Nemophora lapikella Kozlov, 1997

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 : 64-65

(74) Nemophora lapikella Kozlov, 1997

(Plates VIII-1, XVIII-5, XXVII-3)

Nemophora lapikella Kozlov, 1997b: 40 , figs. 1–6 (TL: Southern Primorye, Khasan reg., Slavjanka, Russia; MZH); Wang et al. 2000: 23–24; Kozlov 2002: 96 ( Japan, Kyushu, Kurodake); Dubatolov 2007: 43 ( Russia: Khabarovsk); Shao et al. 2008: 550 (Checklist of Taiwan); Hirowatari 2013: 110, fig. 3-09-27; Sun et al. 2022: 316, figs. 15, 38 (review).

Diagnosis. Compared with other species of the deggerella group, this species can be distinguished by the conspicuous silver-gray longitudinal stria separating the subapical radial striae; the valva is distinctly short, not beyond the apex of the uncus; and the median process of the transtilla has narrow base.

Specimens examined. [Hunan] 2♁ 2♀, Mt. Tianpingshan, Badagongshan National Nature Reserve, Sangzhi County, Zhangjiajie City, 2020.VI.19–23, C.Q. Liao leg.; 1♁ 3♀, Mt. Tianpingshan, Badagongshan National Nature Reserve , Sangzhi County, Zhangjiajie City , 2020.VII.5, C.Q. Liao & M. Deng leg. ; 6♁, Mt. Tianpingshan, Badagongshan National Nature Reserve , Sangzhi County, Zhangjiajie City , 2009.V.26–27, G.H. Huang leg. ; 1♁, Mangshan National Nature Reserve, Yizhang County, Chenzhou City , 2020.V.10, C.Q. Liao & M. Deng leg. ; 4♁, Badagongshan National Nature Reserve, Sangzhi County, Zhangjiajie City , 2009.V.27, G.H. Huang leg. ; 1♁, Mt. Tianpingshan, Badagongshan National Nature Reserve , Sangzhi County, Zhangjiajie City , 2018.IV.26, C.Q. Liao leg. ; [Guangxi] 4♁, Maoershan National Nature Reserve, Xing’an County, Guilin City , 1996.V.26, M. Sato leg. ( HUNAU) .

Distribution. China (Hunan, Guangxi, Hubei, Zhejiang, Shandong, Yunnan, Taiwan); Russia, Japan, Korea.

Remarks. Kozlov (1997b) described this species based on numerous specimens from different localities in Russia, China, and Korea, and placed it in the degeerella species group with other 14 adelids species from Southeastern Asia. This species shares with four other species ( N. chalybeella , N. sapporensis , N. polychorda and N.

staudingerella) the glossy metallic iridescent spot on the forewing outside the central fascia, which is directed along the veins and usually positioned between Rs 4 and M 2; however, it can differ from other species by different features in external characters or male genitalia, such as the coloration of the male antenna or forewing pattern, pair of carinae on the ventral wall of the aedeagus, and the absence of a funnel-shaped structure at the tip of the aedeagus.

This species occurs from July to August in Russia but mainly occurs from June to July in China and Korea.

Male adults are usually gregarious and swarming in the sunshine ( Kozlov 1997 b, 2002).

A DNA barcode of one N. lapikella specimen is generated. This species is closest to N. syfaniella (pairwise distances: 0.064 –0.066).