Pipiza luteitarsis

Vujić, Ante, Radenković, Sne Ž Ana & Polić, Dubravka, 2008, A review of the luteitarsis group of the genus Pipiza Fallén (Diptera: Syrphidae) with description of a new species from the Balkan Peninsula, Zootaxa 1845, pp. 33-46 : 34

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.

Figures

FIGURES 12, 13. Hind femur of male, ventral view. 12. Pipiza luteibarba n. sp.; 13. Pipiza festiva; lr – longitudinal ridge. Scale 1 mm.

FIGURES 4 – 9. Antenna, lateral view. 4, male, 5, female, Pipiza luteibarba n. sp.; 6, male 7, female, Pipiza luteitarsis; 8, male, 9, female, Pipiza accola. Scale 1 mm.

FIGURES 19, 20. Male genitalia of Pipiza luteibarba n. sp. 19. lateral view; 20. dorsal view of epandrium; th – theca of hypandrium; b – basale of epandrium; lgc – lower gonocercus; ugc – upper gonocercus; sl - semicircular lobe of surstylus. Scale 0.1 mm.

FIGURES 27, 28. Male genitalia of Pipiza festiva. 27. lateral view; 28. dorsal view of epandrium; th – theca of hypandrium; lgc – lower gonocercus. Scale 0.1 mm.