Maculinea nausithous (Bergsträsser, 1779) was recently discovered in two parts of the Transylvanian
basin. External characters of these populations completely agree with the original description of
Maculinea nausithous kijevensis (Sheljuzhko, 1928) and show some small but constant differences against
the Central European nominotypic populations. Since the habitats and host ant selection of these populations
are also different from the Central European populations, we consider M. nausithous kijevensis stat.
rev. as valid subspeciÀ c taxon. Specimens with the same external characters were also collected in northeastern
Romania, in Kazakhstan and in the western part of the Altai Mts. Therefore we believe that this
subspecies has a wider Euro-Siberian distribution.