This study presents the results of mosquito surveillance monitoring in Chungnam Province from 2017 to 2020. A total of 130,750 mosquitoes were collected, and we analyze variations of mosquito populations with emphasis on the most abundant species. We also provide the field survey data based on the different habitats in Chungnam Province.

In the study, a variation of Haemaphysalis longicornis, a major vector of fever-causing conditions, was statistically analyzed to identify the spatial and climatic factors affecting the time-dependent variations of its population. The survey occurred in different habitats in South Korea. In addition, we developed a predictive model by using a probability function to find the peak occurrence time annually. As a result, the numbers of adults and nymphs were found to be related to temperature and relative humidity and their population peaked at the end of May in all habitats except deciduous forests. This study is expected to provide information on habitat types, times, and climate patterns that require attention to help control H. longicornis populations.

목적 : 멀티포컬 콘택트렌즈(MFCL) 착용 시 시각 피질에서 발생하는 ERP 변화를 확인하기 위하여 단초점 콘택트렌즈 착용 시 나타나는 ERP 변화와 비교하였다. 방법 : 안질환이 없는 근시안 20명 (여성 15명, 남성 5명, 평균 연령 24.00±0.51세)을 대상으로 하였으며, 단안 시력 0.00 logMAR 이하, -0.75 D 이상의 난시안, 0.50 D 이상의 부등시안, 조절력이 비정상적이거나 시력교정술을 받은 경우는 제외하였다. 단초점 콘택트렌즈(SVCL)와 낮은 가입도 중심부-근용 멀티포컬 콘택트렌즈를착용시킨 후 NeuroScan SynAmps 2 프로그램을 이용하여 시피질에서 일어나는 시각반응을 ERP로 기록하였다. P100 분석은 O1, O2 채널을 사용하고, N170 분석은 P7, PO7, P8 및 PO8 채널을 사용하였다. MFCL 착용 후 나타난 P100과 N170의 활성도(amplitude)와 반응시간(latency)은 SVCL 착용 후 나타난 값과 비교하였다. 결과 : MFCL 착용 시 단안과 양안에서의 P100 활성도는 SVCL 착용 시와 차이가 없었으나 P100 반응시간은 우세안에서 SVCL 착용 상태보다 길었다(p=0.036). MFCL 착용 시 우세안의 N170 활성도는 비우세안보다 작았고(p=0.001), 비우세안은 단초점 콘택트렌즈 착용 시보다 작았다(p=0.008). 그러나 양안에서 N170 활성도와 반응시간은 SVCL 착용 상태와 차이를 보이지 않았다(p=0.200), (p=0.249). 결론 : MFCL 착용 후 초기시각반응과 인식과정은 우세안에서는 저하되었지만, 양안 상태에서는 SVCL 착용시와 차이가 없었다. 따라서 MFCL 착용 후 나타나는 망막에 맺힌 흐린 상은 양안 융합과정에서 극복되어 시기능에 영향을 주지 않는 것으로 사료된다.

The leafhopper family Cicadellidae (Hemiptera: Auchenorrhyncha) is plant feeders, with mouthparts adapted for sucking. Almost of the them cause injuries of destruction to plants, including fruit trees and grain crops, and can be vectors of plant diseases. Therefor, Cicadellidae is one of the most important pests in the world. However, their identifications are very difficult because of small size and morphological similarities, and their exact biological information such as host plants, life cycle and distribution are not clear for most species. So, we provide and integrated biological database that present accurate diagnostic methods and ecological infromation.

The leafhopper subfamily, Typhlocybinae (Hemiptera: Auchenorrhyncha: Cicadellidae), caused direct damage by sap-sucking or indirect damage by transmission of viruses or diseases to the host plants, so Typhlocybinae is one of the most important insect pests in agriculture, urban ecology, forest, etc. in the world. However, their identifications are very difficult due to small size and morphological similarities, and their exact biological information such as host plants and life cycle are not reported yet for most species. So, we construct an integrated biological database that presents accurate diagnostic methods (illustrated key characters, DNA barcoding data), patterns and seasons of occurrences, and some ecological photographs such as dorsal habitus of specimens and plant damages

Leafhopper subfamily, Typhlocybinae (Hemiptera: Auchenorrhyncha: Cicadellidae), caused direct damage by sap-sucking or indirect damage by transmission of viruses or diseases on the host plants, so typhlocybinae is one of the important pest groups in the world. Typhlocybinae distribute worldwide and a total of 471 genera and more than 4,300 species have been described. so far, 38 genera and 102 species were recorded in the Korean Peninsula. In this talk, we provide several taxonomic studies for the Korean typhlocybene fauna based on the genus-level reviews of the subfamily from the Korean Peninsula.

Genus Tautoneura Anufriev, 1969 (Hemiptera: Auchenorrhyncha: Cicadellidae: Typlocybinae) were recorded 59 species in the world. Among them, only 1 species: Tautoneura mori has been recorded so far in the Korean Peninsula. Tautoneura mori is known as a major pest of Mulberry in China and Japan, and we also confirmed that it appears on Mulberry in Korea. In this talk, we confirmed two new records: Tautoneura japonica, Tautoneura tricolor to the Korean typhlocybinae fauna, and we also discovered one new species to science. Additionally, we provide biological information such as host plants and distributional records, with a key to the Korean Tautoneura species. We also discuss potential status of each species as an agricultural pest concerning its biological traits.

The genus Arboridia Zachvatkin belongs to the tribe Erythroneurini of the subfamily Typhlocybinae (Hemiptera: Auchenorrhyncha: Cicadellidae). A total of 69 valid species have been described in the Palaearctic and Oriental region. So far, seven species of this genus have been recorded in the Korean Peninsula. In this study, we present two new species, Arboridia sp. nov. 1, Arboridia sp. nov. 2, and provide a key to the Arboridia species in the Korean Peninsula with biological information such as host plants and distributions.

Grapevines are cultivated globally, and are also damaged by a large number of insect pests especially including leafhoppers. Leafhoppers are one of the important insect pests on various crops including grape. Among them, the genus Arboridia Zachvatkin (Hemiptera: Auchenorrhyncha: Cicadellidae: Typhlocybinae) was known as insect pests against grape farming. Eighty species were described in the genus in the world, and eight species were recorded in the Korean Peninsula so far, which are: Arboridia apicalis, A. kakogawana, A. koreacola, A. maculifrons, A. nigrigena, A. okamotonis, A. silvarum, A. suzukii. Among them, A. apicalis, A. kakogawana, A. maculifrons, A. nigrigena, A. suzukii have been known as important insect pests on grapes. In this talk, we propose a new species from the Korean Peninsula, and confirmed two new records: A. agrillacea and A. lunula. Additionally we present differential diagnoses of the Arboridia species damaging on grapevines for the field of applied biology.