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 : 44-45

Key to the European species of Pipiza luteitarsis group

1 Hind femora without pair of ventral longitudinal ridges at the distal end (as on Fig. 12 ); ventral part of basoflagellomere reddish ( Figs. 4–9 ); male genitalia: hypandrium with short lower gonocercus (about 1/3 length of theca; Figs. 19 , 21 , 23 , 25 : lgc) ............................................ Pipiza luteitarsis species-group... 2

- Hind femora with pair of ventral longitudinal ridges at the distal end (as on Fig. 13 : lr); basoflagellomere dark; male genitalia: hypandrium with long lower gonocercus, in lateral view (about 3/4 length of theca; as on Fig. 27 : lgc) ................................................................................other West-Palearctic Pipiza species

2 Holoptic: males...........................................................................................................................................3

- Dichoptic: females.......................................................................................................................................6

3 Abdomen short and broad (tergite 4 more than 2 times as wide as long, Fig. 17 : T4), usually with pair of pale spots on tergites 2 and 3 ( Fig. 17 ); marginal ridge of abdomen well defined ( Fig. 17 ); body predominantly black haired; male genitalia on Figs. 25, 26 .................................. Pipiza quadrimaculata (Panzer)

- Abdomen elongated (tergite 4 less than 2 times as wide as long, as on Fig. 15 : T4), without, or only with a pair of pale spots on tergite 2; marginal ridge of abdomen less conspicuous (as on Fig. 15 ); body predominantly pale haired........................................................................................................................................4

4 Face pale haired; basoflagellomere elongated (almost 1.5 times longer than wide, Fig. 4 ); only metatarsus of hind legs darkened; tergite 2 with long sticking out hairs ( Fig. 10 ); male genitalia: basal part of surstyli

with well-developed semicircular lobe ( Figs. 19, 20 : sl) ....................................... Pipiza luteibarba n. sp. - Face predominantly black haired; basoflagellomere short, oval (wider than long); tarsi of all legs partly darkened or at least of middle and hind legs; tergite 2 without long sticking out hairs (as on Fig. 11 ); male genitalia: surstyli with reduced or with small basal semicircular lobe ( Figs. 21–24 : sl)............................5

5 Male genitalia: surstyli with small basal semicircular lobe surpassing epandrium ( Figs. 23, 24 : sl); inner part of basal semicircular lobe with dense pale spines ( Fig. 24 : sl) ..................... Pipiza accola Violovitsh

- Male genitalia: surstyli with reduced basal semicircular lobe not surpassing epandrium and without inner spines ( Figs. 21, 22 : sl) .................................................................................. Pipiza luteitarsis Zetterstedt

6 Frons without pollinose lateral spots as in Fig. 3 ; body hairs very short; wing densly microtrichose, without bare areas in cells BR and BM .......................................................... Pipiza quadrimaculata (Panzer)

- Frons with pollinose lateral spots as in Figs. 1 and 2 ; body hairs longer; wing with bare areas in cells BR and BM........................................................................................................................................................7

7 Tergite 5 longer than wide ( Fig. 16 : T5)......................................................... Pipiza luteitarsis Zetterstedt

- Tergite 5 wider than long (as in Fig. 14 : T5)..............................................................................................8

8 Basoflagellomere short, oval (slightly longer than wide, Fig. 9 ); frons in the level of anterior end of pollinose lateral spots broader than eye diameter (dorsal view) ................................. Pipiza accola Violovitsh

- Basoflagellomere elongated (1.5 times longer than wide, Fig. 5 ); frons in the level of anterior end of pollinose lateral spots narrower than eye diameter (dorsal view) ................................. Pipiza luteibarba n. sp.

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 21, 22. Male genitalia of Pipiza luteitarsis. 21. lateral view; 22. dorsal view of epandrium; sl - semicircular lobe of surstylus. Scale 0.1 mm.

FIGURES 23, 24. Male genitalia of Pipiza accola. 23. lateral view; 24. dorsal view of epandrium; sl - semicircular lobe of surstylus. Scale 0.1 mm.

FIGURES 25, 26. Male genitalia of Pipiza quadrimaculata. 25. lateral view; 26. dorsal view of epandrium. 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.

FIGURES 14 – 18. Abdomen, dorsal view. 14, female 15, male, Pipiza luteibarba n. sp.; 16, female, Pipiza luteitarsis; 17, male, 18, female, Pipiza quadrimaculata; T 4 – tergite 4; T 5 – tergite 5. Scale 1 mm.

FIGURES 10, 11. Tergites 1 – 3 of male, lateral view. 10. Pipiza luteibarba n. sp.; 11. Pipiza luteitarsis; T 1 – tergite 1; T 2 – tergite 2; T 3 – tergite 3. Scale 1 mm.

FIGURES 1 – 3. Frons of female, dorsal view. 1. Pipiza luteitarsis; 2. Pipiza luteibarba n. sp.; 3. Pipiza quadrimaculata. Scale 1 mm.