The Silphidae Latreille, 1806 was reviewed as 26 species of 9 genera from Korea. In this study, we report a new subspecies, Silpha perforata jejuensis ssp. nov, from Is. Jeju and taxonomic revision of the family Silphidae in Korean Peninsula. We provide descriptions, Photograph of morphological and genital structures and a key of Korean species.

하늘소과, 넓적하늘소아과의 무늬넓적하늘소족(Atimiini LeConte)에 속하는 무늬넓적하늘소(Atimia nadezhdae Tsherepanov)의 한국 분포를 최초로 보고한다. 성충의 외부형질, 수컷의 생식기 형질, 생태 정보를 함께 제공한다.

Tinocallis Matsumura 속은 전세계 19종이 포함되는 비교적 큰 속이다. 본 연구에서는 최근 라오스에서 바나바 (부채꽃과: 배롱나무속)에 심각한 피해를 주는 알락진딧물 일종, Tinocallis himalayensis Ghosh, Ghosh & Raychaudhuri, 1971를 처음으로 발견하여 보고한다. 유시형 처 녀생식세대의 암컷 형태, 생태 및 피해 사진을 함께 제시하였다.

In this study, a newly developed agitator with hydrofoil impeller applied to actual biological process in advanced wastewater treatment plant was evaluated. Several series of experiments were conducted in two different wastewater treatment plants where actual problems have been occurred such as the production of scums and sludge settling. For more effective evaluation, computational fluid dynamics (CFD) and measurements of MLSS (Mixed Liquor Suspended Solids) and DO (Dissolved Oxygen) were used with other measuring equipments. After the installation of one unit of vertical hydrofoil agitator in plant A, scum and sludge settling problems were solved and more than seventy percent of operational energy was saved. In case of plant B, there were three cells of each anoxic and anaerobic tanks, and each cell had one unit of submersible horizontal agitator. After the integration of three cells to one cell in each tank, and installation of one vertical hydrofoil agitator per tank, all the problems caused by improper mixing were solved and more than eighty percent of operational energy was found to be saved. Simple change of agitator applied to biological process in wastewater treatment plant was proved to be essential to eliminate scum and sludge settling problems and to save input energy.

The soybean aphid, Aphis glycines Matsumura, was introduced about a decade ago from Asia into North America where it has become a serious pest of soybeans. This invasive pest has rapidly spread throughout the midwestern United States and southern Canada since 2000. We examined 689 individuals obtained from 23 different collections in USA, Korea, China and Japan for testing eight microsatellite loci. To estimate the relative likelihood of alternative introduction scenarios of the soybean aphid, an approximate Bayesian computation (ABC) was performed for microsatellite data as implemented in DIYABC. The ABC analysis tested for three scenarios (B1, B2, and B3) hypothesizing an introduction from one of the Asian countries. In this analysis, scenario B1 obtained the highest posterior probability ranging from 0.90 to 0.91 with a 95% CI of 0.81-0.99 and 0.88-0.94, which assumes an introduction from Korea. The ABC analysis revealed that one hypothetical scenario, which assumes an introduction of the soybean aphid into USA from Korea, was very robustly suggested than the other two scenarios (from China or Japan).

The genus Macrolygus Yasunaga, 1992 is the genus includes two Asian species. This genus described by Yasunaga at 1992, with a single type species, M. viridulus. Thereafter, Zheng and Lu (2002) reported the second species, M. torreyae from China. In this poster, We report M. viridulus for the first time from Korea.

Tribe Saissetiini Hodgson, 1994 are reviewed as 8 species of 3 genera from Korea, including Parthenolecanium fletcheri (Cockerell, 1893) and Saissetia miranda (Cockerell & Parrott, 1899) new to the Korean peninsula. Diagnosis and descriptions for Korean species are redescribed with illustrations, photographs and key to species.

