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sangwoo Jung

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Ph.D., Department of Life Sciences, Korea University (2015)
Phone: +82-10-7418-0719
Address: DASARI Research Institute of BioResources, Inc. 44, Dunsandae-ro, 117beon-gil, Seo-gu, Daejeon, South Korea

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Universidad El Bosque

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Schmalhausen Institute of Zoology

Ain Shams University

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State University of Moldova

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Papers by sangwoo Jung

Ancyrona diversa New to Korea (Coleoptera: Cleroidea: Trogossitidae), with a Key to the Palaearctic Species of the Genus

Animal Systematics, Evolution and Diversity, 2020

The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family c... more The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family contains about 50 genera and 600 described species, and the group was recently classified by Kolibáč into three subfamilies, Lophocaterinae, Peltinae and Trogossitinae. Among the lophocaterine genera, a genus Ancyrona Reitter includes 62 species in most parts of the world except the Nearctic region, and is divided into five informal species groups by Kolibáč. In this study, the genus Ancyrona and its a single species, A. diversa (Pic), is newly reported in the Korean fauna. A diagnosis, habitus photographs, and illustrations of female diagnostic characters are provided, with a key to Palaearctic species of the genus Ancyrona.

Review of the water penny beetles (Coleoptera: Psephenidae) of the Korean Peninsula based on morphology and mitochondrial cytochrome c oxidase subunit I gene sequences

Journal of Asia-Pacific Biodiversity, 2020

The water penny beetles (Coleoptera: Psephenidae) of the Korean Peninsula are reviewed based on t... more The water penny beetles (Coleoptera: Psephenidae) of the Korean Peninsula are reviewed based on their external morphology and mitochondrial cytochrome c oxidase subunit I gene sequences. Four subfamilies, four genera, and four species, including a new species described herein, are recognized: Eubrianax ramicornis Kiesenwetter, 1874 (Eubrianacinae), Homoeogenus coreanicum sp. nov. (Eubriinae), Malacopsephenoides japonicus (Masuda, 1935) (Psephenoidinae), and Mataeopsephus japonicus (Matsumura, 1916) (Psepheninae). The psephenid subfamily Eubriinae and the genus Homoeogenus Waterhouse, 1880 are here recorded from the Korean Peninsula for the first time. Analyses of the cytochrome c oxidase subunit I gene sequences of larvae and adults of the four Korean species produced a bootstrap support of 100% for each species. Descriptions, habitat data, habitus photographs, linedrawings of male genitalia, and keys to the adults and larvae of the Korean species of Psephenidae are provided.

Ancyrona diversa New to Korea (Coleoptera: Cleroidea: Trogossitidae), with a Key to the Palaearctic Species of the Genus

Animal Systematics, Evolution and Diversity, 2020

The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family c... more The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family contains about 50 genera and 600 described species, and the group was recently classified by Kolibáč into three subfamilies, Lophocaterinae, Peltinae and Trogossitinae. Among the lophocaterine genera, a genus Ancyrona Reitter includes 62 species in most parts of the world except the Nearctic region, and is divided into five informal species groups by Kolibáč. In this study, the genus Ancyrona and its a single species, A. diversa (Pic), is newly reported in the Korean fauna. A diagnosis, habitus photographs, and illustrations of female diagnostic characters are provided, with a key to Palaearctic species of the genus Ancyrona.

First record of the genus Synchita Hellwig, 1792 (Coleoptera: Zopheridae: Colydiinae) in Korea

Journal of Asia-Pacific Biodiversity, 2020

A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita haya... more A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita hayashii (Sasaji) and S. ussuriensis (Iablokoff-Khnzorian), are newly added to the Korean fauna. A key to species in East Asia, descriptions, habitus photographs, and illustrations of diagnostic characters of the Korean species are provided.

First record of the genus Synchita Hellwig, 1792 (Coleoptera: Zopheridae: Colydiinae) in Korea

Journal of Asia-Pacific Biodiversity, 2020

A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita haya... more A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita hayashii (Sasaji) and S. ussuriensis (Iablokoff-Khnzorian), are newly added to the Korean fauna. A key to species in East Asia, descriptions, habitus photographs, and illustrations of diagnostic characters of the Korean species are provided.

