Coenosia ukokensis Sorokina, 2009

Sorokina, Vera S., 2023, A key to the Russian species of the genus Coenosia Meigen (Diptera, Muscidae), with the description of one new species and new synonymies, Zootaxa 5389 (1), pp. 79-107 : 88-91

Coenosia ukokensis Sorokina, 2009

Figs 5 E, F , 7 H, I , 8 E, F

Additional material examined: Russia, 1♂ 1♀, Magadan region, 2 km NW Evensk , 61°55’N 159°16’E, tundra, sweeping grass, 02.vii.2020, leg. N. Tridrikh ( SZMN) ; 1♀, the same data but 03.vii.2020 ; 2 ♂♂ 2 ♀♀, the same data but 08.vii.2020 ; 1 ♀, the same data but 22.vii.2020 ; 1 ♀, the same data but in pan trap, 23.vii.2020 ; 1 ♀, Magadan region, 5 km N Evensk , 61°57’N 159°15’E, poplar forest, sweeping grass, 01.vii.2020, leg. N. Tridrikh ( SZMN) ; 1 ♀, the same data but 04.vii.2020 ; 1 ♀, Magadan region, environs of Garmanda village , 62°10’N 159°04’E, tundra, 13.vii.2020, leg. N. Tridrikh ( SZMN) ; 1 ♂, Magadan region, 3 km N Garmanda village, Nizhnyaya Hulakagchan river , 62°72'N 159°06'E, sweeping stones, 15.vii.2020, leg. N. Tridrikh ( SZMN) ; 1 ♀, Magadan region, environs of Sokol , 59°54’N 150°47’E, 01.viii.2020, leg. N. Tridrikh ( SZMN) .

Comments. A new record for the Far East of Russia.

Coenosia ukokensis was described from Altai Mts and is similar morphologically to the northern Coenosia oralis Schnabl, 1915 . The Altai specimens of Coenosia ukokensis have all tibiae brownish-yellow, darkened in apical 2/3–4/5 ( Figs 7 H, I ), unlike yellow tibiae of Coenosia oralis . Males of Coenosia ukokensis collected in the Magadan region have all tibiae yellow ( Figs 8 E, F ) which makes it difficult to distinguish these two species. To correctly identify them, it is necessary to study the male terminalia.

Distribution. Palaearctic: Russia (Siberia, NFE).

Figures

FIGURE 5. Coenosia spp. A–C. Coenosia nevaedensis. A. Terminalia, lateral view. B. Cercal plate, dorsal view. C. Sternite 5. D. Coenosia nigrotincta, terminalia, lateral view. E, F. Coenosia ukokensis. E. Terminalia, lateral view. F. Cercal plate, dorsal view. G. Coenosia apukaensis, terminalia, lateral view. H. Coenosia xuei, terminalia, lateral view.

FIGURE 7. Coenosia spp. A, B. Coenosia ciliata. A. Male habitus, lateral view. B. Female habitus, lateral view. C. Coenosia penicillata, male habitus, lateral view. D, E. Coenosia subgracilis. D. Male habitus, lateral view (the holotype of Coenosia altaica Sorokina, 2009). E. Female habitus, lateral view (the paratype of C. altaica Sorokina, 2009). F, G. Coenosia oralis. F. Male habitus, lateral view. G. Female habitus, lateral view; H, I. Coenosia ukokensis. H. Male, holotype, lateral view. I. Female, paratype, lateral view. Bare: 1 mm.

FIGURE 8. Coenosia spp. A, B. Coenosia ozerovi. A. Male habitus, lateral view. B. Female habitus, lateral view. C, D. Coenosia nigrotincta. C. Female habitus, lateral view (Pevek). D. Male habitus, lateral view (Beringovskii). E, F. Coenosia ukokensis. E. Male habitus, lateral view (Magadan). F. Female habitus, lateral view (Magadan). Bare: 1 mm.