Pterolophia (Pterolophia) angusta multinotata Pic, 1931

Literature data. Dornogovi: 3 km SE of Zuunbayan [ЗҮҮнбаЯн] [44.405, 110.111], 21.07.1963, from Ulmus pumila, leg. B. Burakowski et H. Szelegiewicz, 1 ♀ (holotype of Pterolophia burakowskii) (coll. MIZ PAN) (Heyrovský 1973b: as P. burakowskii); 30 km SSE of Tenger-Nuur Lake [Тэнгэр-Нур] [ca. 42.419, 108.682], on broom-grass Thysanolaena maxima, 04.08.1971, 1 ♀ (Namhaidorzh 1974: as Pterolophia rigida, Namkhaidorzh 1976a: as P. burakowskii).

Sükhbaatar: sands of Ongon-Els [пески Онгон-Элс], 15 km SSE of Khongor [Хонгор] = Ongon [45.088, 113.887], on almond Amygdalus, 4– 5.07.1971, 2 ♂♂ and 5 ♀♀ (ibid) .

Remarks. Pterolophia angusta (Bates, 1873) was divided into two subspecies: the nominative one, which is endemic to Japan, and P. angusta multinotata distributed in eastern Russia, Mongolia, the Korean Peninsula, and China (Shaanxi) (Danilevsky 2020).

It seems that all known Pterolophia specimens collected in Mongolia belong to one taxon— Pterolophia burakowskii Heyrovský, 1973, which is currently a synonym of P. angusta multinotata . Pterolophia burakowskii was described based on a single female collected in 1963. About this time, in 1971, another female of this genus was collected in the same aimag and identified as Pterolophia rigida (Bates, 1873) (Namhaidorzh 1974) . However, a few years later Namkhaidorzh (1976a) published the same specimen again, as P. burakowskii . Finally, P. burakowskii has been synonymised with P. multinotata by Danilevsky & Smetana (2010). In turn, Cherepanov (1990c) synonymised another two taxa that are currently junior synonyms of the discussed subspecies: Pterolophia ussuriensis Plavilstshikov, 1954 = Pterolophia selengensis Lyamtzeva, 1979 . It is, however, not clear who formally proposed P. ussuriensis as a synonym of P. multinotata .

According to Namkhaidorzh (2007; for P. ussuriensis), larvae of this taxon feed in twigs and branches of Betula L. ( Betulaceae), Crataegus L. ( Rosaceae), and Ulmus . Adults are active in June and July; they do not visit flowering plants and generally lead a cryptic mode of life.