .
Subisotoma pusilla (Schäffer): Stach 1947: 111.
Distribution in Vietnam.
Northwest: Lào Cai (Sa Pa).
Authorship. RD: Nguyễn T.T. 1994.
CI: Nguyễn T.T. 1995c.
Type locality. Bad Urach, Württemberg (Germany).
General distribution. Central Europe. The easternmost records are probably erroneus (Potapov 2001; Potapov et al. 2009).
Remarks. Vietnam records will need verification.