The family Nitidulidae, the largest group in Cucujoidea, comprises approximately 350 genera and nearly 4,500 recorded species across ten subfamilies. In Korea, 86 species of Nitidulidae have been recorded. They are well-known for their diverse feeding habits. Anthophagy is a common habit, with certain species from the Epuraeinae, Carpophilinae, and Meligethinae recognized as pollinators. Despite their ecological significance, these groups rarely studied in Korea, due to their small size and morphological similarities. Our study reviews Korean species in three subfamilies, identifying 14 unrecorded species and 2 newly described species, and describes their ecological habits.

Calonecrinae represent a unique but small subfamily of Nitidulidae that is endemic to South Asia. Their habitats, the South Asian lowland forests, are under the imminent threat of degradation, posing a risk of rapid extinction for these species in their specific locales. Despite the looming threat to their existence, our understanding of this enigmatic group remains limited. We conducted an examination of museum and newly collected specimens, alongside a review of the literature, leading to the discovery of a new species, Calonecrus mindanaoensis, from Mindanao, Philippines. For the first time, the morphology of all immature stages of the Calonecrinae was described, with detailed photographs including SEM images. Additionally, their natural history was uncovered for the first time, revealing that all life stages are uniquely adapted to spending their entire life cycle within sticky resin. We re-evaluated the phylogenetic placement of the Calonecrinae by constructing a phylogenetic tree based on the mitochondrial genome. Calonecrinae are positioned within the Epuraeinae clade and show significant affinity with the genus Trimenus. Consequently, this study proposes reclassifying Calonecrinae as Calonecrini stat nov, an extremely modified tribe within the Epuraeinae.

The Nitidulidae includes 10 subfamilies and over 350 genera and 4500 species and is the largest family in Cucujoidea. We place the enigmatic subfamily Calonecrinae into the internal relationship of Nitidulidae, a comprehensive molecular phylogenetic analysis was performed using five gene regions (COI, 28s, CAD, H3, Wingless) for 80 taxa. We included 73 ingroup taxa representing nine of the ten currently recognized subfamilies of Nitidulidae and 7 outgroups. The phylogenetic results are consistent with prior molecular studies, that include a polyphyletic Nitidulinae with the inclusion of Meligethinae and Cillaeinae and that the Calonecrinae is sister taxon to Epuraeinae. Ancestral state reconstruction of feeding behavior indicates that stem group nitiduilds were most probably sap-feeding with transitions to other feeding types independently derived multiple times.

지난 19년간(2000~2018.9) 검역현장에서 검출된 해충의 종류는 2,028종이며 150,379회 이다. 이중 곤충은 1,745종으로 86%이며, 딱정벌레목은 검출종 중 740종, 42,4%로 검역적으로 매우 중요하다. 밑빠진벌레과(Nitidulidae)는 딱정벌레목 머리대장상과에 포함되고, 검출율은 9.0%이다. 검출율이 가장 높은 종은 Brachypeplus rubidus로 1,415회 검출되었으며, Carpophilus obsoletus는 999회, Carpophilus hemipterus는 927회, Carpophilus dimidiatus는 477회 검출되었다. 본 연구는 검역과정에서 검출되는 밑빠진벌레과의 Carpophilus 속에 속하는 종들에 대해 검토 하였다. 또한 이들의 외형적 특징과 종의 분류 검색을 제시 하고자 한다.

The tribe Cyllodini is reviewed as 10 species of three genera from Korea, including two new species Pallodes sp. nov. and Cyllodes sp. nov. and one newly recorded species Neopallodes vicinus Grouvelle 1892. A key to species from Korea, comments on external and genital structures, biology, illustrations of structures, including the genitalia of both male and female of the Korean Cyllodini species are provided.

The subfamily Nitidulinae in Korea is reviewed with a pictorial key to species. In total, 30 species of 18 genera are recognized including three newly recorded genera, each with one species respectively: Nitidula rufipes (Linnaeus, 1767), Stelidota multiguttata Reitter, 1877 and Hebasculinus japonus (Reitter, 1877). Pictorial key to tribes, genera and species with illustrations of habitus are provided.

Family Nitidulidae is the second largest family in Cucujoidea which includes ten subfamilies. Because of their morphological and biological diversity, the phylogenetic relationship within Nitidulidae is one of the most debated topics among Cucujoidea phylogeny and yet, is still open to many questions. To recover the internal relationship of Nitidulidae, we performed ML and BI analyses that targeted on five gene regions (COI, 28s, CAD, H3, Wingless) for 73 taxa. We include 67 ingroups containing nine of the ten currently recognized subfamilies of Nitidulidae and 6 outgroups. The phylogenetic results suggest followings i) Subfamilial status of Prometopinae is reconfirmed; ii) Epuraeinae is paraphyletic with inclusion of Calonecrinae; iii) Nitidulinae is paraphyletic with inclusion of Meligethinae and Cillaeinae. In addition, the generic relationships within Nitidulinae and the evolutionary history of their feeding behaviors are also briefly discussed.

