Corynoneura fujiundecima Sasa, 1985

Makarchenko, Eugenyi A. Makarchenko Marina A. & Semenchenko, Alexander A., 2019, Towards the taxonomy of Corynoneura Winnertz (Diptera: Chironomidae: Orthocladiinae) from the Russian Far East and Eastern Siberia, Zootaxa 4612 (2), pp. 221-236 : 228

Corynoneura fujiundecima Sasa

( Figs. 27–28 )

Corynoneura fujiundecima Sasa, 1985: 130 ; Yamamoto 2004: 17; Fu et al. 2009: 10 , 2017: 132; Ashe & O’Connor 2012: 193. Corynoneura lacustris Edwards 1924 ; Makarchenko & Makarchenko 2006: 154 (misidentification).

Material. Russian Far East, Primorye Territory: 5 adult males, Putyatin Island ( Strelok Bay , near 50 km East of Vladivostok and 35 km West of Nakhodka), Gusinoe Lake, 9–11.VII.1999, leg. E. Makarchenko ; 4 adult males, Khasanskyi District , Lotos Lake near Khasan Village, 3. VI.2007, leg. E. Makarchenko ; 3 adult males, Terneiskyi District , Sikhote-Alin Biosphere Nature Reserve, Golubichnoe Lake 31.VIII.2002, leg. O. Zorina ; 1 adult male, same data except 9.VII.2006, leg. O. Zorina.

The total length ( 1.15–1.65 mm) and wing length ( 0.82–0.88 mm) values for C. fujiundecima from the Russian Far East are lower than that of specimens from Japan (total length 1.86–2.13 mm, wing length 1.14–1.24) ( Sasa 1985).

Remarks and comments. The adult male of C. fujiundecima is very closely related to C. lacustris Edwards , and we mistakenly identified this species from the Russian Far East as C. lacustris ( Makarchenko & Makarchenko 2006: 154) . The main differences between these species are as follows: C. fujiundecima : apical seta of hind leg tibia slightly curved ( Fig. 27 ), AR 0.47–0.66, sternapodeme width-length ratio 1.2–2, except for one male from Lotos Lake, whose height of sternapodeme is almost equal to its length, gonostylus short and broadened in middle part ( Makarchenko & Makarchenko 2006, Fig. 8 ); C. lacustris : apical seta of hind leg tibia S-shaped, AR 0.32–0.42, sternapodeme height shorter than the length, gonostylus longer and slender, slightly widening in middle ( Schlee 1968).

Distribution. East Palaearctic species. Known from the Primorye Territory of the Russian Far East and Japan.

Figures

FIGURES 24–29. Adult males of Corynoneura sikhotealinensis sp. nov. (24–26), C. fujiundecima Sasa (27–28) and Corynoneura sp. (29). 24, 28–29, hypopygium in dorsal view; 25–26, gonocoxite and gonostylus; 27, apex of hind leg tibia. Tr—“trunnion”. Scale bars 20 µm.

FIGURES 7–11. Adult males of Corynoneura carriana kadalinka from Baikal Lake basin (7) and C. carriana s. str. From Sweden (8–9) and Ural Region (10–11). 7–8, 11, hypopygium in dorsal view; 9–10—antenna.