Gimnomera nudipedis 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 : 207-208

Gimnomera nudipedis Ozerov , sp.n.

Figs 19 , 57–59 .

MATERIAL. Holotype ♂, RUSSIA: Krasnoyarsk Krai: Taimyr, Agapa (ca. 71.412ºN 89.2689ºE), the River Pyasina , 14.VII.1967, Gorodkov ( ZISP) . Paratypes: Yakutia: Tiksi (71.6351ºN 128.8579ºE), 9.VII.1957, Gorodkov (1 ♂, ZISP) ; Stolb Is. (72.3956ºN 126.6588ºE), the Lena River delta, 25.VII.1957, Gorodkov (1 ♂, ZMUM) .

DESCRIPTION. Male. Small-sized flies (3.2–3.6 mm long).

Black in ground colour; frontal vitta yellow in low- er half or third. Scutum fine greyish dusted completely or partly shining. Anepimeron with shining spot anteriorly. Abdomen fine greyish dusted. Legs black in ground colour, tibiae from black to yellowish.

Head with 3 orbital, 3–4 frontal, 1 ocellar, 1 small postocellar, 1 inner vertical, 1 outer vertical setae; 2 pairs of vibrissae present. Antenna black. Postpedicel about 1.5 times as long as wide. Arista black. Palpus brownish.

Thorax. Scutum densely covered with small yellow hairs, including acrostichal area; dorsocentrals 2+3, intra-alars absent, supra-alars 1+2, 1 postpronotal, anterior margin of postpronotum with short erect black spinules, notopleurals 2, postalars 2. Proepisternum with 1 seta near lower margin. Proepimeron with 1 seta and with several small hairs. Anepisternum with 1–2 black setae along posterior margin. Anepimeron with several hairs. Scutellum subshining, with a pair of lateral scutellar and a pair of apical scutellar setae.

Legs. Fore femur with 2–3 small posterodorsal setae. Fore tibia with 1 preapical dorsal, 1 apical anteroventral and 1 apical posterovental setae. Mid femur with 1 small preapical posterodorsal and 1 small preapical posterior setae. Mid tibia with 1 preapical dorsal seta and a ring of apical setae. Hind femur without distinct setae. Hind tibia with 1 preapical dorsal and 1 apical anteroventral setae.

Wing clear or slightly brownish; veins brownish. Vein R 1 bare. Calypters, margins of calypters, and halteres yellowish.

Abdomen. Male 4 rectangular, about 1.5 times as long as wide; sternite 5 about as long as wide, with short hummock shaped median lobes, covered with spinules ( Fig. 19 ). Epandrium, cercal plate and surstyli as in Figs 57–59 .

DISTRIBUTION. Russia: Krasnoyarsk Krai, Yakutia.

Figures

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.