Bo-Sun Park

Study on the Community Structure of Benthic Macro-Invertebrates in Jangsu-cheon, an Urban Restoration Stream of Incheon City

The purpose of this study is to investigate the effects of the natural river conservation work and to find remedies for them, targeting Jangsu-cheon with high frequency of use by citizens among the rivers in Incheon Metroplitan City, Korea; for this, this study conducted investigations and analyses of Jangsu-cheon completed in December, 2008. As a result of investigating 3 spots for the water system of Jangsu-cheon over a total of 3 years (2009, 2010, 2014), it was found that benthic macro-invertebrates of a total of 3 phyla, 5 classes, 11 orders, 26 families, 56 species, and 980 specimens were distributed there. When they were analyzed by year, 18 families and 30 species in 2009, right after the natural river conservation work, and 22 families and 37 species in 2010, 2 years after the work, were found, with 7 species increasing in number; after that, as a result of the investigation in 2014, 22 families and 38 species were found, which tells the river has entered the stabilization stage since the recovery in 2010.Therefore, this study could identify: the water environment of the river was improved due to the natural river conservation work for Jangsu-cheon; in addition, Jangsu-cheon showed good ecological environment due to the continuous maintenance of the good wetlands in Incheon Grand Park in the upper area of the river; and the natural river conservation work of Jangsu-cheon created positive effects.

Taxonomic study of the genus Assara Walker (Lepidoptera, Pyralidae, Phycitinae) in NE China, with description of a new species.

Four species of the genus Assara Walker, 1863 are revised from NE China. Among them, Assara yanbianensis Bae & Qi sp. n. is described as new to science and A. terebrella (Zincken, 1818) is newly recorded from China. A key to the NE Chinese species of the genus Assara with illustrations of adults and genitalia are presented.

Study on Community Structure of Benthic Macro-Invertebrates Inhabiting in an Urban Restoration Stream, Gongchon-cheon, in Incheon City

The subject of this study is the Gongchon-cheon which is one of the largest streams in Incheon and is closely related to lives of citizen. Comparative analysis is made on the changes of the environment and the ecological condition of Gongchon-cheon after the stream naturalization construction which is completed in July 2009. From the results of the survey, 32 species in 2004, 22 species in 2009 and 46 species in 2010 have been recorded. The number of the species decreased from 2004 to 2009 due to the disturbance of the river environment, and it increased in a short time from 2009 to 2010 because of the recovery of the environment. It demonstrates the stream naturalization construction providing enough environments (dikes and rapids) for the benthic macro invertebrates. The result of the present study is similar with the river`s biology index, ESB index, and KSI index, and also it is similar with the pattern of the appearance, which illustrates that the species decreased during the naturalization construction, and increased after the stabilization since the finish of the naturalization construction, and it has been confirmed that the naturalization construction provides the better environment for the inhabitation of organisms.

Taxonomic Review on the Genus Sciota (Lepidoptera, Pyralidae, Phycitinae) in Northeast China

Three species of the genus Sciota Hulst, 1888 are recognized from Northeast China: Sciota cynicella (Christoph, 1881), Sciota fumella (Eversmann, 1844), and Sciota adelphella (Fischer von Roslerstamm, 1836), of which Sciota cynicella (Christoph, 1881) is reported for the first time from China. This species can be distinguished from congeners by the gray color of basal area, the straight antemedial line and the distinct postmedial line on the forewing; by the stout aedeagus in male genitalia. In this study, a key to Northeastern Chinese species of genus Sciota is presented, and the illustrations of adults and genitalia are also provided.

Five new Recorded Species of the Tribe Archipini (Lepidoptera: Tortricidae) from Vietnam

This study was carried out to inventory the species of the tribe Archipini from Vietnam. Five species are recorded for the first time: Adoxophyes tetraphracta Meyrick, Meridemis bathymorpha Diakonoff, Pandemis corylana Fabricius, Terthreutis bulligera Meyrick, and Ulodemis hyalura Diakonoff. All of species are provided with diagnosis and figures of the adult and genitalia.

Taxonomic review of genus Evergestis Hübner (Lepidoptera: Crambidae) from Northeast China.

Four species of the genus Evergestis Hübner, 1816–1826 are recognized from NE China, of which E. pallidata (Hufnagel 1767) is reported for the first time from China. The adults and genitalia of the species are briefly redescribed and illustrated with their distributional ranges, host plants and biology. A key to species of the genus based on the external characters is provided.