It was first recorded that Elasmus japonicus Ashmead had occurred from three Polistes nests in Busan city, Wanju-gun, and Pyeongchang-gun of South Korea. The 2 females and 14 males were collected from the nest of Polistes rothneyi koreanus in Busan city (N35°17′57.71″ E129°06′33.24″), 12 females and 2 males from P. djakonovi in Wanju-gun (N35°47′35.05″ E127°15′30.48″), 18 females and 3 males from P. snelleni in Pyeongchang-gun (N37°39′7.84″ E128°35′15.81″). P. rothneyi koreanus and P. djakonovi were first recorded as new hosts. To date, two Elasmus species, E. nephantidis and E. viridiceps, have been reported from South Korea. In this study, we provide diagnosis, description, and photos of female and photos of male of E. japonicus.

점박이응애 밀도가 높은 돌콩에서 응애 포식천적인 Feltiella acarisuga Vallot(신칭, 응애 혹파리)가 국내에서 처음으로 발견되었다. 이 종의 형태적 특징 및 간략한 생태정보를 보고한다.

북미원산인 아까시나무 혹파리 해충중 하나인 아까시잎혹파리(신칭 : Obolodiplosis robiniae (Haldeman, 1987))를 우리나라 중부 지방에 분포함을 확인하여, 국내에서 최초로 기록하며 암컷과 수컷 성충의 형태적 특징과 아까시나무의 피해증상을 소개한다

느타리버섯 재비시 발생하여 피해를 일으키는 버섯해충류에 대한 조사 중 국내미기록종인 Megaselia tamiladuensis Disney(신칭: 버섯벼룩파리)가 동정되었다. 본 종의 분류학적 위치 및 형태적 특징을 기술하였다.

느타리버섯 재배시 발생하여 피해를 일으키는 버섯해충류에 대한 조사중 Lycoriella mali(신칭: 긴수염버섯파리)가 동정되었다. 이 종에 대한 형태적 특징에 대하여 보고하는 바이다.

An exotic parasitic wasp Anisopteromalus apiovorus of Pteromalidae was newly recorded in Korea. Specimens of this species have been collected in Gimhae of Korea since 2012. External morphology of this species was described in detail and diagnostic differences of this species from the related species and the host insect were also given. The funicle segments of female antennae are 1.2 to 1.5 times longer than those of Anisopteromalus calandrae, an sister species. Body color is gold-glossy black and with dense creamy-white hairs on the surface. This exotic species has been originated from the African continent including Democratic Republic of Congo and Cote d'Ivoire, and then intruded into other countries, for instance, Korea. This is the first distribution record of this species except the country of origin after original description as a new species. Although little is known about the life history or ecology of this species, we found that a new host of this small parasitic wasp is Lasioderma serricorne of coleoptera through present study. And this species possibly be a new agent of biological control for economic pests. It was presumed that the invasion of Anisopteromalus apiovorus into Korea was prior to November of 2012.

Corythucha marmorata Uhler was newly recorded in Korea as a invasive species at Pohang-si, Gyeongsangbuk-do, Korea in 2011 and at Changwon-si, Gyeongsangnam-do, Korea in 2012. Adults of this species show reticular forewings with a lot of transparent membranes and also show pterigoid process of paranotum with strong processes. This invasive species was originated from North America, and then intruded into Europe and Japan. This species is presumed became an epidemic horticultural pest at present and it is injuring almost of Asteraceae leaves. It was presumed that the invasion of Corythucha marmorata into Korea was prior to September of 2011.

Leptoglossus occidentalis Heidemann, 1910 was newly recorded in Korea as a invasive species at Gyeongsangnam-do, Korea in 2010 and 2011. Leptoglossus Guérin-Méneville, 1831 is also newly recorded Coreid genus in Korea. The diagnostic shape is expanded leaf-like hind tibiae. The origin of this species is North America and it has been rapidly propagated around the world as a pest. This bug recognized as a pest on almost of Pinaceae plants and they suck on developing cones, so the monitoring on the present invasion of this species in Korea is urgent. It was presumed that the invasion of Leptoglossus occidentalis into Korea was before 2010 with present study.