Distribution and Biological Quality Assessment on Benthic Macroinvertebrates of Wolchulsan National Park, South Korea

by Christine Jewel C . Uy-Yabut and sangwoo Jung

This study presents the distributional pattern and species diversity of benthic macroinvertebrate... more This study presents the distributional pattern and species diversity of benthic macroinvertebrates during the period from April to October, 2018 in Wolchulsan National Park. As a result, a total of 131 species of benthic macroinvertebrates (68 families, 16 orders, 4 phyla) were observed in Wolchulsan National Park. Among the Insecta, Trichoptera (35 spp.: 26.72%) was the most diverse group followed by Ephemeroptera (23 spp.: 17.56%), Odonata (16 spp.: 12.21%), Coleoptera (11 spp.: 8.40%), Diptera (10 spp.: 7.63%), Hemiptera (9 spp.: 6.87%), Plecoptera (8 spp.: 6.11%), and Megaloptera (3 spp.: 2.29%). In addition, Platyhelminthes (1 sp.: 0.76%), Mollusca (6 spp.: 4.58%), Annelida (3 spp.: 2.29%), and Crustacea (6 spp.: 4.58%) were collected. In the result of the Ecological score of benthic macroinvertebrate community (ESB) indicate that almost all sites were evaluated excellent or good for the environmental status, while the sites 9 and 11 showed relatively lower indices (32 and 41 marks). In this survey, three Korean endemic species were identified: Ephemera separigata, Caenis moe, and Psilotreta locumtenens . Also, 14 species belonging to the management of exportable group and 11 habitat specific species were observed. From 2009 to 2018, the benthic macroinvertebrate inhabitants in Wolchulsan National Park were 179 species which are considered to be important data for monitoring and research. Distribution of benthic macroinvertebrates appeared to be a significant factor that influence the biogeography and forensic science in the near future.

A DNA barcode library of the beetle reference collection (Insecta: Coleoptera) in the National Science Museum, Korea

Coleoptera is a group of insects that are most diverse among insect resources. Although used as i... more Coleoptera is a group of insects that are most diverse among insect resources. Although used as indicator species and applied in developing new drugs, it is difficult to identify them quickly. Since the development of a method using mitochondrial DNA information for identification, studies have been conducted in Korea to swiftly and accurately identify species. The National Science Museum of Korea (NSMK) has been collecting and morphologically identifying domestic reference insects since 2013, and building a database of DNA barcodes with digital images. The NSMK completed construction of a database of digital images and DNA barcodes of 60 beetle species in the Korean National Research Information System. A total of 179 specimens and 60 species were used for the analysis, and the averages of intra-specific and interspecific variations were 0.70AE0.45% and 26.34AE6.01%, respectively, with variation rates ranging from 0% to 1.45% and 9.83% to 56.23%, respectively.

Temporal changes in benthic macroinvertebrates and their interactions with fish predators after restoration in the Cheonggyecheon, a downtown stream in Seoul, Korea

The Cheonggyecheon (Cheonggye stream), a downtown stream in Seoul, Korea, was restored by the his... more The Cheonggyecheon (Cheonggye stream), a downtown stream in Seoul, Korea, was restored by the historic Cheonggyecheon Restoration Project (2003–2005), and its discharge and other environmental conditions are artificially regulated throughout the year. The aim of this study was to assess temporal changes in benthic macroinvertebrates and their interactions with fish predators in the Cheonggyecheon. Sampling was conducted twice a year (spring and autumn) at three sections of the stream from 2006 to 2010 using a Surber sampler (50 × 50 cm) for benthic macroinvertebrates and a cast net (mesh size, 10 × 10 mm) and a kick net (mesh size, 5 × 5 mm) for fishes. Analyses of annual precipitation and most water quality parameters showed no significant differences across the study period (P > 0.05). The species richness and density of benthic macro-invertebrates and fishes varied across the sampling period. Analyses of functional feeding groups and trophic guilds showed distinct trends, such as an increase in the number of insectivorous fish in the absence of invertebrate predators. Correlation and regression analyses for five major groups of benthic macroinvertebrates and fishes demonstrated that the density of certain groups of benthic macro-invertebrates (e.g. Tubificidae, Erpobdellidae, Baetidae, and Chironomidae) and insectivorous fishes (e.g. Gobioninae, Leuciscinae, Danioninae, and Gobiidae) were negatively correlated. In conclusion, in an artificially regulated stream like the restored Cheonggyecheon, where physical environments are nearly unchanged, fish predation can be a major factor controlling benthic macroinver-tebrate communities.

