The family Ichneumonidae belongs to the order Hymenoptera, class Insecta, and includes over 25,000 valid species in 47 subfamilies worldwide. The family occurs worldwide, with more species in cool moist climates than in warm dry ones. Ichneumonids are parasitoids of immature holometabolous insects or Chelicerata (Araneae and Pseudoscorpionida eggs adult Araneae). Symphyta and Lepidoptera, which are agricultural and forestry pests are the most common hosts. Therefore, they are one of most important control agents of the pest populations. This family is known as a monophyletic group with the family Braconidae. The inventory of the Hymenoptera fauna of the Korean peninsula was started from the end of the last century (1887) by O. Radoszkowski. A comprehensive historical review of the faunal study of Hymenoptera has been prepared by Kim (1963) who recorded 921 species, 382 genera in 76 families from the Korean peninsula. Among them, 271 species of Ichneumonidae had been recorded until 1970 from South Korea. Since then, taxonomic study of Ichneumonidae has developed steadily over the past 30 years by several Korean taxonomists. Recently, the frequency of collaboration with foreign specialists has also increased. The current total of South Korean Ichneumonidae is 921 species in 302 genera of 29 subfamilies. It is hoped that more collaborative work in the future will help describe the country’s rich diversity.

한국산 수염잎벌아과의 미기록종인 살구나무테두리잎벌(신칭)을 확인하고 처음으로 보고한다. 본 종은 2016년 처음 국내에서 발견되어 살구나무를 가해하는 해충으로 보고되었고, 본 연구를 통해 최초로 종을 규명하고자 한다. 살구나무테두리잎벌의 생활사 및 생태사진과 기재 및 주요 형질 사진을 제공한다.

Asaphinae Ashmead, 1904 are the smallest subfamily in Pteromalidae and currently include 27 extant species of 6 genera. Up to date, only 2 species, Asaphes suspensus (Nees) and A. vulgaris Walker, have been recorded from South Korea. Among them A. vulgaris Walker is suspected of misidentified due to several reasons. Hyperimerus Girault, a small genus of the subfamily Asaphinae, consists of two world-wide species. It is close to Asaphes Walker but is separated by the following characteristics: antenna with one anelliform segment; scutellar frenum not distinct; petiole transverse. In this study, we report genus Hyperimerus based on Hyperimerus pusillus (Walker) for the first time from South Korea and Eastern Palearctic region. Also, a key to the genera of Asaphinae from South Korea, diagnosis, photographs of each species and taxonomic note of A. vulgaris Walker are provided.

Tineobius Ashmead, 1896 is a relatively small group in the family Eupelmidae. It can be distinguished by the following characters: head with conspicuously lengthened maxillary palpus, mesotibia without apical groove, gaster with deeply emarginate syntergum and filiform ovipositor sheaths. Most species of Tineobius were recorded from Afrotropical, Australasian and Oriental region. However, in Palearctic region, only one species (Tineobius tamaricis Ribes & Fusu) is discovered from Spain by Fusu & Ribes (2017). In this study, the genus Tineobius is reported from South Korea for the first time, with two newly recorded species. Also, a key to South Korean species of Tienobius, diagnoses and photographs of the diagnostic characteristics are provided.

The subfamily Pimplinae currently include 1,737 worldwide species in 77 genera. 78 species in 21 genera have been recorded from South Korea. Among them, the genera Exeristes, Gregopimpla and Paraperithous are small groups with 10, 8 and 6 species from worldwide. The existing South Korean Exeristes and Paraperithous include only one species, E. roborator (Fabricius) and P. chui (Uchida). Three species of genus Gregopimpla have been recorded from South Korea, G. himalayensis (Cameron), G. inquisitor (Scopoli) and G. kuwanae (Viereck). In this study, we report three newly recorded species Exeristes longiseta (Ratzeburg), Gregopimpla ussuriensis Kasparyan and Paraperithous gnathaulax (Thomson) from South Korea, including diagnoses, photographs of newly recorded species and keys to the species of South Korean Exeristes, Gregopimpla and Paraperithous.

The subfamily Pimplinae comprising more than 1,700 described species within 77 genera worldwide. Sixty-nine specieswithin 20 genera have been recorded from South Korea. Among them, the genus Endromopoda is a small sized groupin the subfamily Pimplinae with 11 described species from Nearctic, Oriental and Palaearctic regions. This genus is newlyrecorded from South Korea for the first time. Genus Endromopoda can easily be distinguished from other genera of Pimplinaeby the following characters:　Distinctly depressed ovipositor, with perpendicular teeth on apex; elongated propodeum.In this study, we report three unrecorded South Korean species, Endromopoda arundinator (Fabricius,1804), Endromopoda detrita (Holmgren, 1860) and Endromopoda phragmitidis (Perkins, 1957). In addition,diagnoses, photographs of newly recorded species and a key to the species of South Korean Endromopodaare provided.

