Gimnomera nigricorpus, Ozerov, 2019

Ozerov, A. L., 2019, A review of the genus Gimnomera Rondani, 1866 (Diptera: Scathophagidae) of Russia, Russian Entomological Journal 28 (2), pp. 195-218 : 216-217

KEY TO THE SPECIES OF GIMNOMERA OF RUSSIA

1. Anterior margin of postpronotum with short erect black spinules ( Fig. 2 ) ........................................................... 2

— Anterior margin of postpronotum without erect spinules ( Fig. 3 ) ....................................................................... 18

2. Scutellum with a pair of apical scutellar setae only, basal scutellar or lateral scutellar setae absent ..................... 3

—Scutellum with two pairs of strong setae: a pair of basal or lateral scutellar and a pair of apical scutellar setae .... 6

3. Postpronotal lobe with strong seta ................................ 4

— Postpronotal lobe without strong seta .......................... 5

4. Dorsocentral presutural setae absent. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 8 , 24– 26 ................................................... G. alanica (Ozerov)

— Two pairs of dorsocentral presutural setae present (anterior pair sometimes small). Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 17 , 51–53 .... ....................................................... G. nigricorpus sp.n.

5. Vein R 1 bare on apical half of dorsal surface. Anepimeron bare. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 15 , 45–47 ............ G. mellina Becker

— Vein R 1 with several setulae on apical half of dorsal surface. Anepimeron with several hairs. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 14 , 42–44 ........................................... G. lasiostoma Becker

6. Vein R 1 bare dorsally on apical half .............................. 7

— Vein R 1 with several setulae dorsally on apical half (as in Fig. 4 ) ........................................................................... 9

7. Anepimeron bare. Fore tibia with 1–2 dorsal setae, 1 posterodorsal and 1 posterior setae except apicals. Mid tibia with 1 posterodorsal, 1 posterior, 1 anterodorsal except apicals ................................................................ 8

— Anepimeron with several hairs. Fore and mid tibiae without setae except apicals. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 19 , 57–59 ......... .......................................................... G. nudipedis sp.n.

8. Fore femur with 2–3 posterodorsal setae in apical quarter or third. Male sternite 4 ovoid, about as long wide ( Fig. 12 ). Cercal plate longer than wide ( Fig. 38 ) .................. ................................................. G. dorsata (Zetterstedt)

— Fore femur with 4–6 posterodorsal setae passing the middle of femur. Male sternite 4 rectangular, about 1.5 times long as wide ( Fig. 16 ). Cercal plate as wide as long ( Fig. 50 ) ................ G. montana Ozerov et Krivosheina

9. Anepimeron with several hairs .................................... 10

— Anepimeron bare ......................................................... 16

10. Postpedicel yellow. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 13 , 39–41 ................ ........................................................... G. hirta (Hendel)

— Postpedicel black ........................................................ 11

11. Postpronotal lobe without strong setae ..................... 12

— Postpronotal lobe with 1–2 strong setae .................... 15

12. Acrostichals as hairs in two rows. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 10 , 30–32 ................................................... G. castanipes (Becker)

— Scutum densely covered with numerous small yellow hairs, including acrostichal area, acrostichals not form rows ............................................................................ 13

13. Notopleuron with one seta. Fore coxa black. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 18 , 54–56 ................... G. novgorodovae (Ozerov)

— Notopleuron with 2 setae. Fore coxa yellow .............. 14

14. Thorax yellow .......................... G. tukuringra (Ozerov) (female, male unknown)

— Thorax black. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 11 , 33–35 ........................... .......................................... G. cuneiventris (Zetterstedt)

15. Scutum with 0–1 pairs of presutural dorsocentral setae and one pair of postsutural dorsocentral setae. Postpronotal lobe with one seta, offen small. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 10 , 30–32 ......................................... G. castanipes (Becker)

— Scutum with two pairs of presutural dorsocentral setae and 2–3 pairs of postsutural dorsocentral setae. Postpronotal lobe ussually with 2 strong setae. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 22 , 66–68 ..................................... G. tibialis (Malloch)

16. Postpronotal lobe without strong setae. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 20 , 60–62 .................................................. G. palliseta sp.n.