Aquatic Insects: International Journal of Freshwater Entomology Review of the Korean Elmidae (Coleoptera: Dryopoidea) with descriptions of three new species

The Korean species of the riffle beetle family Elmidae are revised. Thirteen species belonging to... more The Korean species of the riffle beetle family Elmidae are revised. Thirteen species belonging to nine genera are recognized including three new species, Grouvellinus aerosus sp. n., Zaitzeviaria kyungseoki sp. n., and Z. obesa sp. n., and one unidentified species of Ordobrevia Sanderson, 1953. Leptelmis coreana Jung and Bae, 2012 and L. ochra Jung and Bae, 2012 are synonymized with L. gracilis gracilis Sharp, 1888. Four species, Macronychus levanidovae Lafer, 1980, Stenelmis koreana Sat^o, 1978, S. cf. montana Zhang and Yang, 1995, and Zaitzevia tsushimana Nomura, 1963, are newly recorded from South Korea. Descriptions, type information, synonymies,
illustrations of diagnostic characters and geographical variation, a checklist, and a key to the adults of the Korean species are provided.

DNA-based identification of South Korean Megaloptera larvae with taxonomic notes

—Mitochondrial DNA (mtDNA) sequences, which serve as DNA barcodes, have been used to associate im... more —Mitochondrial DNA (mtDNA) sequences, which serve as DNA barcodes, have been used to associate immature and adult stages of insects and to delineate species. The partial mitochondrial cytochrome c oxidase subunit I (COI) gene sequences for South Korean Megaloptera (all known in the adult stage) were tested to identify undetermined larvae as a rapid and effective method from 31 specimens (16 adults and 15 larvae). The COI gene sequences distinguished all six known Megaloptera species, with a low genetic distance between larvae and adults (0.50 ± 0.21%). Based on the COI gene sequences, we associated five types of larvae with known adults including the following four species of newly described larval stages: Sialis annae Vshivkova, 1979 (Megaloptera: Sialidae); Neochauliodes formosanus (Okamoto, 1910) (Megaloptera: Corydalidae); Parachauliodes asahinai Liu et al., 2008 (Megaloptera: Corydalidae); and Protohermes xanthodes Navás, 1913 (Megaloptera: Corydalidae). The known larval stage of Sialis koreana Jung and Bae, 2012 (Megaloptera: Sialidae) was confirmed, and the morphological variation in the male genitalia of Sialis longidens Klingstedt, 1932 (Megaloptera: Sialidae) is discussed. A larval key to the six South Korean species of Megaloptera is provided.

Taxonomic Review of the Korean Megloptera with Description of Sialis koreana, New Species

The insect order Megaloptera is composed of two families, Sialidae and Corydalidae, wherein the f... more The insect order Megaloptera is composed of two families, Sialidae and Corydalidae, wherein the family Corydalidae includes subfamiles Corydalinae and Chauliodinae. The order consists of 328 extant species worldwide including 81 Sialidae species, 131 Coydalinae species, and 116 Chauliodinae species (Cover & Resh, 2008). Because of their large body size and relatively low agility, members of this order are relatively well known (

JSW Description Larva of Ceraclea lobulata from Korea 2006

The larval stage of Ceraclea lobulata (Martynov) is described for the first time. The larva can b... more The larval stage of Ceraclea lobulata (Martynov) is described for the first time. The larva can be distinguished from other known larvae of Korean Ceraclea by the absence of head marking and by the shape of frontoclypeus, which is equal in anterior and posterior width. The larval case is also described. Line-drawings of key characters and discussion on Korean Ceraclea are provided.

