Nymphomyia orientalis orientalis Makarchenko et Semenchenko, subsp. nov.

(Figs. 3–11, 13)

Type material. Holotype: adult male, RUSSIA: Khabarovsk Territory, Khabarovsk District, Polovinka River (Amur River basin), environs of the of Novotroitskoye Village, 48.30732 N 134.83607 E, 6.VI.2010, leg. N. Yavorskaya. Paratypes: 4 adult males, 3 females, the same data as holotype, 6.VI.2010, leg. N. Yavorskaya; adult males and females in quantities, the same data except 3.VI.2011, 3.VI.2012, 4.VI.2023, leg. N. Yavorskaya.

Material examined. Russia: Khabarovsk Territory, 2 adult males, Bolshekhehtsirsky Nature Reserve, Odyr River, 48.110133 N 134.8731 E, 9. VI.2016, leg. N. Yavorskaya; 2 mature pupae, 1 pupal exuvia, 1 larva, the same data except environs of Kiya Village, Fartovyi Spring, tributary of Kiya River (Ussuri River basin), 47.829705 N, 135.715348 E, 10. VI.1982, leg. E. Makarchenko and M. Makarchenko; 10 adult males, 12 females, the same data except Levaya River, environs of Korsakovka-2 Village, 48.334917 N, 134.950167 E, 15. VI.2012, leg. N. Yavorskaya; 1 adult male, the same data except Matryonikha River, 48.339767 N, 135.000800 E, 15. VI.2012, leg. N. Yavorskaya; 1 adult male, 1 female, the same data except Komsomolsky District, Tsurkul River, tributary of Silinka River, 50.663919 N, 136.893314 E, 7. VII.2010, N. Yavorskaya; 1 adult male, the same data except B. Khurba River, 50.390028 N, 136.856625 E, 9. VII.2010, leg. N. Yavorskaya; 1 adult male, the same data except Pokha River, 50.354961 N, 136.859925E, 12. VII.2010, leg. N. Yavorskaya; 1 adult male, 1 female (in copula), 3 larvae, the same data except Vyazemsky District, Avan River, 47.442095 N, 134.616778 E, 26. V.2011, leg. S. Sirotsky; 2 mature pupae, the same data except Verkhnebureinsky District, Satansky Stream (Bureya River basin), environs of Chegdomyn Village, 51.185414 N, 133.002731 E, 8. VII.1994, leg. E. Makarchenko. Primorye Territory, 2 larvae, Ussuryisky District, M. Kamenka River, (Razdolnaya River basin), 43.661082 N, 132.363692 E, 2. V.1982, leg. T. Vshivkova; 3 mature pupae, 24 larvae, the same data except Pravaya Komarovka River, Ussuri Nature Reserve named after V.L. Komarova, 43.649150 N, 132.407251 E, 31. V.1984, leg. T. Vshivkova; 1 adult male, 1 female (in copula), 3 larvae, the same data except environs Artem City, Zybunnyi Stream of Bolotnaya River basin, 43.339444 N, 132.148333 E, 2. VI.2013, leg. A. Skriptsova.

Derivatio nominis. The names of the species and nominative subspecies comes from the Latin word orientalis, which means eastern.