Gimnomera ziegleri (Ozerov, 1999)

Ozerov, A. L., 2019, A review of the genus Gimnomera Rondani, 1866 (Diptera: Scathophagidae) of Russia, Russian Entomological Journal 28 (2), pp. 195-218 : 213-216

Gimnomera ziegleri (Ozerov, 1999)

Figs 23 , 69–71 .

ziegleri Ozerov, 1999b: 510 ( Langechristia ). Type-locality: Boitsovo 47.02ºN 134.21ºE ( Russia, Khabarovsk Krai).

This species was known from the type-locality only [ Ozerov, 1999b].

MATERIAL. Khabarovsk Krai: Malyshevo (48.7324ºN 135.6131ºE), 13. V .1973 , Gorodkov (2 ♂♂, ZISP); Bychikha (48.2978ºN 134.8316ºE), 16. V .1973 , Gorodkov (2 ♀♀, ZISP).

DESCRIPTION. Male, female. Medium-sized flies (3.7–4.8 mm long).

Head. Frontal vitta reddish-yellow, matt; fronto-orbital plate black in upper half and yellow in lower part, whitish dusted. Ocellar triangle black. Gena and parafacial yellow, whitish dusted. Face blackish, whitish dusted. Postcranium black, greyish dusted. 2–3 orbitals, 3–4 frontals, 1 ocellar, 1 small postocellar, 1 inner vertical, 1 outer vertical; 2 pairs of vibrissae present. Antenna yellow, only postpedicel darkened apically. Postpedicel approximately 1.5 times as long as wide. Arista brownish. Palpus yellow.

Thorax black, greyish dusted, but postpronotum shining, also scutum with fore shining stripes (two linear along dorsocental setae and two wide between dorsocentral and supra-alar setae), sometimes additionally with short shining stripe along acrostichal lines in presutural area. Acrostichals as hairs in two rows, dorsocentrals 2+3, intra-alars 0+1, supra-alars 1+2, 1 postpronotal, anterior margin of postpronotum without short erect black spinules ( Fig. 3 ), notopleurals 2, postalars 2. Proepisternum with 1 seta near lower margin. Proepimeron with 1 seta and several hairs. Anepisternum with 1 long black seta near posterior margin. Anepimeron bare. Scutellum black, shining, with a pair of lateral scutellar and a pair of apical scutellar setae.

Legs yellow completely. Fore femur with 1–3 posterodorsal setae. Fore tibia with 1 dorsal/anterodorsal seta, and 1 posterior setae at middle, 1 preapical dorsal, 1 apical posterior and 1 apical ventral setae. Mid and hind femora without striking setae. Mid tibia with 1 anterodorsal, 1 posterodorsal, 1 preapical dorsal setae and a ring of apical setae. Hind tibia with 1–2 anterodorsal, 2–3 posterodorsal, 1 preapical dorsal setae, also with 1 apical anterodorsal and 1 apical anteroventral setae.

Wing slightly brownish; veins brownish. Vein R 1 setulose on apical half of dorsal surface. Calypters, margins of calypters, and halteres pale yellow.

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Abdomen black in ground colour. Male syntergite 1+2 with two yellow lateral spots (visible dorsally); tergites 3–6 each black, but yellow near lateral margin (not visible dorsally); tergite 7 and epandrium yellow. Female syntergite 1+2 and tergites 3–4 each with large yellow lateral spots; tergites 5–6 each yellow, with narrow medial stripe; tergite 7 yellow completely. Male sternite 4 small, circular; sternite 5 transverse, with moderate hummock shaped median lobes, carrying spinules ( Fig. 23 ). Epandrium, cercal plate and surstyli as in Figs 69–71 .

DISTRIBUTION. Russia: Khabarovsk Krai.

Figures

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 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.

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.