Cosmopterix flavidella Kuroko, 2011

Sohn, Jae-Cheon, 2022, New records of five species of Lepidoptera (Cosmopterigidae, Tortricidae, Pyralidae and Erebidae) from sand-dunes along the western coastline of Korea, Journal of Species Research 11 (1), pp. 61-66 : 62

Cosmopterix flavidella Kuroko, 2011

남ḏḅ날fflä나ḏ ( Figs. 1A , 2C)

Cosmopterix flavidella Kuroko, 2011: 107 . Type locality: Japan, Kyushu , Iriomote Isl., Uehara.

Description ( Fig. 1A ). Head with vertex dark grayish brown, with white streaks medially and laterally; labial palpus dark brown dorsally, white ventrally; antenna as long as forewing, pale grayish brown, partly intermixed with dark-brown scales. Thorax with tegula dark grayish brown, with white streaks laterally; mesonotum dark grayish brown, with white streak medially. Forewing length 3.4 - 5.1 mm, dark grayish brown, with two short and three long, transverse, white streaks in basal 2/3; discal spot small, black; distal 1/3 pale orange with two silvery-white longitudinal fasciae medially and along posterior margin; terminal line transverse, white; cilia pale grayish brown. Hindwing and cilia pale grayish brown. Male genitalia ( Fig. 2C) with right arm of uncus elongate, dilated in shoe-shape apically; anellus lobe narrow in basal half, broad, falcate and setose in distal half; valva broadened to apex, short-setose; costa upcurved in distal 1/3; phallus stout, broadened to base, open dorsally.

Material examined. 6♂, Chungcheongnam-do, Seocheongun, Seo-myeon, Sinhap-ri sand-dunes (N36°08 ʹ 47.6 ʺ, E126°32 ʹ 33.6 ʺ), 20 August 2020 (JC Sohn), GJUE & NIBR . 2♂, Jeollanam-do, Sinan-gun, Is. Jaeundo, Jaeun-myeon, Gojang-ri , Oegi sand-dunes (N34°53 ʹ 44.5 ʺ, E126°00 ʹ 27.4 ʺ), 16 July 2017 (JC Sohn), [ GSN] SJC-1254, GJUE .

Distribution. Korea (new record), Japan, Taiwan, China (Jiangxi).

Host plants. Poaceae - Saccharum kanashiroi (Ohwi) Ohwi ( Kuroko, 2011) .

Remarks. Kuroko (2015) assigned this species to the coryphaea species-group in the genus Cosmopterix . This species seems to occur in various types of habitats including sand-dunes.

Figures

Fig. 1. Adult habitus. A. Cosmopterix flavidella Kuroko, 2011, male. B. Noduliferola abstrusa Kuznetzov, 1973, female. C. Maliarpha borealis Sasaki, 2012, male. D. Ectoblemma rosella Sugi, 1982, female. E. Metachrostis miasma (Hampson, 1891), male. Scale bars=4 mm.