Aproceros pallidicornis (Mocsáry, 1909), Sundukov, 2017

Aproceros pallidicornis (Mocsáry, 1909)

Figs 2A–H View Fig , 3B–C, E–F View Fig , 4A–C View Fig

Aprosthema pallidicornis Mocsáry, 1909: 9 .

Aproceros umbricola Malaise, 1931: 153 .

MATERIAL EXAMINED. Russia, Amur Prov.: Samodon , 100 km W of Svobodnyi, 7.VIII.1959, A. Zinoviev leg., 1♂, 1♀ ( ZISP) ; Khabarovsk Terr.: lower reaches of the Anyuy River, tributary of the lower Amur River , 30. VI.1910, V. Soldatov leg., 1♀ ( ZISP) ; 20 km SE of Vyazemskiy, Sobolevo , 29. VII.1978, D. Kasparyan leg., 3♂ ( ZISP) ; Khabarovsk, Arboretum : 25. VI & 20.VIII,1968, A. Shtundyuk leg., 2♂ ( ISEA) , 31. VII.1978, D. Kasparyan leg., 2♂ ( ZISP) ; Shevki , 15 km S of Bikin, 2. VI.1983, A. Zinoviev leg., 1♂ ( ZISP) ; Khehtsir, Osinovaya River , 7. VI.1983, D. Kasparyan leg., 1♂ ( ZISP) ; vicinity of Vanino , 10.VIII.1976, Yu. Bodrova leg., 1♂ ( FSCV) ; near Khabarovsk, Bolshekhekhtsirskiy Nature Reserve, vicinity of Bychikha cordon, 48.1713 N, 134.4950 E, 28. V.2021, V. Dubatolov leg., 1♀ (S036) ( ISEA) GoogleMaps ; Primorskiy Terr .: vicinity of Spassk-Dal’niy: 19.VIII.1987, 19.VII.1991, 5–12. VII & 13.VIII.1995, 21 & 31. VII, 4.VIII.1998, 8.VIII.1996 (S049, S051), 5–7.VIII.2019, 3.VII.2001 (S048, S056), 26–28. VI.2003, S. Belokobylskij leg., 19♂, 6♀ ( ZISP) , 10. VI & 8. VII.1961, A. Zhelokhovtsev leg., 1♂, 1♀ ( ZMMU) ; 20 km S of Ussuriysk, Gornotayozhnaya station : 30. VII –8.VIII.1948, V. Gussakovskij leg., 2♂ ( ZMMU) , 20. VII.1981, D. Kasparyan leg., 1♂ ( ZISP) ; vicinity of Ussuriysk , 1.VIII.1966, A. Kupyanskaya leg., 1♀ ( ZMMU) ; Sikhote-Alin , 1.VIII.1936, V. Perelashina leg., 9♂ ( ZMMU) . Suvorovo village , 2–9. VII.1972, A. Ponomarenko leg., 26♂, 2♀ ( ZMMU) ( S059 View Materials ) ; 17. VII.1972, A. Ponomarenko, A. Rasnitsyn leg., 1♀ ( ZMMU) ; Arsenyev, Sky-Base “Bodrost”, 26. V.2016, K. Kramp, M. Prous, A. Taeger legs, 1♂ ( ZISP) ; Zanadvorovka , 7. VI.1972, A. Ponomarenko, A. Rasnitsyn leg., 1♀ ( ZMMU) ; 40 km NE of Spassk-Dal’niy, vicinity of Duchovskoe village , 1.VIII.1996, S. Belokobylskij leg., 1♀ ( ZISP) ( SEM0013 ) ; 20 km S of Spassk-Dal’niy, nr. Evseevka , 17. VII.1995, S. Belokobylskij leg., 1♂ ( ZISP) ; Grodekovo , 5–15. VII.1965, D. Kasparyan leg., 1♂ ( ISEA) ; Partizansk , 7. VII.1970, A. Shtundyuk leg., 1♂ ( ISEA) ; vicinity of Vityaz settlement, 7–17.VIII.1982, I. Kerzhner leg., 2♂, 1♀ ( ZISP) ; “Kedrovaya Pad’ ” Nature Reserve : 30.VIII.1995, S. Belokobylskij leg., 4♀ ( ZISP) , 13.VIII.2014, V. Chemyreva leg., 1♀ (S001) ; Ussuriyskiy Nature Reserve : 12.VIII.1986, V. Makarkin leg., 1♀ ( FSCV) , Kamenushka , 14. VII.1981, D. Kasparyan leg., 1♂ ( ZISP) , 2. V.1989, Sidorenko leg., 1♂ ( FSCV) , 25. V.2003, A. Lelei leg., 1♂ ( FSCV) , 31. VII.2008, A. Khalaim leg., 3♂ (S063) ( ZISP) , 23. V.2016, K. Kramp, M. Prous, A. Taeger leg., 1♂ ( ZISP) , Komarovka River valley : 3. VI.1989, Sidorenko leg., 1♀ ( FSCV) , 13–17. VII.1981, D. Kasparyan leg., 2♂, 1♀ ( ZISP) , cordon Staraya baza, 15–16. VII.1981, D. Kasparyan leg., 9♂ ( ZISP) , cordon Peishula , 30. VII.1972, V. Kuslitsky leg., 3♂ ( ZISP) ; V. Chemyreva leg., 1♂ (S004) ; vicinity of Anisimovka : 21. VI.1975, Soboleva leg., 1♂ ( FSCV) , 11. VII.1977, Azarova leg., 1♀ ( FSCV) , 1.VIII.2022, P. Romantsov leg., 1♂ ( ZISP) ; vicinity of Lazo , 26–29. V.2007, V. Shokhrin leg., 2♂ ( ZISP) ; Vladivostok : 19. VII.1979, A. Zinoviev leg., 1♂ ( ZISP) , 8.VIII.1991 & 5.VII.2019 (S005), S. Belokobylskij leg, 2♂ ( ZISP) ; Ryazanovka village , 9. VII.1982, I. Kerzhner leg., 1♀

