Machilus thunbergii (Laurales: Lauraceae, 후박나무) is planted as a street tree in Jeollanamdo and Jeju Island. Orthaga olivacea (Lepidoprate: Pyralidae, 제주집명나방) is known as a major pest of M. thunbergii. For managing O. olivacea by eco-friendly control method, the mating disruption would be expected. The sex pheromone of O. olivacea was identified as a mixture of (Z)-11-hexadecenyl acetate (Z11-16Ac), (Z)-11-hexadecenal (Z11-16Ald), and (Z)-11-hexadecenol (Z11-16OH) at a ratio of 100: 0.1:0.1 by Chinese research group. Before applying mating disruption, confirmation of its attraction in Korea was essential. The pheromone traps composed of Z11-16Ac alone and the blend of three components (100:0.1:0.1) were installed in Haenam, Jeollanamdo in 2021, and Jeju and Seogwipo, Jeju in 2022. In field attraction test, no O. olivacea was attracted to any trap. However, Mamesastra brassicae (Lepidoptera: Noctuidae), which was not intended, was caught in both years in the trap. Total of 19 in Haenam between September 23 and 30, total of 11 in Jeju between September 30 and October 28, and total of 108 in Seogwipo between September 15 and November 11 were caught to the trap lured with Z11-16Ac. While in the trap lured with the blend, total 1 and 6 were captured in Haenam and Seogwipo, respectively.

The Gwangneung arboretum, affiliated to the Korea Forest Research Institute, was established in 1987 and it became the Korea National Arboretum (KNA) in May 24, 1999. The entomological collection of KNA currently holds a total of 510,365 specimens of 6,849 species including more than 330 type specimens of Lepidoptera, Hemiptera, Hymenoptera, and Coleoptera are deposited. As the results of recent systematic studies by KNA entomologists, 67 new species were described, and 108 species were newly recorded from Korea and other countries. Not only we have conducted taxonomic studies but also have broaden our research boundary to natural enemy surveys for pine wilt disease vectors, plant and insect interaction, and exotic insect species monitoring. In this presentation, we would like to briefly introduce current entomological researches of KNA in the hope of future collaborations with other entomologists.

수노랑나비(Chitoria ulupi (Doherty, 1889))는 한반도 전역에 국지적으로 분포하는 종으로, 국외의 경우 인도, 미얀마, 라오스, 중국, 대만 등에 서식하는 것으로 알려져 있다. 이 종에 대한 생활사는 김과 서(2012)에 의해 확인된 유생기와 번데기의 형태 등이 일부 보고 된 것 이외에는 알려진 바가 없다. 본 연구에서는 한국산 수노랑나비의 생태적 습성(성충 산란행동, 점유행동, 짝짓기, 먹이습성 등)과 미성숙단계 (알, 유충, 번데기)의 형태적 특징 등 생활사 전반에 대하여 보고 하고자 한다.

The genus Etainia Beirne is one of the small group in the family Nepticulidae (Lepidoptera: Nepticuloidea) and is comprising 16 described species in the world. Among them, just four species have been known from the East Palearctic region. As results of taxonomic studies on Korean nepticulids, two species of Etania, E. peterseni Puplesis and E. trifasciata (Matsumura), are newly recognized from Korea. Description and illustrations of diagnostic characteristics including male genitalia for each species are provided with information of host plants.

The family Opostegidae (Lepidoptera: Nepticuloidea) is a small group that is comprising 192 described species with eight genera in the world. In Korea, only one species, Opostegoides minodensis (Kuroko), has been recorded since Park made a report on the distribution of the species in 1983. As results of taxonomic studies on the family, we discovered a newly recorded species, O. omelkoi Kozlov, for the first time from Korea. All the available information including distributional ranges and host plants is provided with images of diagnostic characteristics of adult and male genitalia.

흑백알락나비 (Hestina persimilis (Westwood, 1850))는 한반도의 평안남도 이남의 내륙지역에 넓게 분포하고, 국외의 경우 일본, 중국, 히말라야 일대에 서식하는 것으로 알려져 있다. 본 종에 대한 생활사 연구는 김과 서(2011)에 의해 월동유충, 종령, 번데기 등에 대한 일부 보고가 있을 뿐 자세한 생활사에 대한 기록은 전무하다. 본 연구를 통해 한국산 흑백알락나비의 생태적 습성 및 미성숙단계 (알, 유충, 번데기)의 형태적 특징 등 자세한 생활사 정보를 보고하고자 한다.

The Pyraustinae is one of the large subfamily in Crambidae. In Korea, more than 60 species in 20 genera of the Pyraustinae have been reported. Recently, Demobotys pervulgalis (Hampson, 1913) and Ecpyrrhorrhoe dissimilis (Yamanaka, 1958) were recorded by Choi et al. (2015). Among of the Pyraustinae, the genera Callibotys and Sinibotys were established by Munroe and Mutuura (1969). In this study, we report two species of genera Callibotys and Sinibotys from Korea for the first time, with a newly recorded genus Callibotys. Illustrations of adults, male and female genitalia, description are provided.

The genus Stigmella is one of the largest group in the family Nepticulidae (Lepidoptera: Neticuloidea), comprising 428 described species in the world. In Korea, totally eight species have been known to date so far we know. Recently two newly recorded species are collected from Gwangneung forest, Gyeonggi province, Korea. This study is aimed to report two species, S. omelkoi Puplesis, 1984 and S. kurokoi Puplesis, 1984, for the first time from Korea. These two species have been known as mining on Quercus (Fagaceae) in larva stage. We provide specific diagnosis, illustration of diagnostic characters for each species with available information including collection locality, host plant and distribution range.

While working on beetles collected by using flight interception trap, we found specimens possessing similar characters with salpingidine genus Lissodema Curtis. After detailed examination of the specimens and comparison with other Lissodema species, we concluded that these specimens represent a new species of the genus. The genus Lissodema was first proposed by Curtis based on Lissodema heyana Curtis and contains 19 species in the Palaearctic region. In eastern Asia, 14 and three species are recorded in Japan and Russian Far East, respectively, but no species have been reported from Korea. In this study, a description, habitus photographs and line drawings of diagnostic characters of a new species from Korea are provided.

Caloptilia Hübner, 1825 is one of the largest genera in Gracillariidae. 314 species have been known around the world. To date, 19 species were known from Korea. In the present study, one species, C. acericola (Kumata, 1966), is newly recognized from South Korea. Caloptilia acericola was first described from Japan and it also distribute Russian Far East. The name of this species was derived from the genus name (Acer, Aceraceae) of its host plant. We redescribed with illustrations of adults and genitalic structures to distinguish the species from the congeneric species in South Korea.