Pear psyllids are of major economic concern in Korea. In the literature five nominal species, including two West Palaearctic taxa, are reported from the Peninsula. The Korean pear psyllids, member of the large genus Cacopsylla, are reviewed here to comprise four species. Previous Korean records of C. pyrisuga (Foerster) are misidentification of C. burckhardti Luo et al. whereas those of C. pyricola (Foerster) concern C. maculatili Li and probably C. jukyungi (Kwon) stat. rev., comb. nov. (from Psylla). The latter, that is commonly found in pear orchards, occurs also in Japan where it was misidentified as C. chinensis. The differences between C. jukyungi and C. cinereosignata syn. nov. reflect seasonal dimorphism. For this reason, we synonymise the two. C. maculatili and C. qiuzili Li are shown to represent the winter and the summer form of the same species and are, therefore, synonymised as C. maculatili = C. qiuzili syn. nov. C. jukyungi and C. sandolbaea (Park & Lee) are redescribed, a key to the adult of the four species and short biological notes are provided.

Halyomorpha halys(Stål, 1855) (Hemiptera: Pentatomidae), also known as Brown Marmorated Stink Bug (BMSB), is a recent invasive pest in America and Europe. It originated from East Asia such as Korea, Japan, China, and Taiwan. Genus Trissolcus (Hymenoptera: Scelionidae) which is regarded as important species for biological control of H. halys, was described 6 species previously in Korea. But biology and taxonomic character of this genus is poorly known in Korea. Herein, we report two species from Korea, T. japonicus Ashmead, 1904 and T. plautiae Watanabe, 1954. We have investigated the morphological characters and COI sequence, and conducted an experiment about parasitic preference on BMSB's egg. Morphological key and picture of two species, and result of sequence investigation and experiment will be presented.

Longhorn beetles (Coleoptera: Cucujiformia: Chrysomeloidea: Cerambycidae) are the most well known coleopteran family by their species-diversity, ecological importance and morphological attraction. Because of their popularity, the immature stages of longhorn beetle are relatively well-studied. However, hardly any study on immature stage of longhorn beetle has been done in Korea until now. Here we provide first intensive research on immature stage of Korean longhorn beetle. Especially, two basic methods used in immature stage research; classical larva-adult matching by rearing and molecular identification by using DNA barcoding will be presented. This study will provide a robust foundation for further study of immature stage identification, DNA barcoding and phylogeny of cerambycidae.

A total of 13 species of Eucnemidae are recognized from Korea, including 11 species new to Korea. Descriptions, illustrations and keys to each species are provided.

The soft scales (Hemiptera: Coccidae) are plant-sucking insects, some of which are considered as serious agricultural pests. Here, we performed phylogenetic analysis of Coccidae, based on molecular fragments 1813bp containing mitochondrial DNA (COI), nuclear ribosomal RNA genes (18S and 28S), and elongation factor 1α (EF1-α). Data sets of 64 taxa were analyzed using maximum likelihood (ML) and Bayesian inference (BI). Our molecular analyses represent: 1) Monophyletic clade of Ceroplastinae is nested within the major clade of Coccinae; 2) Four tribes of Coccinae are paraphyletic, especially Megapulvinaria and Paralecanium not clustered within the major clade of Coccinae; 3) Didesmococcus is separated from the clade of Eulecaniinae; 4) Filippiinae and Cardiococcinae are paraphyletic with respect to some of Coccinae and Eulecaniinae.

Generally, in aphid groups, taxonomically deficient characters and high level of morphological plasticity induced by environmental factors make difficulties for species identification. To solve these problems, DNA barcoding has been widely used for rapid and reliable species identification in aphids. The subfamily Calaphidinae is the second largest group in the family Aphididae with about 400 species belong to 59 genera. But so far, no trial of DNA barcoding has been conducted for the subfamily Calaphidinae. In this study, a total of 446 Cytochrome oxidase I (COI) sequences of 76 morphospecies collected in Korea and other countries were analyzed to detect cryptic diversity. In addition, 551 sequences of 74 species from the Genbank and BOLD system were compared with our new dataset. The final dataset consisted of 998 sequences of 115 species. As a results, we propose 12 cryptic species with discussion on morphological and ecological comparisons. Our results suggest that DNA barcoding is effective for precise species identification in this group and contributes to reveal hidden diversity.

