Genus Nacoleia belongs to the subfamily Pyraustinae of the family Crambidae, with more than 400 described species in the world (Bae et al., 2008). A total of 4 species have been recorded from Korea to date (Bae et al., 2008; Byun et al., 2009). During the course of the recent survey, we found two newly recorded species of the Genus Nacoleia. In this study, we reviewed the genus with two newly recorded species.

The aim of the present study is to update our knowledge of the fauna of the Genus Nacoleia in Korea with recently collected materials. All the examined material for each species is enumerated with their localities and available information. Also the checklist of the Genus Nacoleia in Korea is provided.

Materials and methods

Material examined for this study was deposited in the entomological collection of Hannam University, Daejeon, Korea (EHNU). All available genitalia were dissected and made on slide glass with Euparal mountant for identification of the species. The color standard for the description of adults was based on the Methuen Handbook of Colour (Kornerup and Wanscher, 1978). Abbreviation used in this study is as follows: TL-type locality, GS-genitalia slide number.

Taxonomic accounts

Order Lepidoptera Linnaeus, 1758 나비목

Family Crambidae Latreille, 1810 포충나방과

Subfamily Pyraustinae 들명나방아과

Genus NacoleiaWalker, 1859

=SemiocerosMeyrick, 1884

=Aplomastix Warren, 1890

=Metasiodes Meyrick, 1894

=Orthocona Warren, 1896

Nacoleia chrysorycta (Meyrick, 1884) 흰무늬애기들명나방 (Fig. 1)

Semioceros chrysoryctaMeyrick, 1884: 320. TL: Australia.

Nacoleia contingens Moore, 1885: 273. TL: Sri Lanka.

Adult. Wingspan 17 mm. Ground color of forewing and hindwing orange with distinct blackish antemedial and postmedial lines and patterns. Termen of hindwing with protruded area medially.

Distribution. Korea, China, Japan, Taiwan, Myanmar, Sri Lanka, Australia.

Remarks. Adults fly from June to July (Bae et al., 2008).

Nacoleia commixta (Butler, 1879) 얼룩애기들명나방 (Fig. 2)

Samea commixtaButler, 1879: 453. TL: Japan

Nacoleia costisignalisMoore, 1885: 273. TL: Sri Lanka.

Adult. Wingspan 17 mm. Forewing and hindwing with ground color yellowish brown; postmedial line black.

Distribution. Korea, China, Japan, Taiwan, Nepal, India, Sri Lanka.

Remarks. Adults appear from May to August. It is distributed countrywide in Korea. This species is superficially similar to N. sibirialis, but it can be distinguished by the light color of the wing (Bae et al., 2008).

Nacoleia inouei Yamanaka, 1980 가검은애기들명나방(신칭) (Figs. 3, 7, 8)

Nacoleia inouei Yamanaka, 1980, Tinea 10: 323, Figs 1, 6, 7.

Adult (fig. 3). Wingspan 12 mm. Forewing with ground color pale creamy yellow; a blackish gray scales along the costa, reaching to 3/4 of the costa, two small blackish spots presented near apex; antemedial, medial and postmedial line blackish gray. Costa straight, with somewhat rounded apex. Cilia pale creamy yellow, dark gray near tornus. Hindwing with same ground color as forewing, a blackish gray area developed outer 1/3; antemedial and postmedial line blackish gray, the latter with outward convex near middle part. Cilia pale yellow, mixed with grayish color basally.

Male genitalia. As shown in Fig. 7.

Female genitalia. As shown in Fig. 8.

Material examined. 1♂,1♀, Tamra Univ., Seoguipo-city, Jeju, 5.IX.2012 (S.S.Kim), genitalia slide no. 4054; 1♀, Umeori (Geoncheon), Sannae-myeon, Geongju Prov. Gyeongbuk, 16.VII.2012 (S.S. Kim), genitalia slide no. 4055-coll. EHNU.

Distribution. Korea (new record), Japan.

Remarks. Adults fly on August in Japan (Inoue, 1982).

Nacoleia satsumalisSouth, 1901 원무늬애기들명나방(신칭) (Figs. 4, 9)

Nacoleia satsumalisSouth, 1901: 461.

Adult (Fig. 4). Wingspan 16 mm. Forewing with ground color pale yellow; costa nearly straight, with slightly narrowed apex; a blackish basal line running from 1/5 of costa to 1/4 of dorsum; two ring-like pattern presented on costa; one ring-like pattern on the outer side of basal line; two short lines from the below of costal ring-like pattern at middle; a blackish line originated from 5/6 of costa towards dorsum then, abruptly curved to inside, running to under the cell, then curved again to 3/4 of dorsum; rather dark grayish along the termen. Cilia dark gray mixed with light yellow, rather darkened basally. Hindwing pale yellow; antemedial and postmedial lines grayish black; distal 1/3 of hindwing slightly dark gray. Cilia same as that of forewing.

Male genitalia. Unknown.

Female genitalia. As shown in Fig. 9.

Material examined. 1♀, Bangdongyaksu, Mt. Bangtae, Inje, 21.VIII.2012 (S.S.Kim), genitalia slide no. 4056-coll. EHNU.

Distribution. Korea (new record), Japan.

Nacoleia sibirialis (Milliere, 1879) 가루뿌린들명나방 (Fig. 5)

Stenia sibirialisMilliere, 1879: 139. TL: Russia (Askold Is.).

Agrotera(!) fenestralis Christoph, 1881: 39. TL: Russia (Amur).

Nacoleia maculalisSouth, 1901: 462.

Adult. Wingspan 15-18mm. Forewing and hindwing with patterns complicated, light yellow on the inner side of postmedial line.

Distribution. Korea, China, Japan, Russia.

Remarks. Adults fly from May to October (Bae et al., 2008).

In “Microlepidoptera of Korea” (Park, 1983), this species was listed as Nacoleia maculalis South.

Nacoleia tampiusalis (Walker, 1859) 노랑애기들명나방 (Fig. 6)

Botys tampiusalisWalker, 1859: 704. TL: Malaysia (Sarawak).

Adult. Wingspan 15-17mm. Forewing and hindwing light grayish yellow. Hindwing with postmedial line slightly black, terminal area without blackish brown.

Distribution. Korea, China, Japan, Nepal, Indonesia.

Remarks. This species can be found countrywide in Korea including Jeju island (Bae et al., 2008).