Filatima asiatica Sattler, 1961

(Figs 2, 12, 22)

Filatima asiatica Sattler, 1961: 119 . TL: Kyrgyzstan. TD: MfN.

Filatima bidentella Bidzilya, 1998: 52 . Synonymized by Bidzilya & Nupponen (2018: 392).

Material examined. CHINA, Hebei: 2♁, Saihanba National Forest Park (42.40°N, 117.25°E), 1504 m, 16.VII.2019, leg. SN Zhao & SR Li, slide No. OHJ20887 . Qinghai: 1♁, Xianmi Village, Menyuan County (37.16°N, 102.02°E), 2731 m, 16.VII.2019, leg. SL Hao & XJ Zhu, slide No. OHJ20899 . Ningxia: 1♁, Qingyangjing Natural Village, Huamachi Town, Yanchi County (37.96°N, 107.18°E), 1469 m, 18.Ⅴ.2017, leg. K Lou, slide No. OHJ20923 .

Diagnosis. Adult (Fig. 2): Wingspan 15.0–17.0 mm. Filatima asiatica is superficially similar to F. pagicola (Meyrick, 1936) . It can be distinguished by the forewing without a cream white spot at the costal margin, and in the male genitalia by the absence of the anellus lobes and the phallus with three cornuti (Fig. 22); in F. pagicola, the forewing has an indistinct cream white spot near basal 3/4 of the costal margin (Fig. 6), the anellus lobes are well developed, and the phallus has two cornuti (Fig. 26). This species is similar to F. karsholti Ivinskis & Piskunov, 1989 in male genitalia, and it can be distinguished by the saccus distinctly narrowed to narrowly rounded apex, and the phallus with weakly sclerotized, folded bands in distal 2/3; in F. karsholti, the saccus is subparallel to before obtuse apex, and the phallus has a triangular sclerite in the distal 2/3 (Fig. 23).

Variation. The number of the teeth in the middle of the cornutus varies: two teeth are found in specimens collected from Ningxia and Qinghai (Fig. 22-c), while one tooth is present in specimens collected from Hebei (Fig. 22-b). There are some variations in the shape of the saccus: the distinctly narrowed saccus is longer than the sacculus in the specimens from China, whereas the slightly narrowed saccus is shorter than the sacculus in the specimens from Russia (Bidzilya & Nupponen 2018: fig. 37).

Distribution. China (Hebei, Ningxia, Qinghai), Kyrgyzstan, Mongolia, Russia.

Note. This species is newly recorded in China.