Species from Pipiza luteitarsis group

One problem in revising Pipiza is the large group of taxa described from Russia: P. aurea Violovitsh, P. convexifrons Violovitsh, P. magnomaculata Violovitsh, P. m u t i n i Violovitsh, P. n i e l s e n i Violovitsh, P. tristis Violovitsh and P. tuvinica Violovitsh (Violovitsh 1988) . Original descriptions are unfortunately often incomplete. Studies of some available material (e.g. Finnish Museum of Natural History) showed that at least P. a u re a and P. magnomaculata (described from Russian Far East) belong to the species group analysed in this paper.

The Pipiza luteitarsis group, is characterized by the smooth hind femora without a pair of ventral, longitudinal ridges at the distal end (Fig. 12) and ventral part of basoflagellomere reddish (Figs. 4–9). The main synapomorphic characters of this species group were found in the structure of male genitalia. Lower gonocercus of hypandrium is very short, about 1/3 length of theca (Fig. 19: lgc). In other species of genus Pipiza, hypandrium always has long lower gonocercus, in lateral view it is about 3/4 length of theca (Fig. 27: lgc). The P. luteitarsis group comprises four species in the West Palaearctic.