( ZISP); 125 km SE of Dalnerechinsk, Pozhiga village , 19–22. VII .1983, D. Kasparyan leg., 5♂ ( ZISP); Kishenevka village , 23–30. V .2008, V . Shokhin leg., 1♀ (S006) ( ZISP) ; 24 km W Anuchino , 9. VII .1969, Tanaseichuk leg., 1♂ ( ZISP); Lazovsky Nature Reserve , Korpad’ cordon, 16–19. VII .2005, Yu. Sundukov, V . Shokhin legs, 1♂ ( FSCV) .

REDESCRIPTION. Female. Body length 5.4–5.7 mm. Body black, shining; mouthparts whitish; legs yellowish-white, coxae, most part of femora except apex black, apical segments of tarsi and hind tibiae often darkened. Flagellum orange or brown, often blackish at base and along posterior side. Basal halves of abdominal tergites mostly semi-transparent, sometimes whitish, membranous. Wings hyaline, veins and pterostigma dark brown, whitish at base. Pubescence of body silvery-white. Head mostly smooth, almost without punctures; frons and vertex convex, face very narrow, linear, with sharp keel; interantennal fovea small, rounded, placed above antennal sockets; clypeus flat, truncated along dorsal margin; malar space broad, almost equal to scapus and pedicellum combined. Sheath of saw simple, rounded in lateral view. Lancet as in A. leucopoda .

Variability.

Spring generation. Head behind eyes (dorsal view) weakly constricted or subparallel. Flagellum brownish-red. Body black. Legs yellowish-white, femora except apex black. POL: OOL: OCL = 1.2: 1.5: 1.0.

Summer generation. Head behind eyes (dorsal view) strongly constricted. Flagellum reddish. Body black or dark brown. Legs yellowish-white, fore and middle femora black at base, less often entirely white or with black markings on all femora. POL: OOL: OCL = 1.5: 1.7: 1.0.

Male (after Mocsáry, 1909 and Malaise, 1931; for additional information see Choi et al., 2015). Body length 4.0– 4.5 mm. Body black, shining, smooth; mouth parts whitish; legs black, trochanters, knees, tibiae and tarsi dirty white, apices of hind tibia and surface of hind tarsi blackened; third antennal segment light brown, its base and two basal segments brownish-black; three basal tergites of abdomen translucent, whitish at base; wings uniformly infuscated, veins and pterostigma dark brown. Pubescence silvery-white. Frons in lateral view rounded, elevated; antennal furrows very broad and deep, lower part of face strongly impressed, frons between antennae linear. Clypeus truncated. POL: OOL: OCL = 0.9: 1.4: 1. Malar space broad. Head behind eyes (dorsal view) slightly narrowed.

DISTRIBUTION. Russia ( Amur Prov., Khabarovsk and Primorskiy Terr.), South Korea ( Choi et al., 2015), Japan, Iran (Chelav et al., 2008).

REMARKS. The number of males significantly higher than females in the collection materials. Probably males have mass flights (swarming). The original description of this species and its junior synonym, Aproceros umbricola Malaise , is given by authors for males. Here we give the description of the females on the basis of the examined material, the species identity of which is confirmed by molecular data.