Gimnomera hirta ( Hendel, 1930 )

Ozerov, A. L., 2019, A review of the genus Gimnomera Rondani, 1866 (Diptera: Scathophagidae) of Russia, Russian Entomological Journal 28 (2), pp. 195-218 : 202

Gimnomera hirta ( Hendel, 1930)

Figs 2, 4–7 , 13 , 39–41 .

hirta Hendel, 1930: 79 ( Gymnomera ). Type-locality: “ Schweden ”.

The species was recorded for Russia from Taimyr [ Ozerov & Barkalov, 2014] and Amur Oblast [ Ozerov & Krivosheina, 2014].

MATERIAL. Amur Oblast: town Zeya (53.7485ºN 127.2614ºE), 19. VI . and 9.VII.1978, 24 and 29.VI.1981, 16 and 6.VII.1982, A. Shatalkin, A. Ozerov (6 ♂♂, 5 ♀♀, ZMUM); Klimoutsy (51.4701ºN 127.5991ºE), 18. VI .1959, Borisova (1 ♀, ZISP); Arkhangelsk Oblast: Nar’yan-Mar env. (67.6428ºN 53.1963ºE), 6.VII.2008, A.L. Ozerov (23 ♀♀, ZMUM); Zabaykalsky Krai: Chita (52.0181ºN 113.5082ºE), the River Kaydalovka , 4.VII.1912, Valueva (1 ♀, ZISP) .

DESCRIPTION. Male, female. Medium-sized flies (4.2–5.8 mm long).

Yellow species, only ocellar triangle and female abdominal tergite 8 black. Scutum shining, the rest parts of thorax whitish microtrichose. Abdomen subshining.

Head with 2–3 orbital, 2–3 frontal, 1 ocellar, 1 small postocellar, 1 inner vertical, 1 outer vertical setae; 2 pairs of vibrissae present. Postpedicel approximately 2.0 times as long as wide. Arista brown. Palpus yellow.

Thorax. Acrostichals as hairs in two rows, dorsocentrals (1–2)+(1–2), intra-alars absent, supra-alars (0– 1)+2 (presutural small), postpronotal absent, anterior margin of postpronotum with short erect black spinules, notopleurals 2, postalars 2. Proepisternum with 1 seta near lower margin. Proepimeron with 0–1 seta and several hairs. Anepisternum with 1–2 setae near posterior margin. Anepimeron with several hairs. Scutellum with a pair of lateral scutellar and a pair of apical scutellar setae.

Legs. Fore femur with a row of posterodorsal setae. Fore tibia with 1 anterodorsal, 1 posterodorsal and 1 posterior setae at middle, also with 1 preapical dorsal, 1 apical anterodorsal and 1 apical posterior setae. Mid femur with a row of anterior setae, 1 preapical posterodorsal and 1 preapical posterior setae. Mid tibia with 1 anterodorsal, 1 posterodorsal, 1 preapical dorsal setae and a ring of apical setae. Hind femur with 2–5 anterodorsal setae. Hind tibia with 2 anterodorsal, 1 posterodorsal, 1 preapical dorsal setae, also with 1 apical anteroventral and 1 apical anterodorsal setae.

Wing ( Fig. 5 ) slightly yellowish; veins brownish. Vein R 1 setulose on apical half of dorsal surface ( Fig. 4 ). Calypters, margins of calypters, and halteres yellowish.

Abdomen. Male sternite 4 trapezoid, wider than long; sternite 5 transverse, with hummock shaped short median lobes, covered with spinules ( Fig. 13 ). Epandrium, cercal plate and surstyli as in Figs 39–41 . Ovipositor as in Figs 6, 7 .

DISTRIBUTION. Russia: Amur Oblast, Arkhangelsk Oblast, Krasnoyarsk Krai, Zabaikalsky Krai. — Scandinavia [ Šifner, 2008] .

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 6–7. Gimnomera hirta (Hendel): 6 — end of female abdomen, dorsal view; 7 — same, lateral view. Рис 6–7. Gimnomera hirta (Hendel): 6 — конец брюШка самки, сверху; 7 — то же, сбоку.

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 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.