Moth flies (Diptera: Psychodidae) are small fuzzy flies found in diverse habitats from mountains to urban areas, even in your house. Approximately 3,000 species among 6 subfamilies are recorded worldwide. However, in Korea, only 10 species from 3 genera of the subfamily Psychodinae have been recorded, including 8 species from North Korea. A preliminary study on moth flies in Korea was conducted using specimens collected via malaise traps and by hands from various locations in South Korea. As a result, Brunettia lungjingensis, Thornburghiella decoricornis, Philosepedon monstruosus and our friendly but unrecorded, Clogmia albipunctata are newly described in Korea. Brief descriptions, photographs, and illustrations of these four species are provided.

The family Pyralidae comprises over 6,000 species, and is composed of five subfamilies. Among those, the subfamily Phycitinae includes 3 genera, Addyme Walker, 1863, Calguia Walker, 1863, and Coleothrix Ragonot, 1888, with more than 3,300 species worldwide. However, several species of the genera have been erroneously stated and identified due to confusions caused by high morphological similarities. Therefore, we correct those errors through re-examinations of most of the type specimens, along with a diagnosis and table exhibiting the history of those genera. Additionally, we introduce two misidentified Korean pyralids belonging to the genus Addyme.

Chironomids are a large group of invertebrates that live in various aquatic habitats. The distribution range of these invertebrates has become varied due to anthropogenic impacts; as such, their distribution can be used as an indicator of environmental health. Adult chironomids are well known in South Korea; however, the larvae have rarely been studied due to difficulties associated with morphological classification. To address this lack of information, we collected larvae from four important rivers in South Korea and summarized their taxonomic morphological characteristics. The antennae, mandible, and mentum were used for larval taxonomic characterization. In this study, we describe the basic morphological features and key pictorial features of 20 species of chironomids, representing 16 genera.

맵시벌상과에 속하는 Testudobracon pleuralis Ashmead, 1906, Diadromus subtilicornis Gravenhorst 1829 2속 및 2종을 한국에서 처음으로 보고한다. 본 종의 형태진단, 분포, 삽화를 수록한다.

In the past, only one species known for Subtribe Physoderina from Korea. In this study reporting 2 genera and 2 species, Lachnoderma asperum Bates, 1883 and Physodera unicolor Ma, Shi & Liang, 2017, as new record to Korea. Taxonomic key, adult habitus, genitalia and distributional information are provided.

중기문응애목에 속하는 기생응애과(Parasitidae) 응애는 몸집이 크고 활동력이 왕성한 중요 토양 포식자이다. 토양응애 다양성 연구 중 국내 미기록종 기생응애과를 발견하여 보고하는 바이다. 이 논문에서는 온판기생응애속(genus Cycetogamasus) 2종, 한국온판기생응애(Cycetogamasus coreanus), 주름온판기생응애(C. corculatus), 두판기생응애속(genus Neogamasus) 5종, 두판기생응애(Neogamasus eogenualis), 티코미로비두판기 생응애(N. tikhomirovi), 이쁜두판기생응애(N. laciniatus), 경기두판기생응애(Neogamasus kengicus), 마훈카두판기생응애(Neogamasus mahunkai) 를 한국의 미기록종으로 보고한다.

Epyris Westwood, 1832 is the largest genus of Bethylidae with more than 300 nominal species and 19 species of Epyris have been recorded in Korea. The Epyris species are small to medium sized (2–10 mm) wasps with the palpal formula 6:3; the median lateral clypeal lobe reduced; pronotum usually longer than wide; notauli and parapsidal furrows present; scutellar pits not connected by a groove; basal vein of the fore wing arising almost at apex of subcostal vein. As results of taxonomic studies on Korean bethylids, Epyris emiae Terayama, a brachypterous species, is first discovered from South Korea. In this presentation, a diagnosis, figures of diagnostic characteristics of E. emiae are provided with a discussion on forewing veins of Korean bethylid genera.