본 연구를 통해 국내에 분포하는 중기문응애류 중 파리응애과의 Holostaspella crenulata Krantz, 1967 (톱니무늬파리응애, 신칭) 와 화살응애 과의 Lasioseius floridensis Berlese, 1916 (가슴선화살응애, 신칭) 를 처음으로 확인하고, 각 종에 대한 분류학적 진단과 분포정보, 성충의 현미경사 진과 도판을 제시하였다.

이리응애과의 많은 종들은 잎응애, 총채벌레 및 가루이와 같은 미소 해충의 생물학적 방제원으로 이용가능성이 높다. 실제로 칠레이리응애와 같은 포식활동이 왕성한 일부 종은 현재 농업에서 전세계적으로 많이 이용되고 있다. 특정 지역이나 생태계 또는 작물에 서식하는 이리응애과의 다양성 조사는 포식성 이리응애의 활용을 위한 좋은 기초자료가 된다. 그러나 국내에서 이와 관련된 자료는 90년대에 1건에 그쳐 자생 이리응애의 활용을 위한 후속 연구를 도모하기에 턱없이 부족한 실정이다. 본 연구에서는 중부지역의 6개도 17개 시군에서 2018년 7월부터 10월까지 자생 이리응애의 발생상황을 조사하였다. 그 결과 총 29과 57종의 식물종에 서식하는 20종의 이리응애를 확인하였다. 다양한 이리응애가 서식하는 식물종은 벚나무로 긴꼬리이리응애를 포함한 6종이 출현하였다. 서식 식물종이 가장 많은 이리응애는 긴꼬리이리응애로 17종이 식물에서 출현했고, 두 번째는 긴털이리응애로 16종의 식물에서 발견되었다.

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.

주로 열대와 아열대 지역에 분포하는 순모이리응애속(Euseius Wainstein) 응애류는 이리응애과(Phytoseiidae), 순이리응애아과(Amblyseiinae)에 속하며, 전세계적으로 193종이 보고되었다(Liao et al, 2017). 국내에는 순이리응애(E. finlandicus) 1종만이 기록되어 있다(Ryu, 2012). 잎응애류의 자생 천적자원 탐색조사 도중 본 속의 울릉도산 한국미기록종인 Euseius australis (Wu & Li, 1983)를 새롭게 확인하여 보고한다.

중기문응애목 떠돌이응애과는 토양에 서식하는 포식성 응애로, 토양해충의 생물적 방제원으로 이용가치가 있다. 우리나라의 떠돌이응애과는 10속, 24종이 보고 되었다. 본 연구는 제주도 한라산천연보호구역 물장오리오름에서 토양응애 생물다양성 연구 중 이끼에서 우리나라 미기록종 Asca bicornis Canestrini & Fanzago, 1877을 발견하여 보고하는 바이다. 등판과 배판의 묘사를 통해서 형태적인 특징을 자세히 제공하였다. 근연 종인 A. aphidioides는 등판 양쪽 말단에 돌출된 혹에서 각 1개의 센털이 있으나, A. bicornis는 2개가 나 있다.

Hallasan is an elliptical volcano on Jeju Island and is the highest mountain in South Korea. A survey was carriedout to investigate soil Gamasina mite composition in the Hallasan National Park during 2016-17. Soil samples were collectedvarious microhabitats from Baekrokdam and Muljangori. We found these eight species; Euparholaspulus primori, Gamasholaspisbrowningi, G. communis, Parholaspulus bregetovae, P. hiasmaticus, P. maturovae, P. orientalis and P. paradichaetes fromsoil. Among these species, Parholaspulus bregetovae, P. hiasmaticus, P. maturovae, P. orientalis and P. paradichaeteswere first records from Baekrokdam and Muljangori, Halla National Park, South Korea.

The acaricidal activity of Asarum heterotropoides root-derived principles, methyleugenol, safrole, 3-carene, α-asarone, pentadecane and A. heterotropoides root steam distillate constituents was tested against poultry red mites Dermanyssus gallinae (De Geer). All active principles were identified by spectroscopic analysis. Results were compared with those of two conventional acaricides, benzyl benzoate and N,N-diethyl-3-methylbenzamide (DEET). Methyleugenol (24 h LC50 = 0.57 μg/cm2) and safrole (24 h LC50 = 8.54 μg/cm2) were the most toxic compounds toward D. gallinae, followed by 3,4,5-trimethoxytoluene, 3,5-dimethoxytoluene, estragole, α-terpineol, verbenone, eucarvone, linalool, and terpinen-4-ol (LC50 = 15.65–27.88 μg/cm2). Methyleugenol was 16.7× and 11.0× more toxic than benzyl benzoate (LC50 = 9.52 μg/cm2) and DEET (LC50 = 6.28 μg/cm2), respectively; safrole was 1.1× and 0.73× more toxic. Asarum heterotropoides root-derived materials, particularly methyleugenol and safrole, merit further study as potential acaricides. Global efforts to reduce the level of highly toxic synthetic acaricides in indoor environments justify further studies on A. heterotropoides root extract and steam distillate preparations containing the active constituents described as potential contact-action fumigants for the control of mites.

