Filatima karsholti Ivinskis & Piskunov, 1989

Oh, Hyonju, Zhang, Xiuying & Li, Houhun, 2023, Taxonomy of the genus Filatima Busck, 1939 (Lepidoptera: Gelechiidae) in China, Zootaxa 5343 (5), pp. 471-488 : 474

Filatima karsholti Ivinskis & Piskunov, 1989

( Figs 3 , 13 , 23 )

Filatima karsholti Ivinskis & Piskunov, 1989: 572 . TL: Mongolia. TD: ZMUC.

Material examined. CHINA, Gansu: 1♁, Yongdeng County, 8.Ⅴ.1985, leg. HH Li. Ningxia: 1♁ 1♀, Dashuikeng Village , Yanchi County (37.43°N, 106.97°E), 1530 m, 19.VI.2017, leg. K Lou , slide No. OHJ20879; 1♁, Tongjiquan Village , Yanchi County (37.76°N, 107.37°E), 1332 m, 21.VI.2017, leg. K Lou ; 2♁, Liuyangbao Village , Yanchi County, 1320 m, 11.VI.2014, leg. HH Li et al; 2♁, Haba Lake , Yanchi County, 1461 m, 25.VIII.2014, leg. MQ Yang & PX Cong ; 2♁, Haba Lake , Yanchi County (37.70°N, 107.04°E), 1452 m, 7.VII.2016, leg. K Lou ; 1♁, Xiangshan Township, Zhongwei City , 1996, leg. GD Ren. Inner Mongolia: 2♁, Dongwuzhumuqin banner, 920 m, 7.VIII.1997, leg. HH Li. Qinghai: 1♁, Xining City , 28.VII.1994; 4♁, Huangyuan County, 14-16.VIII.1995, leg. LF Zhu ; 1♁, Dahua Village , Huangyuan County, 22.VIII.1995, leg. LF Zhu.

Diagnosis. Adult ( Fig. 3 ): Wingspan 15.0–20.0 mm. Filatima karsholti is characterized by the forewing with brown scales along veins, with black spot at middle of fold as well as at middle and end of cell respectively, the termen with black dots, and the lustrous grayish brown hindwings; in the male genitalia by the subtrapezoid uncus, the deeply emarginated posterior margin of the vinculum, the subparallelly sided saccus longer than the sacculus, and the phallus with three cornuti and a triangular sclerite that extends from basal 1/3 to distal 1/4 ( Fig. 23 ). This species is similar to F. sciocrypta ( Meyrick, 1936) in both external appearance and male genitalia. However, it can be distinguished from the latter by the deeply emarginated posterior margin of the vinculum and the presence of a triangular sclerite in the phallus. In contrast, F. sciocrypta has a slightly emarginated posterior margin of the vinculum and lacks a triangular sclerite in the phallus ( Bidzilya & Nupponen 2018: figs 50, 52, 53). The constrasting features of the male genitalia between this species and F. asiatica Sattler, 1961 are given in the diagnosis specifically for the latter species.

Distribution. China (Gansu, Inner Mongolia, Ningxia, Qinghai, Xinjiang), Mongolia, Russia.

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.