Nemophora amatella ( Staudinger, 1892 )

Liao, Cheng-Qing, Hirowatari, Toshiya, Yagi, Sadahisa, Wang, Min, Wang, Xing & Huang, Guo-Hua, 2023, The fauna of the family Adelidae (Insecta, Lepidoptera, Adeloidea) from China, Zootaxa 5348 (1), pp. 1-152 : 58-59

(60) Nemophora amatella ( Staudinger, 1892)

(Plates VII-4, XVIII-2)

Adela amatella Staudinger, 1892: 392 (TL: Lapponia finl., Kuusamo; ZMHB).

Nemophora amatella: Kozlov 2004b: 117 (checklist of Europe); Mukkala et al. 2005: 14 (W Finland); Dubatolov 2007: 43, fig. 1 ( Russia: Khabarovsk); Anikin et al. 2009: 306 (list of Volgo-Ural region); Humala et al. 2009: 61 (Karelia); Gerstberger 2010: 131 (checklist of Europa); Hirowatari 2013: 108, fig. 3-09-3,4 ( Japan); Jakovlev et al. 2014: 294 (list of Russian Karelia); Umetsu 2014: 6, fig. 17 ( Japan, Akita Prefecture); Fukuda & Kanai 2016: 18 ( Japan, Kirishima Mt.); Akulov et al. 2018: 7 ( Russia: Krasnoyarsk Territory); Sun et al. 2022: 304, figs. 1, 2, 27, 48 (review); Kozlov 2023b: 98, figs. 3–6, 9–12, 15 (review).

Adela degeerella L. var. amurensis Hoffmann, 1893: 136 (TL: Finland, surroundings of Kuusamo).

Adela degeerella var. amurensis Alphéraky, 1897: 346 (TL: Russia, Kamtschatka).

Nemotois amurensis: Meyrick 1912a: 9 ; Meyrick 1912b: 8 (Siberia); Matsumura 1931: 1111, fig. 2330 ( Japan); Matsumura 1932: 123, pl. 4, fig. 11 (list of Japan).

Nemophora amurensis: Kyrki 1981: 125–129 (Northern Europe); Liu 1981: 9, pl.4, fig.17 (color photos) (NE China, Japan); Park 1983 ( Korea); Cai et al. 1994: 181, fig. 261 ( China, Qinghai); Kozlov & Jalava 1994: 69 (list of the Kola Peninsula, Russia); Hua 2005: 2 (list of China, in Incurvariidae ); Liu & Wang 2010: 601 ( China, Jiangxi, Lushan); Park et al. 2011: 93 ( Korea); Song et al. 2012: 266, fig. 1 ( China, Jiangsu); Zhang 2013: 181, no. 356 ( China, Hebei, Wulingshan, color figure); Wang & Lu 2015: 117, ( China, Daxin’anling area, color figure).

Adela kukunorensis Sauber, 1899: 66 (TL: China, Qinghai, Kuku-nor area [Qinghai Lake]; Sauber’s collection); Rebel 1901: 243 (catalog); Kozlov 1997d: 274–289 ( Russia, Far East); Hua 2005: 2 (list of China).

Nemotois kukunorensis: Meyrick 1912a: 9 (Thibet [Tibet]); Meyrick 1912b: 8 (C. Asia).

Adela badioumbratella Sauber, 1899: 67 (TL: Kuku-nor area; Sauber’s collection); Rebel 1901: 243 (catalog); Hua 2005: 2 (list of China)

Nemotois badioumbratella: Meyrick 1912a: 9 (Thibet [Tibet]); Meyrick 1912b: 8 (C. Asia).

Adela coreana Matsumura, 1931: 1109 , fig. 2322 (TL: Korea, Koriku; SEHU); Razowski & Kumata 1985: 7 (Type catalog).

Nemotois coreana: Matsumura 1932: 125 , pl. 4, fig. 16 ( Korea).

Nemotois degeerella f. ogasawarai Matsumura, 1932: 123. Taf. 4, fig. 9 (TL: Japan, Iwate; SEHU); Razowski & Kumata 1985: 19 (Type catalog).

Diagnosis. This species is similar to N. bellela Walker, 1863 (Plate IX-6), but can be distinguished by the following characters: the transverse central fascia of forewing is distinctly broad, slightly covered in the middle; the subapical area of the forewing has 7–8 radial striae that are pointed apically and do not exceed to the outer margin; each abdominal segment has a yellowish ring posteriorly; and the vinculum is relatively short, only about 2.2 × length of the valva.

Specimens examined. [ Sichuan] 2♁, Xindianzi, Yajiageng , Moxi Town , Luding County, Ganzi Tibetan Autonomous Prefecture , 2019.VII.10, B. Chen & M. Deng leg. ( HUNAU) .

Distribution. China (Northern China, Sichuan); widely distributed in Asia, including Russian Siberia, Korea and Japan, and also in Northern Europe.

Remarks. This species has been collected for a long time in Northern Europe but was misidentified as N. degeerella until Kyrki (1981) revealed its true identity four decades ago. Kozlov (2004b) noted that the syntypes of this species (deposited in ZMHB) included two specimens of N. amatella and two specimens of N. degeerella . This species is very variable not only in external characters, including head color, the width of fascia, and length of apical yellow strips, but also in the melae genitalia, such as the shape of valva, uncus, and base of the aedeagus ( Kozlov 2004b). Currently, Kozlov (2023b) redescribed and reviewed this species with figures of adults and male genitalia. He noted that N. purpuratifera and/or some other species described by Sun et al. (2022) may appear junior synonyms of N. amatella .