아프리카 원산의 벌집꼬마밑빠진벌레(Small Hive beetle; SHB; Aethina tumida Murray)는 1998년대 미국 양봉장에서발견되면서 서양종꿀벌의 중요한 해충이 되었다. 이 곤충이 2016년 9월 경상북도 밀양시에서 국내 최초로 발견되었다.SHB의 국내 온도 환경에 적응성을 평가하기 위하여, 온도 처리에 따른 발육기간, 사망률을 조사하고, 발육영점온도,발육최적온도, 그리고 고온발육장애온도를 추정하였다. Incubator에서 6개의 온도(15, 20, 25, 30, 35, 38℃)를 이용하였으며, 24plate-wall에 개별사육 하였으며 하단부에 충분한 먹이를 투입하였다. 온도별 사망률은 각각 72.9, 97.9, 97.9,72.9, 54.2%(20, 25, 30, 35, 38℃)였으며, 15℃에서는 모든 알과 20℃에서 1령충까지 사육한 유충 모두 사망하였다.알에서 성충이 될 때까지 기간은 20℃ 47.8±0.4, 25℃ 38.6±0.3, 30℃ 33.5±0.4, 35℃30.6±0.5, 38℃ 28.0±0.6일로 조사되었다. 외부 온도가 15℃이하일 경우 SHB는 발육이 불가능 하며, 38℃ 이상일 경우도 50%이상이 사망하는 것을 보아SHB는 외부 온도 환경에 대한 발육속도와 사망률의 차이가 극심한 것을 확인하였다.

Genus Soronia Erichson, 1843 (Coleoptera, Nitidulidae) are reviewed from Korea. Two species Soronia fracta Reitter,1884 and Soronia grisea (Linnaeus, 1758) are previously known from Korea, one species Soronia lewisi Reitter, 1884is first recorded from Korea. A key to species from Korea, comments on external and genital structures, biology, illustrationsof structures, including the genitalia of both male and female of the Korean Soronia species are provided.

The subfamily Cryptarchinae Thomson, 1859 from Korea is reviewed. This study is the first part of the revision, treating two genera. Here we record Subgenus Glischrochilus Reitter, 1873, genus Pityophagus Shuckard, 1839 for the first time in Korea. Descriptions, photograph of morphological and genital structures and a key to species are provided herein.

A genus Omosita Erichson, 1843 which belongs to the sap beetle, Nitidulidae, is reviewed from Korea. Two species Omosita colon (Linnaeus, 1758) and O. japonica Reitter, 1874 are previously known from Korea, one species O. discoidea (Fabricius, 1775) is first recorded from Korea. A key to species, re-descriptions, biology, illustrations of both male and female of the genus Omosita are provided.

The genus Glischrochilus Reitter, 1873 is characterized by reddish or yellowish markings on their elytra. This genus is belonging to family Nitidulidae Latreille,1802. Five species in this genus: Glischrochilus (Librodor) ipsoides (Reitter, 1879), Glischrochilus (Librodor) japonicus (Motschulsky, 1858), Glischrochilus (Librodor) pantherinus (Reitter, 1879), Glischrochilus (Librodor) parvipustulatus (Kolbe, 1886), Glischrochilus (Librodor) rufiventris (Reitter, 1879) have been recorded in Korea upto now. Additionally, a new recorded species, G. christophi, are recognized from korea. As the results, descriptions and illustrations of adults of totally five species with one newly recorded species in Korea were reviewed herein. A key to Korean species of genus Glischrochilus is also provided.

The subfamily Prometopinae Böving and Craighead, 1931 (Coleoptera: Cucujoidea: Nitidulidae) is newly recorded from Korea. We recognized two species in two different genera; Prometopia unidentata Hisamatsu, 1959, Parametopia x-rubrum Reitter, 1884. In this study, we provide re-description, photographs and a key to species based on Korean specimens.

Nitidulid beetles of the genus Aethina Erichson, 1843 are a well-known group as harmful to agricultural and apicultural industry, especially including A. tumida, an American small hive beetle, which is a beekeeping pest. The world-widespread genus Aethina, within subfamily Nitidulinae and family Nitidulidae, is presented 5 subgenera and 28 species in Palaearctic region. Until now, 2 subgenera, Aethina s. str. and Aethina (Circopes), and 3 species, A. (A.) flavicollis, A. (A.) inconspicua and A. (C.) suturallis, have been recorded in Korea, and we added one more species, A. (A.) maculicollis as a newly recorded species. The larvae of A. (A.) maculicollis have been reported as pests of mulberry fruits in Japan. In this study, we report the taxonomic key to the genus Aethina of Korea, and morphological description of A. (A.) maculicollis.