Pelecocera

Mengual, Ximo, Kazerani, Farzaneh, Talebi, Ali Asghar & Gilasian, Ebrahim, 2015, A revision of the genus Pelecocera Meigen with the description of the male of Pelecocera persiana Kuznetzov from Iran (Diptera: Syrphidae), Zootaxa 3947 (1), pp. 99-108 : 106

Key to the species of Pelecocera

(Translated and modified from Kuznetzov 1989)

1 Pleuron very pollinose: dense pollinosity covering anepisternum, anepimeron, katepisternum, katatergum and meron ( Figs 3, 5 ). Frons broad, broader than eye width ( Figs 4, 6 , 7 ). Male with yellow abdominal markings ( Figs 1, 2 ); female without yellow abdominal markings ( Figs 10, 11 )...................................................................... 3

- Pleuron less pollinose: most of katepisternum, katatergum and meron shining; posterior anepisternum may be pollinose ( Figs 12, 14 , 16 ). Frons narrower, width of frons less than eye width ( Figs 8, 9, 15 ). Male and female with yellow abdominal markings ( Figs 13, 14 , 18 )...................................................................................2

2 Postpronotum black, slightly pollinose ( Figs 14 , 16 ). Male: eye margins almost parallel on frons level ( Fig. 18 ) [Nearctic, East coast]............................................................................. P. pergandei (Williston)

- Postpronotum yellow, partly pollinose ( Figs 12, 13 ). Male: eyes approximating to each other half way between antennal insertions and the anterior ocellus ( Figs 8, 13 ) [Palaearctic, from Europe into European parts of Russia and Siberia].................................................................................................. P. tricincta Meigen

3 Male: postpronotum dark ( Figs 2, 5 , 19 ); scutellum black ( Figs 2 , 19, 20 ). Male genitalia: surstylus with a small incision on the dorsal margin ( Fig. 22 ). Female: frons at level of antennal insertions about 1.5 times broader than eye width ( Fig. 7 ); basoflagellomere with an apical extension (Fig. 2.2 in Kuznetzov 1989) [from Central Europe into European parts of Russia and the Near East]............................................................................. .. P. latifrons Loew

- Male: postpronotum yellow ( Figs 1, 3 ); scutellum black with yellow fascia on posterior margin ( Fig. 1 ). Male genitalia: surstylus without incision on dorsal margin ( Fig. 23 ). Female: frons at antennal base level about 2.5 times broader than eye width; basoflagellomere not extended apically ( Figs 7, 11 ; Fig. 1.2 in Kuznetzov 1989) [ Iran].............. P. persiana Kuznetzov

Figures

FIGURES 1 – 6. 1. Pelecocera persiana, male, dorsal view (scale: 2 mm). 2. Pelecocera latifrons, male, dorsal view (scale: 2 mm). 3. Pelecocera persiana, male, lateral view (scale: 2 mm). 4. Pelecocera persiana, male, frontal view (scale: 1 mm). 5. Pelecocera latifrons, male, lateral view (scale: 2 mm). 6. Pelecocera latifrons, male, frontal view (scale: 1 mm).

FIGURES 7 – 15. 7. Pelecocera latifrons, female, frontal view (scale: 1 mm). 8. Pelecocera tricincta, male, frontal view (scale: 1 mm). 9. Pelecocera tricincta, female, frontal view (scale: 1 mm). 10. Pelecocera latifrons, female, dorsal view (scale: 2 mm). 11. Pelecocera latifrons, female, lateral view (scale: 2 mm). 12. Pelecocera tricincta, male, lateral view (scale: 2 mm). 13. Pelecocera tricincta, male, dorsal view (scale: 2 mm). 14. Pelecocera pergandei, female, lateral view (scale: 2 mm). 15. Pelecocera pergandei, female, frontal view (scale: 1 mm).

FIGURES 16 – 23. 16. Pelecocera pergandei, male, lateral view (scale: 2 mm). 17. Pelecocera latifrons, lectotype male, frontal view (scale: 1 mm). 18. Pelecocera pergandei, male, dorsal view (scale: 2 mm). 19. Pelecocera latifrons, lectotype male, dorsal view (scale: 2 mm). 20. Pelecocera latifrons, lectotype male, lateral view (scale: 2 mm). 21. Pelecocera latifrons, lectotype male, labels. 22. Pelecocera latifrons, lectotype male, lateral view male genitalia (scale: 0.5 mm). 23. Pelecocera persiana, male, lateral view male genitalia (scale: 0.5 mm).