— Postpronotal lobe with 1–2 strong setae .................... 17

17. Postpedicel yellow. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 16 , 48–50 ................ ............................... G. montana Ozerov et Krivosheina

— Postpedicel black. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 21 , 63–65 ................ ........................................................... G. tarsea (Fallén)

18. Abdomen black .......................................................... 19

— Abdomen with yellow spots ........................................ 20

19. Scapus and pedicel yellow. Anepisternum, katepisternum and anepimeron mostly shining ............................. ......................................................... G. amica (Ozerov) (female, male unknown)

— Scapus and pedicel black. Lateral pleural sclerites of thorax greyish dusted (microtrichose). Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 9 , 27–29 ....................................... G. albipila (Zetterstedt)

20. Lateral pleural sclerites of thorax black completely. All setae on scutum and scutellum black. Male sternite 4 and 5, epandrium, cercal plate and surstyli as in Figs 23 , 69– 71 ................................................... G. ziegleri (Ozerov)

— Lateral pleural sclerites of thorax yellow, only anepimeron, meron and katetergite blackish. All setae on scutum and scutellum yellow ......................... G. speciosa (Ozerov) (female, male unknown)

Acknowledgements. This study was supported by research project of Moscow State University Zoological Museum (AAAA-A16-116021660077-3, depository of specimens, collecting of specimens and morphological study).

We are very grateful to Dr. Olga Ovchinnikova (ZISP) and Mrs. Galina Suleymanova (ZISP) for the loan of the material of Gimnomera for study.

Figures

Figs. 2–5. Gimnomera hirta (Hendel) (2, 4, 5) and Gimnomera ziegleri (Ozerov) (3): 2, 3 — anterior part of scutum, dorsally; 4 — fragment of wing; 5 — wing. Рис. 2–5. Gimnomera hirta (Hendel) (2, 4, 5) и Gimnomera ziegleri (Ozerov) (3): 2, 3 — переднЯЯ часть среднеспинки, сверху; 4 — фрагмент крыла; 5 — крыло.

Figs 8–13. Male sternites 4 (lower) and 5 (upper) of Gimnomera: 8 — G. alanica (Ozerov); 9 — G. albipila (Zetterstedt); 10 — G. castanipes (Becker); 11 — G. cuneiventis (Zetterstedt); 12 — G. dorsata (Zetterstedt); 13 — G. hirta (Hendel). Рис. 8–13. Стерниты 4 (вниЗу) и 5 (вверху) самца Gimnomera: 8 — G. alanica (Ozerov); 9 — G. albipila (Zetterstedt); 10 — G. castanipes (Becker); 11 — G. cuneiventis (Zetterstedt); 12 — G. dorsata (Zetterstedt); 13 — G. hirta (Hendel).

Figs 24–32. Epandrium, cercal plate and surstyli of Gimnomera spp.: 24–26 — G. alanica (Ozerov); 27–29 — G. albipila (Zetterstedt); 30 –32 — G. castanipes (Becker); 24, 27, 30 — dorsolateral view; 25, 28, 31 — lateral view; 26, 29, 32 — dorsal view. Рис. 24–32. Эпандрий, церки и сурстили Gimnomera spp.: 24–26 — G. alanica (Ozerov); 27–29 — G. albipila (Zetterstedt); 30–32 — G. castanipes (Becker); 24, 27, 30 — дорсолатерально; 25, 28, 31 — сбоку; 26, 29, 32 — сверху.

Figs 14–19. Male sternites 4 (lower) and 5 (upper) of Gimnomera: 14 — G. lasiostoma (Becker); 15 — G. mellina (Becker); 16 — G. montana Ozerov et Krivosheina; 17 — G. nigricorpus sp.n.; 18 — G. novgorodovae (Ozerov); 19 — G. nudipedis sp.n. Рис. 14–19. Стерниты 4 (вниЗу) и 5 (вверху) самцов Gimnomera: 14 — G. lasiostoma (Becker); 15 — G. mellina (Becker); 16 — G. montana Ozerov et Krivosheina; 17 — G. nigricorpus sp.n.; 18 — G. novgorodovae (Ozerov); 19 — G. nudipedis sp.n.

