Nialoe Tanaka, 1958 is a subgenus of the ground beetle genus Pterostichus (Coleoptera: Carabidae), endemic to East Asia. In a wide sense of Nialoe, it consists of more than 200 species, which has reduced hindwing and possibly diversified by geographical isolation due to poor dispersal ability. To understand this vast group, phylogenetic studies have been conducted, showing that Nialoe s. lat. comprises of five subgenera: Nialoe s. str., Sphodroferonia, Koreonialoe, and two unnamed subgenera. However, there is little knowledge regarding their origin and dispersal. In this study, we examine phylogenetic relationships among the five subgenera of Nialoe s. lat. based on 28S rRNA, wingless, COI, and 16S rRNA. The molecular clock and S-DIVA analyses are devised to investigate the biogeographical history of the group in East Asia. This study may give insight into the biogeographical dispersal and diversification of East Asian carabids.

Psyllids have shifted lately into general awareness as vectors of pathogens causing serious plant diseases, as pests in agriculture and forestry or as potential control agents of alien invasive weeds. These small insects are plant sap feeders which are generally very host specific. In addition, related psyllid species tend to develop on related plant species. This makes them an ideal group for studies on insect–plant cospeciation. A sound taxonomic and phylogenetic base is a prerequisite for successful pest control and meaningful research on insect–plant interactions. Currently almost 4000 named species of Psylloidea exist worldwide of which half was described in the last three decades. Despite this tremendous progress there are at least another 4000 species which remain undescribed particularly in Africa, South America and tropical Asia. Since White and Hodkinson’s seminal paper in 1985 a series of studies tested their classification with additional taxa using morphological and molecular techniques. In 2012 Burckhardt and Ouvrard proposed a new classification. Five of their families (Calophyidae, Carsidaridae, Homotomidae, Phacopteronidae and Triozidae) are identical with or similar to those of White and Hodkinson but three differ fundamentally from previous classifications (Aphalaridae, Liviidae and Psyllidae). Many of the recognised families and subfamilies are restricted more or less exclusively to a single plant taxon, e.g. Calophyidae, Phacopteronidae and Rhinocolinae to Sapindales, Carsidaridae to Malvaceae, Homotomidae to Moraceae, Spondyliaspidinae to Myrtaceae, and many Psyllidae to Fabaceae. The 1000 described species of Triozidae, in contrast, have colonised many families of dicots and, a few, even monocots and conifers. Several analyses suggest that cospeciation may be less important than geographical vicariance to explain the observed species richness in psyllids, and that shifts to new host taxa are frequent.

한국산 말매미충류를 분류한 결과, 모두 5족 14속 41종으로 밝혀졌다. 그 중에서 2신속 Diodontophorus gen. nov. 및 Koreotettix gen. nov. 그리고 Koreotettix parvus gen. et sp. nov. Pagaronia chejuensis sp. nov. P. naejangsana sp. nov. P. pallida sp. nov. P. similis sp. nov. P. taeamsana sp. nov. P. umbratica sp. nov. P. bifurcata sp. nov. P. diversa sp. nov. P. elegans sp. nov., and P. maculipennis sp. nov. 등 11신종을 새로 추가하였다. 또한 Bathysmatophorus koreanus와 B. japonicus는 신속 Diodontophorus gen. nov. 로 변경 처리되었으며, 지금까지 오동정되어 왔던 Bathysmatophorus schabliovskii는 북한에 실제로 분포하고 있음이 확인되었다. 분류군마다 검색표를 작성하였고, 각종의 분포 및 기주식물을 정리하였으며, 생물지리학적 특성을 분석하였다.