The C-banded karyotypes of Metasyrphus corollae and Spherophoria scripta are presented. Their karyotypes show the same chromosome number 2n=8, the constitutive heterochromatin in both karyotypes has pericentromeric location, in M. corollae an additional C-band positive occuring on the third pair of autosomes. In the complement of the described species an exception is the whole euchromatin Y chromosome.
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