Figs 51–59. Epandrium, cercal plate and surstyli of Gimnomera spp.: 51–53 — G. nigricorpus sp.n.; 54–56 — G. novgorodovae (Ozerov); 57–59— G. nudipedis sp.n.; 51, 54, 57 — dorsolateral view; 52, 55, 58 — lateral view; 53, 56, 59 — dorsal view. Рис. 51–59. Эпандрий, церки и сурстили Gimnomera spp.: 51–53 — G. nigricorpus sp.n.; 54–56 — G. novgorodovae (Ozerov); 57–59— G. nudipedis sp.n.; 51, 54, 57 — дорсолатерально; 52, 55, 58 — сбоку; 53, 56, 59 — сверху.

Figs 42–50. Epandrium, cercal plate and surstyli of Gimnomera spp.: 42–44 — G. lasiostoma (Becker); 45–47 — G. mellina (Becker); 48–50 — G. montana Ozerov et Krivosheina; 42, 45, 48 — epandrium, cerci and surstyli, dorsolateral view; 43, 46, 49 — same, lateral view; 44, 47, 50 — same, dorsal view. Рис. 42–50. Эпандрий, церки и сурстили Gimnomera spp.: 42–44 — G. lasiostoma (Becker); 45–47 — G. mellina (Becker); 48–50 — G. montana Ozerov et Krivosheina; 42, 45, 48 — Эпандрий, церки и сурстили, дорсолатерально; 43, 46, 49 — то же, сбоку; 44, 47, 50 — то же, сверху.

Figs 33–41. Epandrium, cercal plate and surstyli of Gimnomera spp.: 33–35 — G. cuneiventis (Zetterstedt); 36–38 — G. dorsata (Zetterstedt); 39–41 — G. hirta (Hendel); 33, 36, 39 — dorsolateral view; 34, 37, 40 — lateral view; 35, 38, 41— dorsal view. Рис. 33–41. Эпандрий, церки и сурстили Gimnomera spp.: 33–35 — G. cuneiventis (Zetterstedt); 36–38 — G. dorsata (Zetterstedt); 39–41 — G. hirta (Hendel); 33, 36, 39 — дорсолатерально; 34, 37, 40 — сбоку; 35, 38, 41 — сверху.

Figs 20–23. Male sternites 4 (lower) and 5 (upper) of Gimnomera: 20 — G. palliseta sp.n.; 21 — G. tarsea (Fallén); 22 — G. tibialis (Malloch); 23 — G. ziegleri (Ozerov). Рис. 20–23. Стерниты 4 (вниЗу) и 5 (вверху) самцов Gimnomera: 20 — G. palliseta sp.n.; 21 — G. tarsea (Fallén); 22 — G. tibialis (Malloch); 23 — G. ziegleri (Ozerov).

Figs 60–68. Epandrium, cercal plate and surstyli of Gimnomera spp.: 60–62 — G. palliseta sp.n.; 63–65 — G. tarsea (Fallén); 66–68 — G. tibialis (Malloch); 60, 63, 66 — dorsolateral view; 61, 64, 67 — lateral view; 62, 65, 68 — dorsal view. Рис. 60–68. Эпандрий, церки и сурстили Gimnomera spp.: 60–62 — G. palliseta sp.n.; 63–65 — G. tarsea (Fallén); 66–68 — G. tibialis (Malloch); 60, 63, 66 — дорсолатерально; 61, 64, 67 — сбоку; 62, 65, 68 — сверху.

Figs 69–71. Epandrium, cercal plate and surstyli of G. ziegleri (Ozerov): 69 — dorsolateral view; 70 — lateral view; 71 — dorsal view. Рис. 69–71. Эпандрий, церки и сурстили G. ziegleri (Ozerov): 69 — дорсолатерально; 70 — сбоку; 71 — сверху.