Jung SW Elmidae Genus Leptelmis from Korea 2012

Jung SW Elmidae Optioservus & Heterlimnius 2011

A new riffle beetle species Optioservus gapyeongensis n. sp. is described from the adult and larv... more A new riffle beetle species Optioservus gapyeongensis n. sp. is described from the adult and larval stages. Heterlimnius hasegawai (Nomura), previously misidentified in Korea as Optioservus (Cyclolimnius) kubotai Nomura or Optioservus variabilis Nomura, is redescribed. The adults and larvae of both species inhabit attached mosses on substrates of clean mountain streams, headwaters or springs. Photographs of dorsal adults and habitats and line drawings of diagnostic characters are provided.

JSW Aquatic insect fanua of Sapa in Vietnam 2008

Aquatic insect communities were investigated from the Muonghoa Stream in the Sapa Highland (highe... more Aquatic insect communities were investigated from the Muonghoa Stream in the Sapa Highland (highest peak 3,143 m), a subtropical mountain stream in northern Vietnam. Field investigations for quantitative (Surber net 50 cm 9 50 cm, mesh size 0.2 mm, riffle and pool/run) and qualitative (hand net, mesh size 1 mm) sampling were conducted at nine sites along the watercourse between 27 November and 2 December 2005. As a result, a total of 216 species (the majority of them undescribed) belonging to 139 genera, 61 families, and nine orders were recognized: 53 Ephemeroptera species (24.5%), nine Odonata species (4.2%), 15 Plecoptera species (6.9%), seven Hemiptera species (3.2%), 35 Coleoptera species (16.2%), one Megaloptera species (0.5%), 29 Diptera species (13.4%), 66 Trichoptera species (30.6%), and one Lepidoptera species (0.5%). Trichoptera, Ephemeroptera, and Coleoptera represented the major aquatic insect groups with regard to taxonomic and individual richness, whereas Hemiptera and Odonata were relatively less diverse and abundant than in studies of other tropical Southeast Asian streams. The dominance, richness, and diversity indices (H 0 ) fell within the following ranges [mean ± standard deviation (SD)]: 0.18-0.76 (0.42 ± 0.19), 4.13-9.19 (7.06 ± 1.45), and 1.61-3.22 (2.67 ± 0.55), respectively. Riffle habitats generally yielded numbers of aquatic insect species and individuals approximately twice that sampled in pool/run habitats. Shredders were relatively larger in proportion within the headwater reach, whereas scrapers and collectorgatherers were more abundant in the middle and lower stream reaches. This functional feeding group composition is characteristic of temperate streams in East Asia. The results of detrended correspondence analysis and Bray-Curtis cluster analysis indicated that aquatic insect compositions at the sampling sites were very reflective of the reach characteristics, which evidence gradual changes with altitude and stream order along the stream watercourse. This is the first comprehensive investigation of aquatic insects in highland Southeast Asian regions.

Ancyrona diversa New to Korea (Coleoptera: Cleroidea: Trogossitidae), with a Key to the Palaearctic Species of the Genus

Animal Systematics, Evolution and Diversity, 2020

The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family c... more The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family contains about 50 genera and 600 described species, and the group was recently classified by Kolibáč into three subfamilies, Lophocaterinae, Peltinae and Trogossitinae. Among the lophocaterine genera, a genus Ancyrona Reitter includes 62 species in most parts of the world except the Nearctic region, and is divided into five informal species groups by Kolibáč. In this study, the genus Ancyrona and its a single species, A. diversa (Pic), is newly reported in the Korean fauna. A diagnosis, habitus photographs, and illustrations of female diagnostic characters are provided, with a key to Palaearctic species of the genus Ancyrona.