한국산 자루맵시벌속(Genus Netelia Gray)의 12개 아속 중 하나 인, 애자루맵시벌아속의 분류학적 연구를 수행하였으며, 그 결과로 1미기록 종[Netelia (Parabates) nigricarpus (Thomson, 1888) (검은점애자루맵시벌: 신칭)]을 국내에 처음 보고한다. 애자루맵시벌아속의 3종에 대한 식별 형질과 외형 사진을 제공한다.

Three new species of the subgenus Bessobates of the genus Netelia Gray, 1860 are described. Two new species, Netelia (Bessobates) sp. nov. 1 and N. (B.) sp. nov. 2, are described and illustrated from South Korea and Japan. N. (B.) sp. nov. 3 is reported from Brunei. Descriptions of three new species, photos and illustrations of male genitalia are provided. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1A6A3A03007788).

The subgenus Parabates Förster, 1869 is one of 12 subgenera of the genus Netelia belonging to the subfamily Tryphoninae. Parabates of the genus Netelia is a small subgenus with only six species worldwide. In South Korea, Lee & Cha (1996, 2000) reported N. (P.) fusca Konishi and N. (P.) ishiharai Uchida. In the present study, an additional species, N. (P.) nigricarpus, is recorded for the first time from South Korea. Diagnoses and photographs of the diagnostic characteristics of known species are provided. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1A6A3A03007788).

South Korean species of the genus Eusterinx Förster are reviewed here. Nine species of the genus Eusterinx are found to occur in South Korea, and five species, Eusterinx (Eusterinx) sp. nov. 1, E. (Holomeristus) sp. nov. 2, E. (Ischyracis) sp. nov. 3, E. (Ischyracis) sp. nov. 4, and E. (Ischyracis) sp. nov. 5, are described as new. A key to all known species of the genus Eusterinx occurring in South Korea is provided.

Netelia Gray, 1860, a largest genus within the subfamily Tryphoninae and its distribution is worldwide. The members of Netelia are known to be ectoparastic koinobionts of lepidopteran larvae. More than 330 species have so far been recorded and divided into 12 subgenera. Among them, the subgenus Amebachia Uchida, 1928 was reported as a genus by Uchida (1928) based on Amebachia baibarana from Taiwan. The lectotype of Amebachia baibarana Uchida, 1928, was re-examined and then this species should be a subgenus of the genus Netelia by Konishi (2010). Consequently, five currently valid species of Netelia (Amebachia) have been described in the world. As a result of the present study, the subgenus Amebachia belonging to the genus Netelia is reported from South Korea for the first time based on a species of Netelia (Amebachia) rasilella and N. (A.) yoshimatsui. Redescriptions and photographs of the diagnostic characters of two species are provided. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1A6A3A03007788).

이전까지 한국산 점박이납작맵시벌속은 1955년 김에 의해 보고된 1종이 유일했으나, 본 연구를 통해 6미기록종을 처음으로 보고한다. 또한 본 논문에서는 동구북구지역에 보고된 점박이납작맵시벌속의 검색표와 한국산 점박이납작맵시벌속의 기재 및 사진을 제공하였다.

The Banchinae are a large cosmopolitan subfamily that includes approximately 1,700 species in 65 genera. The number of species in South Korea is still pooly known and only 18 of the 275 Eastern Palaearctic species have been reported. Most species are koinobiont endoparasitoids of Lepidopteran larvae and pupae. A few banchines also parasitize Coleoptera and Hymenoptera. This subfamily is divided into three tribes; Atrophini, Banchini and Glyptini. The former is the largest tribe with 953 species in 40 genera, and is easily distinguished from two other tribes by the tergites without oblique grooves and the nevellus which is intercepted at middle. Cryptopimpla is moderately large genus with worldwide distribution. As a member of tribe Atrophini, Cryptopimpla can be distinguished by follow: Occipital carina connected with hypostomal carina; epomia absent; lower half of mesopleuron weakly convex; ovipositor sheath 0.5-1.0 times as long as hind tibia; ovipositor tip with subapical dorsal notch. Until now the genus was not found in Korean fauna. Here we report four species, two of them are described as new to science. The description is given also for newly reported male of Cryptopimpla brevigena Kuslitzkii and C. carinifacialis Sheng. A key for South Korean species is proposed.

The subfamily Cylloceriinae were recorded 33 species of three genera, Allomacrus Förster (five species), Cylloceria Schiødte (27 species) and Rossemia Humala (one species), worldwide. The genus Cylloceria can be recognized by following characters: head and face wider than high; anterior margin of clypeus impressed; basal flagellomeres strongly elongate; mesoscutum with distinct notauli; tarsal claw simple; ovipositor long, equal or longer than metasoma. In male of Cylloceria, 3rd and 4th antennal flagellomeres with tyloids of specific shape, which is semicircular emargination and rather deep and distinct. In this study, Korean species of the genus Cylloceria Schiødte are reviewed. Five species of Cylloceria and the subfamily Cylloceriinae are reported for the first time from South Korea, including one new species. Description with photographs of the new species, diagnoses, and a key to South Korean species of Cylloceria are provided.

