Filatima asiatica Sattler, 1961

Oh, Hyonju, Zhang, Xiuying & Li, Houhun, 2023, Taxonomy of the genus Filatima Busck, 1939 (Lepidoptera: Gelechiidae) in China, Zootaxa 5343 (5), pp. 471-488 : 473

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.

Figures

FIGURES 1-10. Adults of Filatima spp. 1, F. angustipennis Sattler, 1961, ♁; 2, F. asiatica Sattler, 1961, ♁; 3, F. karsholti Ivinskis & Piskunov, 1989, ♁; 4, F. magnanella sp. nov., holotype, ♁; 5, F. multicornuta Bidzilya & Nupponen, 2018, ♁; 6, F. pagicola (Meyrick, 1936), ♁; 7, F. pallipalpella (Snellen, 1884), 7a, under surface of male hindwing (arrow indicates a row of scales at basal 2/3 along R), ♁; 8, F. nanjiangica sp. nov., holotype, ♁; 9, F. taxkorgana sp. nov., holotype, ♁; 10, F. yanchiensis 5 sp. nov., paratype, ♁. Scales = 2.0 mm.

FIGURES 11-20. Male segment 8 of Filatima spp. 11, F. angustipennis Sattler, 1961, slide No. OHJ20876; 12, F. asiatica Sattler, 1961, slide No. OHJ20887; 13, F. karsholti Ivinskis & Piskunov, 1989, slide No. OHJ20879; 14, F. magnanella sp. nov., holotype, slide No. OHJ20889; 15, F. multicornuta Bidzilya & Nupponen, 2018, slide No. OHJ20927; 16, F. pagicola (Meyrick, 1936), slide No. OHJ20918; 17, F. pallipalpella (Snellen, 1884), slide No. OHJ20881; 18, F. nanjiangica sp. nov., holotype, slide No. OHJ20900; 19, F. taxkorgana sp. nov., holotype, slide No. OHJ20980; 20, F. yanchiensis sp. nov., holotype, slide No. OHJ20894. Scales = 0.2 mm.

FIGURES 21-25. Male genitalia of Filatima spp. 21, F. angustipennis Sattler, 1961, slide No. OHJ20876; 22, F. asiatica Sattler, 1961, slide No. OHJ20887 (a, b), OHJ20899 (c); 23, F. karsholti Ivinskis & Piskunov, 1989, slide No. OHJ20879; 24, F. magnanella sp. nov., holotype, slide No. OHJ20889; 25, F. multicornuta Bidzilya & Nupponen, 2018, slide No. OHJ20927. Scales = 0.2 mm.

FIGURES 26-30. Male genitalia of Filatima spp. 26, F. pagicola (Meyrick, 1936), slide No. OHJ20877; 27, F. pallipalpella (Snellen, 1884), slide No. OHJ20881; 28, F. nanjiangica sp. nov., holotype, slide No. OHJ20900; 29, F. taxkorgana sp. nov., holotype, slide No. OHJ20874; 30, F. yanchiensis sp. nov., holotype, slide No. OHJ20894 (a, b), OHJ20897 (c). Scales = 0.2 mm.