Review of the water penny beetles (Coleoptera: Psephenidae) of the Korean Peninsula based on morphology and mitochondrial cytochrome c oxidase subunit I gene sequences

Journal of Asia-Pacific Biodiversity, 2020

The water penny beetles (Coleoptera: Psephenidae) of the Korean Peninsula are reviewed based on t... more The water penny beetles (Coleoptera: Psephenidae) of the Korean Peninsula are reviewed based on their external morphology and mitochondrial cytochrome c oxidase subunit I gene sequences. Four subfamilies, four genera, and four species, including a new species described herein, are recognized: Eubrianax ramicornis Kiesenwetter, 1874 (Eubrianacinae), Homoeogenus coreanicum sp. nov. (Eubriinae), Malacopsephenoides japonicus (Masuda, 1935) (Psephenoidinae), and Mataeopsephus japonicus (Matsumura, 1916) (Psepheninae). The psephenid subfamily Eubriinae and the genus Homoeogenus Waterhouse, 1880 are here recorded from the Korean Peninsula for the first time. Analyses of the cytochrome c oxidase subunit I gene sequences of larvae and adults of the four Korean species produced a bootstrap support of 100% for each species. Descriptions, habitat data, habitus photographs, linedrawings of male genitalia, and keys to the adults and larvae of the Korean species of Psephenidae are provided.

Ancyrona diversa New to Korea (Coleoptera: Cleroidea: Trogossitidae), with a Key to the Palaearctic Species of the Genus

Animal Systematics, Evolution and Diversity, 2020

The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family c... more The family Trogossitidae Latreille occurs worldwide, including some Pacific islands. The family contains about 50 genera and 600 described species, and the group was recently classified by Kolibáč into three subfamilies, Lophocaterinae, Peltinae and Trogossitinae. Among the lophocaterine genera, a genus Ancyrona Reitter includes 62 species in most parts of the world except the Nearctic region, and is divided into five informal species groups by Kolibáč. In this study, the genus Ancyrona and its a single species, A. diversa (Pic), is newly reported in the Korean fauna. A diagnosis, habitus photographs, and illustrations of female diagnostic characters are provided, with a key to Palaearctic species of the genus Ancyrona.

First record of the genus Synchita Hellwig, 1792 (Coleoptera: Zopheridae: Colydiinae) in Korea

Journal of Asia-Pacific Biodiversity, 2020

A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita haya... more A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita hayashii (Sasaji) and S. ussuriensis (Iablokoff-Khnzorian), are newly added to the Korean fauna. A key to species in East Asia, descriptions, habitus photographs, and illustrations of diagnostic characters of the Korean species are provided.

First record of the genus Synchita Hellwig, 1792 (Coleoptera: Zopheridae: Colydiinae) in Korea

Journal of Asia-Pacific Biodiversity, 2020

A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita haya... more A taxonomic study of the genus Synchita Hellwig in Korea is presented. Two species, Synchita hayashii (Sasaji) and S. ussuriensis (Iablokoff-Khnzorian), are newly added to the Korean fauna. A key to species in East Asia, descriptions, habitus photographs, and illustrations of diagnostic characters of the Korean species are provided.

Distribution and Biological Quality Assessment on Benthic Macroinvertebrates of Wolchulsan National Park, South Korea

