Apolygus is one of speciose genus in subfamily Mirinae, including more than 80 species worldwide. Most of Apolygus species are phytophagous, and some species are regard as severe crop pest. For that, precise diagnosis and classification for this genus is crucial. In this work, we provide checklist of Korean Apolygus species with a new species and new distributional records. Diagnostic characters of the new species are discussed with the illustrations of adult male, female specimen and genitalic structures. A key to the Korean Apolygus is also presented.

The subfamily Mirinae is the most diverse group in Heteroptera, composed of at least 4,100 described species worldwide. This subfamily is also one of the most important groups in agriculture and in forestry, containing many well-known pests and predators which can be used as a biological control agent. However, the monophyly and generic relationships of each group within this subfamily have been unclear due to the lack of phylogenetic analysis. In this talk, the first comprehensive phylogenetic analyses of this subfamily are presented based on total evidence data. Major questions on the basis of the results are discussed, including the monophyly and relationships among the tribes and main genera, and the evolution of important characters in each group.

The subfamily Mirinae, commonly called plant bug, represents the largest group in Heteroptera, and is also one of the most important groups economically, containing many insect pests as well as predators that can be used as biological control agent in agriculture. However, the monophyletic and phylogenetic relationships of each group within Mirinae are not understood to date, due to a lack of phylogenetic analysis. In this talk, the first comprehensive phylogenetic analyses of the subfamily Mirinae are presented, based on total-evidence data. Major questions raised based on results of this study are discussed: (i) Is each tribe in Mirinae a monophyletic?; (ii) Which tribes or genera are related or not related? (iii) Are these complexes monophyletic?; and (vi) Which characters are nonhomoplacious or homoplacious, and Which are supported in each group?

In this paper, two species of Mirine plant bug, Pinalitopsis rhodopotnia Yasunaga, Schwartz and Cherot, 2002 andYamatolygus pilosus (Yasunaga, 1992) are newly recorded from Korean peninsula. The dorsal habitus and genital structureof each species were provided. Also, figure of allied species, Pinalitus nigriceps Kerzhner, 1988 and P. rubeolus (Kulik,1965) are also documented to aid in the identifications of allied species.

In this paper, two species of Mirine plant bug, Polymerus amurensis Kerzhner, 1988 and Rhabdomiris striatellus Fabricus, 1794 are newly recorded from Korean peninsula. The dorsal habitus and genital structure of each species were provided. Also, figure of related species, P. pekinensis Horvath, 1901 and R. pulcherrimus Lindberg, 1934 were also documented to aid in the identifications of newly recorded species respectively.

Miridae, commonly plant bugs, is the most diverse group in Heteroptera, with more than 11,000 species, and is widely distributed in the world. This group has a great attention by taxonomists, applied entomologists, and evolutionary biologists because of their great morphological diversity, high biodiversity as well as association with host plants. However, there have been a few phylogenetic studies within this family to date. In this talk, we present the first phylogenetic analyses of the largest tribe Mirini in the family Miridae based on nuclear (18S rRNA and 28S rRNA) and mitochondrial (COI and 16S rRNA) sequence data, based on the results, we discuss on the phylogenetic relationships and classifications within the tribe.

The genus Apolygus China (Hemiptera: Heteroptera: Miridae), comprising 64 species in the world, is one of the most diverse groups in the subfamily Mirinae, including well-known insect pests such as A. spinolae and A. lucorum. A total of 56 species are known in the Palaearctic Region up to date, and most of them have been described from China (28 species), Japan (26 species) and Russia (13 species) respectively. In this talk, taxonomic study on the genus Apolygus from the Korean Peninsula is presented with three Apolygus sp. nov. and two newly recorded species. Photographs and illustrations of diagnostic characters and biological information such as host plants and distributions for each species, and a key to the Korean species are provided. Besides, COI barcoding as a diagnostic tool for this group is discussed emphasizing on the low genetic distances between some species.

The mirine plant bug genus Paramiridius, which has been known only by a single Taiwanese species, is reported from Indochinese Laos for the first time and redefined. Two additional species, P. indochinensis and P. laomontanus, are described as new to science. The female genitalic structures are from the first time figured for the genus. A key is provided for all three known Paramiridius species.

The genus Eurystylus Stål (Hemiptera: Heteroptera: Miridae: Mirinae) comprises to date 32 species in the world. This group is generally known as phytophagy, and some of the species are known as major insect pests of crops in various regions such as E. oldi Poppius, 1912, reducing grain mass and quality of sorghum crops by feeding and by ovipositing in Africa. Although these species are easily found and widely distributed, there are few taxonomic studies on this group in detail. In Korea, 2 species are known so far: E. coelestialium (Kirkaldy, 1902), E. luteus Hsiao, 1941. In this talk, the genus Eurystylus from the Korean Peninsula is reviewed for the first time. Biological information such as additional host plants of each species, and morphological characters of Eurystylus sp. nov. with other congeners from Korea are presented. Photographs of the Korean specimens, illustrations of the male genitalia, and diagnoses based on main characters with a key to the Korean species are also provided.

The genus Capsus Fabricius (Hemiptera: Heteroptera: Miridae: Mirinae) from the Korean Peninsula is reviewed. Biological information such as host plants and distributions, and important morphological characters for each species are presented. Photographs of the Korean specimens and illustrations of male genitalia, and diagnoses based on main characters with a key to the Palaearctic species are provided.

A newly recorded species of Philostephanus Distant, 1909 from Korea, P. ulmi (Kerzhner, 1979), is reported with brief taxonomic notes on the Korean Philostephanus species. Morphological keys of the Korean Philostephanus species are provided with the photos of adults and female genitalia for each species.

The genus Philostephanus Distant 1909 belongs to the family Miridae, including 23 species from the eastern Palearctic and the Oriental regions. They are characterized with a relatively large body, brown or fuscous coloration, rather symmetrical parameres of male genitalia, and unique structures of female genitalia. Especially, the respective structures of female genitalia exhibit distinct interspecific variation, which is uncommon in other genera of Miridae, so they are used as key characters in identification and phylogenetic study. Most of members are known to inhabit deciduous trees, and their feeding habits are considered predominantly predaceous although some species are known to use some deciduous trees as their breeding hosts (Yasunaga & Schwartz, 2007). Presently, two species are reported in the Korean fauna (Kwon et al., 2001). During our study, we found one newly recorded Philostephanus species from Korea, P. ulmi (Kerzhner 1979), which is distinguished from other Korean congeners by speckled hemelytra with pale portions. In this study, we provide taxonomic information on P. ulmi and review briefly the Korean Philostephanus species with morphological keys and photos of specimens.

Apolygus xanthomelas Yasunaga and Yasunaga 2000 is reported from Korea for the first time. It is larger than other congeneric species from Korea and has characteristic V-shaped pale parts on hemelytra surrounded by entirely black clavus and posterior triangular marks of corium. It is similar in overall appearance to the Chinese congeneric species, A. ornatus (Zheng and Wang 1983), but it can be distinguished by the vesica, which has a long needle-shaped spicule reaching the apex of median sclerite and ventral sclerite, a slender and weak wing-shaped sclerite and a small sublateral sclerite. This species also distributes in Japan, but the Japanese population is a little different from that of Korea in usually having a pair of dark spots on calli. In this study, the detailed information is given with some photos of the male and female genitalia.