Sympycnus changaicus Negrobov, 1973

Negrobov, Oleg P., Grichanov, Igor Ya. & Selivanova, Olga V., 2017, Review of East Palaearctic species of Sympycnus Loew, 1857, with a key to species, Zootaxa 4277 (4), pp. 531-548 : 532-534

Sympycnus changaicus Negrobov

( Figs 1–6 )

Sympycnus changaicus Negrobov, 1973: 148 .

Sympycnus convergens Negrobov, 1973: 149 , syn. nov. Type locality: Mongolia: “Central aimak, Mungen Morjet”. Sympycnus urgaicus Negrobov, 1973: 152 , syn. nov. Type locality: Russia: “Sajangebirge, Arschan”.

Type material examined. Sympycnus changaicus : HOLOTYPE ♂, labelled: Mongolia: “ Archangaj aimak, Gebirgspas Egijn davaa, etwa 3000 m, 27.VIII.1967, Zajzev ” / Sympycnus changaicus Negrobov ( ZIN).

Sympycnus convergens : HOLOTYPE ♂, labelled: Mongolia: “ Central aimak, Mungen Morjet, 6–7.VII.1967, Zajzev ” / Sympycnus convergens Negrobov ( ZIN).

Sympycnus urgaicus : HOLOTYPE ♂, labelled: Russia: “ Sajangebirge , Arschan, 2.VII.1965, Negrobov ” / Sympycnus urgaicus Negrobov ( ZIN).

Other material examined. Mongolia. 1♂, Ubsunurskii Aimak , 5 km N Khyargasa, 10.VIII.1970, Zaitsev ( ZIN) ; 1♂, Khankh vil., 21.VII.1983, I. Ovchinnikov ( ZMMU) ; 2♂, Tsentralnyi Aimak , 20 km S Ulaanbaatar, 2.VII.1967, Zaitsev ( ZIN) ; 1♂, Tsentralnyi Aimak , 125 km SW Ulaanbaatar, 30–31.VII.1969 (Kerzhner) ; 2♂, Gobi-Altaiskii Aimak , 20 km SW Bugata, 20.VII.1970, Narchuk ( ZIN) ; 1♂, Urga [= Ulaanbaatar] env., 1–2.VII.1905, Kozlov ( ZIN) . Russia. 1♂, [Transbaikalia,] Chita , 24.VI.1921, Sazhin ( ZIN) ; 8♂, Transbaikalia, Turgu , 30.VI.1999, Makerov ( ZIN) ; 4♂, Yakutia, Batagai , swampy lake bank, 9.VIII.1972, Gorodkov ( ZIN) ; 1♂, Yakutia, Verkhoyansk , bog, 25.VII.1974, Gorodkov ( ZIN) ; 1♂, 1♀ (in copula), 1♂, Yakutsk , 18.VII.1969, Sychevskaya ( ZIN) ; 1♂, [Buryatia,] Sudzhii,12 verst of Troitskosavsk [= Kyakhta ], 13.VII.1912, Maskova ( ZIN) ; 2♂, [Buryatia,] Khargun, 6 km E Kyren, Sayany , sedge bog, 700 m, 11.VII.1965, Gorodkov ( ZIN) ; 2♂, Altai Republic, Kosh-Agach env., 50.01°N, 88.66°E, 1750 m, 2–4.VII.2016, N. Vikhrev ( ZMMU) .

Remarks. Our examination of additional material has revealed intra-specific variation in leg coloration, and mid tibia and hind tarsus ( Fig. 3 ) setation in this species. A re-examination of macerated hypopygia of the holotypes of Sympycnus changaicus , S. convergens and S. urgaicus has revealed that the hypopygial appendages are identical in all the specimens studied ( Figs 5–6 ). The fore tarsus illustrated in Negrobov (1973, fig. 32) is actually Rhaphium sp. rather than S. convergens , being erroneously included in the paper. We consider all three of these species to be synonyms.

Distribution. Palaearctic: Mongolia. New for Transbaikalia Region, Altai, Buryatia and Yakutia Republics of Russia.

Figures

FIGURES 1 – 6. Sympycnus changaicus Negrobov, male (Mongolia). 1, head, dorsolateral view; 2, fore tarsus, lateral view; 3, hind tarsus, lateral view, with inset showing erect setae on tarsomeres 3 and 4; 4, wing; 5, hypopygium, left lateral view (holotype); 6, hypopygium, ventral view (holotype).