For reviewing Korean species of Denticollinae and reconstructing phylogenetic relationships between subfamilies in Elateridae, three kinds of studies were conducted: 1) taxonomic review based on morphology; 2) DNA barcode for Denticollinae; 3) molecular phylogenetic study of Elateridae using 12 genetic markers. In taxonomic study, a total of 54 species were reviewed including 13 new species and then unrecorded species. In DNA barcoding, six cryptic and/or pseudocryptic species were confirmed by their sympatric or allopatric distribution. We propose a conservative threshold of 3.6% for convenient molecular operational taxonomic unit identification in Denticollinae. From this study, we confirmed that COI sequence is useful for reassessing species diversity for polymorphic and polytypic species occurring in sympatric and allopatric distributions. In molecular phylogenetic study, the phylogenetic inference constructed robust phylogeny with almost very strongly supported nodal values(>90%) and showed that Hypnoidinae, Oxynopterinae and Denticollinae are monophyletic; Elaterinae, Hemiopinae and Melanotinae are a monophyletic group; and two tribes in Denticollinae are paraphyletic, it is needed to reclassify their systematic accounts.

The genus of Cinara (Aphididae: Lachninae) live on the roots, trunk, branches, twigs, shoots or foliage of Coniferae and can be easily distinguished in having the very big body, apterae up to 5-6 ㎜ in length and short antennae which are shorter than half the body length. Most of species are monoecious without host alternation and attended by ants. Based on body appearance and COI gene sequence, we report Cinara cuneomaculata (Del Guercio) on Larix kaempferi, C. largirostris Zhang G. & W. Zhang on Pinus thunbergii and P. dnesiflora, C. smaragdina (Pashtshenko) on Abies holophylla and C. piceae on Juniperus rigida, for the first time in Korea.

Subfamily Cryptolechiinae Meyrick 1883 (Depressariidae sensu Heikkila et al., 2014) is reviewed from Korea. The Cryptolechiinae comprising nearly two hundred species worldwide (Wang, 2006), is characterized by forewing broadly lanceolate, the male genitalia without gnathos and female genitalia with well-developed lamella antevaginalis. In the Korea fauna, only four species of two allied genera, Acryptolechia and Cryptolechia, were recognized with two new species. A full bibliography, diagnosis and descriptions for all known species including new species are provided with illustration. Keys to species are also given.

The Tribe Pulvinariini Ashmead, 1891 in Korea is reviewed with a newly reported genus Leptopulvinaria Kanda, 1960. The tribe Pulvinariini is revised as 8 species of 2 genera from Korean peninsula including three new records, Leptopulvinaria kawaii Tanaka & Amano, 2008, Pulvinaria hydrangea Steinweden, 1946 and P. photiniae Kuwana, 1914. In this study, the morphological data about adult females of the species are redescribed from Korean specimens and diagnosis, descriptions and illustrations are also provided.

The genus Mesocallis Matsumura, 1919 is reviewed from the Korean peninsula. Total of five species are recognized by adding two new and one new unrecorded species to current two recorded species. In this study, diagnosis and illustrations for all five species are presented.

Four new species of the genus Cacopsylla Ossiannilsson are described and illustrated based on adults and fifth instar immatures. Cacopsylla spp. nov. are associated with Malus baccata (L.) Borkh. (Rosaceae), Crataegus pinnatifida Bunge (Rosaceae), Aralia elata (Miq.) Seem. (Araliaceae), Pittosporum tobira (Thunb.) W. T. Aiton (Pittosporaceae) respectively. Short biological notes are provided.

The Lamiine subgenus Pseudale Schwarzer, 1925 from Korean peninsula is reviewed. Along with the only recorded species Pterolophia (Pseudale) jiriensis Danilevsky, 1996, we found two additional new species based on morphological and genital difference. Descriptions, photographs of habitus and male genitalia of each species and a key to species of Korea are provided herein. Hence, genital variation of 4 different geographical populations of Pterolophia (Pseudale) jiriensis is discussed.