The genus Hyadina Haliday, 1830 is reported for the first time from Korean fauna along with two nominate species: Hyadina fukuharai Miyagi, 1977, and H. pulchella Miyagi, 1977. Their diagnoses, external feature, and a key of these species are provided here.

Until now, only two species of Dichaetomyia Malloch have been recorded in the Korean fauna. In this study, we report two unrecorded species for the first time in Korea. External photographs, key to Korean species and taxonomic information are presented herein.

The genus Muscidideicus Becker, 1917 is comprised of only one species, M. praetextatus (Haliday, 1855) reported in west Palearctic region. The adults were typically found on sandy beach within the intertidal zone. In the survey of Korean fauna, authors found three new to science species of this genus on the west sea side of Korean Peninsula and Jeju Island. Descriptions and figures of external features of new to science species and key to species of the world are provided here.

Hitherto, 37 species in 10 genera under 4 subfamilies have been known from the Korean Peninsula. In this study, three newly recorded species are reported for the first time from Korea: Conops ceriaeformis ussuriensis Zimina, 1974, Physocephala pielina Chen, 1939, and Myopa picta Panzer, 1797. Morphological diagnoses and illustrations of these species are presented. Additionally, a key to all species of Conopidae from Korea is also provided.

The Miltogramminae (Diptera: Sarcophagidae) includes 600 species divided into more than 40 genera. The biological feature of the miltogrammine species is being kleptoparasites in the nests of solitary wasps and bees, but insect parasitoids and termite inquilines have been also recorded. In Korea, only three species in two genera have been recorded. In this study, five unrecorded species (Amobia oculata, Metopia inermis, Metopia nudibasis, Miltogramma angustifrons and Phylloteles formosana) are reported for the first time in Korea. The diagnosis, photographs and checklists are provided herein.

Helina Robineau-Desvoidy (어리가시집파리속, 신칭)은 집파리과(Muscidae) 가시집파리아과(Phaoniinae)에 속하는 큰 분류군 중 하나 로 전세계에 540여종이 기록되어 있다. 그러나 한국에서는 아직까지 기록이 이루어진 바가 없으며, 이번 연구를 통해 한국미기록속 Helina Robineau-Desvoidy 및 미기록종 H. deleta (Stein, 1914), H. evecta (Harris, 1780), H. subpubiseta Xue, 1986을 처음으로 보고한다. 또한, 분류 학적 정보, 형태학적 사진 및 검색표를 작성하였다.

Brachydeutera Loew, 1862(코주부물가파리속, 신칭)는 물가파리과, 물가파리아과에 속하는 작은 분류군이다. 지금까지 이 속에는 전 세계 적으로 16종이 기록되어 있으며, 모든 동물구계에서 발견되지만 아열대 및 열대 지방, 특히 아프리카와 아시아에서 종 다양성이 풍부하다. 본 연구 를 통해 Brachydeutera속을 국내 미기록종 B. meridionalis (Rondani, 1856)(코주부물가파리, 신칭)과 함께 처음으로 보고하며, 이 종에 대한 진단 형질, 형태학적 사진 및 생태사진을 제공하였다.

The family Periscelididae Oldenberg is reported for the first time from Korean fauna along with three nominate species, Cyamops hotei Sueyoshi, 2004, Stenomicra angustiforceps Sabrosky, 1965 and S. fascipennis Malloch, 1927. Stenomicra have been collected at grassy areas, whereas Cyamops have been founded near wet habitats. The descriptions and illustrations of external features of these species are provided here.

The genus Acymatopus Takagi is reported for the first time from Korean fauna along with two nominate species, A. minor Takagi, 1965 and A. takeishii Masunaga, Saigusa & Yang, 2005. This genus belonging to the subfamily Hydrophorinae in the family Dolichopodidae, is comprised of only six species in the world and distributed only in Japan and China yet. Both adults and larvae of this genus are known to be found on rugged and rocky marine shores of the tidal zone. The authors found the first recorded species in the west seaside of Korea, where many barnacles are inhabited. The descriptions and illustrations of external features including male genitalia of newly recorded species are provided here.

The genus Kurahashiodes is a monotypic genus that only recorded in Japan with Kurahashiodes suenagai. This species was first known by Wohlfahrtiodes suenagai in 1994, but reorganized with the new genus Kurahashiodes by Verves in 2001. Kurahashiodes was close to genus Wohlfahrtia but can be distinguished by R1 haired, surstylus narrow, phallus without ventral protuberance. This genus is reported for the first time in Korean fauna. The diagnosis and photographs of the Kurahashiodes suenagai are provided herein.

Smartphone camera quality has been progressing alongside the advancement of the smartphone market. Consequently, there has sparked interest in macro photography of insects using smartphones either through using built-in "macro mode" or accessories like macro lenses, mounts, and auxiliary lighting. However, some limitations have become apparent, including challenges in capturing small insects, a short focal distance of no more than 10 cm, a narrow focus range, and lower image quality compared to dedicated cameras. We introduce an effective knowhow to these problems when taking pictures of insects in the field using a smartphone. And it provides a manual for tele-macro photography in the field, and suggestions for the future direction of smartphone and accessory development.

The genus Brachydeutera Loew, 1862 is a small group of acalyptratae flies belonging to the subfamily Ephydrinae in the family Ephydridae. Up to now, 16 described species have been recorded worldwide, and although it occurs in all fauna regions, it is most diverse in the subtropics and tropics, particularly in Africa and Asia. This genus is recorded for the first time in the Korean fauna based on the discovery of a nominated species, Brachydeutera meridionalis (Rondani, 1856). Diagnoses, figures of morphological features, and an ecological photograph of the firstly recorded species are provided herein.