A survey was carried out to investigate Gamasina mite composition in the Gyeongbuk and Gangwon, during 2009-2014. Samples were collected from wide range of habitats (i.e. forest, riparian grassland, agriculture). 3 species namely Antennoseius avius (Ascidae), Hypoaspis sardous (Laelapidae) and Stylochirus caucasicus (Ologamasidae) are records as new records compared to already existed database of mite in Korea. Description of three new records species, identification keys (female adult) each species and figures of external morphology are given.

The Mesostigmata is an order of Subclass Acari either parasiting to diverse invertebrates or free-living predatory in terrestrial ecosystem. Phoresy is one of the unique behaviors of wingless arthropod dispersal by attaching winged arthropods. We collected mites attached on the dorsal part of abdomen adult sciarid fly, from mushroom culture. The mites were identified as Arctoseius cetratus Sellnick, 1940 in the family of Ascidae. Arctoseius cetratus has short J2, Z1, Z2, and S1, S2 setae, not reaching the bases of following setae. Posterior half of dorsal shield with longitudinal garland of puncta between J and Z setae, peritremes extending anteriorly to midlevel of coxaⅡ. The genus Arctoseius and species Arctoseius cetratus are the first record in Korea. We provided the detail description of the species including the identification key in the family with some ecological notes.

Phoretic mites were collected from Copris ochus and C. tripartitus (Coleoptera: Scarabaeidae). These beetles were collected from Holoce Ecosystem Conservation Research Institution, Gangwon-do. Five unrecorded species of Eviphis hastatellus Berlese, 1910 (Eviphididae), Holostaspella scatophila Takaku, 1994 (Macrochelidae), Macrocheles japonicus Evans & Hyatt, 1963 (Macrochelidae), Pachylaelaps siculus Berlese, 1921 (Pachylaelapidae) and Parasitus consanguineus Oudemans & Voigts, 1904 (Parasitidae) were recorded from Korea for the first time. However, Parasitus consanguineus Oudemans & Voigts (Parasitidae) was already recorded by Oudemans & Voigts in 1904 but since then no one has recorded. We have rerecorded this species in Korea.

Mesostigmata is an important predaceous mite groups in various ecosystems and considered as an Order of Subclass Acari, Superorder Parasitiformes. Among the Suborders, Sejida, Trigynaspida, Monogynaspida, Heterozerconina and Gamasina, we list 35 families and 309 species from Korea. Some of the species were newly added to the Korean fauna. It includes mites from soil, litter, compost, snake, birds and some animal habitats, but the majority is from soil. Some of them are widely used biocontrol agents of spider mites, insects and nematodes.

Predatory gamasid mite (Acari: Mesostigmata) is living in soil and litter. They feed on nematode, collembolan and insect larvae. This research compared diversity of gamasid mite in organic and conventional apple orchards. Soil samples were collected in spring season of 2011 to 2012 (5 for each orchard system). Fifteen families, 54 species and 15 families, 50 species were collected from organic and conventional orchards, respectively. In total 18 families and 77 species of gamasid mite were collected. Shannon Diversity was average 2.5 in organic orchard and 2.3 in conventional orchard. Major dominant species was Eugamasus fujisanus (Parasitidae) in organic orchard and Uropoda hokkaidoensis (Uropodidae) in conventional orchard. Parasitidae and Uropodidae were preferred in soil surface, large soil pores and decaying organic material litter. Future, more research on composition of gamasid mite, biotic and abiotic factors in orchard system are demanded.

Gamasid mites are top predators and occupy a central position of the soil food web in the forest ecosystem. This study investigated the soil dwelling gamasid mite community during 8-9 years after the massive mountain fire which occurred in April 2000. Total of 11 families, 44 species and 943 individuals were found. Abundance and species richness of soil gamasid mites was high in less fire-impacted sites (C2 and T3) including unburned control site (Con) than in severely impacted sites (T1 and T2). Genus Holaspina comprised 40-84% of the total abundance of gamasid mites indicating the group may play the key role in soil food web. Dominant species of gamasid mite was H. alstoni, H. communis, H. dentaus, H. ochraceus, H. trifucatus of the Genus Holaspina 5 species in all sites. Some detail biological information was pursued in this group. After 8-9 years from the massive fire, it was noted that the soil gamasid mite communities were recovered from the less severely burned sites but not from the severely burned sites.

본 연구에서는 한국산 이리응애과 - 2아과, 3속 5아속, 27종 - 을 정리하여, 종의 기재와 검색표를 작성하였다. 이 중 신종, 밤이리응애(신칭), Phytoseius crenatus sp. nov.를 기재하며, 알락이리응애(신칭), Amblyseius makuwa Ehara는 한국에서 처음으로 보고한다.