by Christine Jewel C . Uy-Yabut and sangwoo Jung

This study presents the distributional pattern and species diversity of benthic macroinvertebrate... more This study presents the distributional pattern and species diversity of benthic macroinvertebrates during the period from April to October, 2018 in Wolchulsan National Park. As a result, a total of 131 species of benthic macroinvertebrates (68 families, 16 orders, 4 phyla) were observed in Wolchulsan National Park. Among the Insecta, Trichoptera (35 spp.: 26.72%) was the most diverse group followed by Ephemeroptera (23 spp.: 17.56%), Odonata (16 spp.: 12.21%), Coleoptera (11 spp.: 8.40%), Diptera (10 spp.: 7.63%), Hemiptera (9 spp.: 6.87%), Plecoptera (8 spp.: 6.11%), and Megaloptera (3 spp.: 2.29%). In addition, Platyhelminthes (1 sp.: 0.76%), Mollusca (6 spp.: 4.58%), Annelida (3 spp.: 2.29%), and Crustacea (6 spp.: 4.58%) were collected. In the result of the Ecological score of benthic macroinvertebrate community (ESB) indicate that almost all sites were evaluated excellent or good for the environmental status, while the sites 9 and 11 showed relatively lower indices (32 and 41 marks). In this survey, three Korean endemic species were identified: Ephemera separigata, Caenis moe, and Psilotreta locumtenens . Also, 14 species belonging to the management of exportable group and 11 habitat specific species were observed. From 2009 to 2018, the benthic macroinvertebrate inhabitants in Wolchulsan National Park were 179 species which are considered to be important data for monitoring and research. Distribution of benthic macroinvertebrates appeared to be a significant factor that influence the biogeography and forensic science in the near future.

A DNA barcode library of the beetle reference collection (Insecta: Coleoptera) in the National Science Museum, Korea

Coleoptera is a group of insects that are most diverse among insect resources. Although used as i... more Coleoptera is a group of insects that are most diverse among insect resources. Although used as indicator species and applied in developing new drugs, it is difficult to identify them quickly. Since the development of a method using mitochondrial DNA information for identification, studies have been conducted in Korea to swiftly and accurately identify species. The National Science Museum of Korea (NSMK) has been collecting and morphologically identifying domestic reference insects since 2013, and building a database of DNA barcodes with digital images. The NSMK completed construction of a database of digital images and DNA barcodes of 60 beetle species in the Korean National Research Information System. A total of 179 specimens and 60 species were used for the analysis, and the averages of intra-specific and interspecific variations were 0.70AE0.45% and 26.34AE6.01%, respectively, with variation rates ranging from 0% to 1.45% and 9.83% to 56.23%, respectively.

Temporal changes in benthic macroinvertebrates and their interactions with fish predators after restoration in the Cheonggyecheon, a downtown stream in Seoul, Korea

The Cheonggyecheon (Cheonggye stream), a downtown stream in Seoul, Korea, was restored by the his... more The Cheonggyecheon (Cheonggye stream), a downtown stream in Seoul, Korea, was restored by the historic Cheonggyecheon Restoration Project (2003–2005), and its discharge and other environmental conditions are artificially regulated throughout the year. The aim of this study was to assess temporal changes in benthic macroinvertebrates and their interactions with fish predators in the Cheonggyecheon. Sampling was conducted twice a year (spring and autumn) at three sections of the stream from 2006 to 2010 using a Surber sampler (50 × 50 cm) for benthic macroinvertebrates and a cast net (mesh size, 10 × 10 mm) and a kick net (mesh size, 5 × 5 mm) for fishes. Analyses of annual precipitation and most water quality parameters showed no significant differences across the study period (P > 0.05). The species richness and density of benthic macro-invertebrates and fishes varied across the sampling period. Analyses of functional feeding groups and trophic guilds showed distinct trends, such as an increase in the number of insectivorous fish in the absence of invertebrate predators. Correlation and regression analyses for five major groups of benthic macroinvertebrates and fishes demonstrated that the density of certain groups of benthic macro-invertebrates (e.g. Tubificidae, Erpobdellidae, Baetidae, and Chironomidae) and insectivorous fishes (e.g. Gobioninae, Leuciscinae, Danioninae, and Gobiidae) were negatively correlated. In conclusion, in an artificially regulated stream like the restored Cheonggyecheon, where physical environments are nearly unchanged, fish predation can be a major factor controlling benthic macroinver-tebrate communities.