줄뭉툭맵시벌속은 전세계에 145종이 분포하는 비교적 큰 맵시벌 그룹이다. 줄뭉툭맵시벌속은 동구북구 지역에 41종이 기록되어 있으나, 한국에는 8종만이 기록되어 있다. 본 연구에서는 한국산 줄뭉툭맵시벌속 내 13종을 재고찰 하고자 한다. 추가적으로, 미기록 5종을 한국에 처음으로 기록하였으며, 한국산 줄뭉툭맵시벌속의 검색표와 재기재문, 사진을 제시 하였다.

본 연구에서는 검정꼬마자루맵시벌속 (Cremastus Gravenhorst, 1829)과 가시자루맵시벌속 (Pristomerus Curtis, 1836)의 3미기록종 (Cremastus crassitibialis Uchida, 1940, Pristomerus rufiabdominalis Uchida, 1928 and P. scutellaris Uchida, 1932)을 우리나라에 처음으로 보고 한다. 이 중 검정꼬마자루맵시벌속은 국내에서 처음으로 기록되는 속이다. 본 연구결과인 3 미기록종을 포함하여 현재 배자루맵시벌아과는 국내에 4속 11종이 기록되어있다. 본 논문에서는 한국산 배자루맵시벌아과의 속 검색표, 미기록종의 재기재문 및 이미지를 제공하였다.

본 연구에서는 기생성 맵시벌과의 4종에 대하여 새로운 숙주를 보고하고자 한다. 4종의 맵시벌과는 황오색나비 (나비목: 네발나비과), 밤색하 늘소 (딱정벌레목: 하늘소과), 황다리독나방 (나비목: 독나방과)의 번데기에서 각각 발견되었다. 본 논문에서는 맵시벌과 4종의 간략한 식별형질과 사진정보, 황다리독나방에 기생하는 맵시벌과의 목록을 제시 하였다.

Orussidae is a unique family belonging to the ‘Symphyta’, Hymenoptera. It is a small group of parasitoid sawflies, consisting of about 90 known extant species in 15 genera in the world. Most species of Orussidae are thermophilous and imagines are active during the hottest hours of the day. Therefore, orussids are rarely collected. They are known to be idiobiont ectoparasitoids of larvae of wood-boring beetles such as Buprestidae and Cerambycidae or Hymenoptera such as Siricidae and Xiphydriidae, although records of orussids parasitizing introduced siricids in New Zealand do not constitute a natural host relationship. Within the family, Orussus is the largest and most widely distributed genus. Currently, 28 valid species are recognized. Recently, Vilhelmsen et al. (2014) reported three new species of the genus Orussus from the Oriental region. Here we describe a new species, Orussus sp. nov., from South Korea and provide a revised key to the eastern Palaearctic species of Orussidae. Also, phylogenetic analyses place the new species basally in Orussus, together with other species from the Far East.

Fivenewly recorded subfamilies, Diacritinae, Microleptinae, Orthocentrinae, Orthopelmatinae, and Phrudinae, were the small and rare subfamilies of the family Ichneumonidae except Orthocentrinae. The first subfamily Orthocentrinae have been reported 31 genera with 481 species worldwide but we have a very poor knowledge of this subfamily in Korea. This subfamily is known for larval koinobiont endoparasitoids of Diptera (Humala, 2008). The second subfamily Diacritinae have been reported six species in the world and distributed four species in the Eastern Palaearctic (Yu et al., 2012). The third subfamily Microleptinae have been recorded only one genus with 13 species in the world. Among them 10 species are distributed in the Eastern Palaearctic. The fourth subfamily Orthopelmatinae have been reported nine species of one genus in the world, five species in the Eastern Palaearctic. The final subfamily Phrudinae have been reported 29 species in the world, five species in the Eastern Palaearctic. The subfamily Eucerotinae have been recorded 50 species in the world and four species from Korea. This subfamily is known for hyperparasitoids of Ichneumonoidea (Wahl & Sharkey, 1993). In this paper we report not only five newly recorded subfamilies new to Korean fauna but also eight newly recorded species included two species of Eucerotinae for the first time from Korea.

The subfamily Lycorininae Cushman & Rohwer, 1920 is a small group with a single genus, Lycorina. This subfamily can be easily distinguished from other ichneumonids subfamilies by the following characters: impreesed triangular pattern on the metasomal tergites, tergite 2-4 with convex central triangular area; hypopygium of female large and triangular in lateral view, centrally membranous and with small median apical notch. Genus Lycorina is a cosmopolitan genus with 30 described species (Yu et al., 2012). Also, from this genus have been reported five species in Eastern Palaearctic region, six species from China, two species from Japan and one species for the first time from Korea. The focal host range appears to be weakly concealed larva of micro-lepidopteran species. Some species have been reared from Crambidae in leaf-rolls or webs (Doerksen & Neunzig, 1974; Finlayson, 1976) and Tortricidae (Chao, 1980; Shaw, 2004). In this study we report one newly recorded to Korea species, Lycorina triangulifera Holmgren, 1859 and provide the diagnosis and photographs.