Aquatic Insects: International Journal of Freshwater Entomology Review of the Korean Elmidae (Coleoptera: Dryopoidea) with descriptions of three new species

The Korean species of the riffle beetle family Elmidae are revised. Thirteen species belonging to... more The Korean species of the riffle beetle family Elmidae are revised. Thirteen species belonging to nine genera are recognized including three new species, Grouvellinus aerosus sp. n., Zaitzeviaria kyungseoki sp. n., and Z. obesa sp. n., and one unidentified species of Ordobrevia Sanderson, 1953. Leptelmis coreana Jung and Bae, 2012 and L. ochra Jung and Bae, 2012 are synonymized with L. gracilis gracilis Sharp, 1888. Four species, Macronychus levanidovae Lafer, 1980, Stenelmis koreana Sat^o, 1978, S. cf. montana Zhang and Yang, 1995, and Zaitzevia tsushimana Nomura, 1963, are newly recorded from South Korea. Descriptions, type information, synonymies,
illustrations of diagnostic characters and geographical variation, a checklist, and a key to the adults of the Korean species are provided.

DNA-based identification of South Korean Megaloptera larvae with taxonomic notes

—Mitochondrial DNA (mtDNA) sequences, which serve as DNA barcodes, have been used to associate im... more —Mitochondrial DNA (mtDNA) sequences, which serve as DNA barcodes, have been used to associate immature and adult stages of insects and to delineate species. The partial mitochondrial cytochrome c oxidase subunit I (COI) gene sequences for South Korean Megaloptera (all known in the adult stage) were tested to identify undetermined larvae as a rapid and effective method from 31 specimens (16 adults and 15 larvae). The COI gene sequences distinguished all six known Megaloptera species, with a low genetic distance between larvae and adults (0.50 ± 0.21%). Based on the COI gene sequences, we associated five types of larvae with known adults including the following four species of newly described larval stages: Sialis annae Vshivkova, 1979 (Megaloptera: Sialidae); Neochauliodes formosanus (Okamoto, 1910) (Megaloptera: Corydalidae); Parachauliodes asahinai Liu et al., 2008 (Megaloptera: Corydalidae); and Protohermes xanthodes Navás, 1913 (Megaloptera: Corydalidae). The known larval stage of Sialis koreana Jung and Bae, 2012 (Megaloptera: Sialidae) was confirmed, and the morphological variation in the male genitalia of Sialis longidens Klingstedt, 1932 (Megaloptera: Sialidae) is discussed. A larval key to the six South Korean species of Megaloptera is provided.

Taxonomic Review of the Korean Megloptera with Description of Sialis koreana, New Species

The insect order Megaloptera is composed of two families, Sialidae and Corydalidae, wherein the f... more The insect order Megaloptera is composed of two families, Sialidae and Corydalidae, wherein the family Corydalidae includes subfamiles Corydalinae and Chauliodinae. The order consists of 328 extant species worldwide including 81 Sialidae species, 131 Coydalinae species, and 116 Chauliodinae species (Cover & Resh, 2008). Because of their large body size and relatively low agility, members of this order are relatively well known (

JSW Description Larva of Ceraclea lobulata from Korea 2006

The larval stage of Ceraclea lobulata (Martynov) is described for the first time. The larva can b... more The larval stage of Ceraclea lobulata (Martynov) is described for the first time. The larva can be distinguished from other known larvae of Korean Ceraclea by the absence of head marking and by the shape of frontoclypeus, which is equal in anterior and posterior width. The larval case is also described. Line-drawings of key characters and discussion on Korean Ceraclea are provided.

Jung SW Elmidae Genus Leptelmis from Korea 2012

Jung SW Elmidae Optioservus & Heterlimnius 2011

A new riffle beetle species Optioservus gapyeongensis n. sp. is described from the adult and larv... more A new riffle beetle species Optioservus gapyeongensis n. sp. is described from the adult and larval stages. Heterlimnius hasegawai (Nomura), previously misidentified in Korea as Optioservus (Cyclolimnius) kubotai Nomura or Optioservus variabilis Nomura, is redescribed. The adults and larvae of both species inhabit attached mosses on substrates of clean mountain streams, headwaters or springs. Photographs of dorsal adults and habitats and line drawings of diagnostic characters are provided.

JSW Aquatic insect fanua of Sapa in Vietnam 2008

Aquatic insect communities were investigated from the Muonghoa Stream in the Sapa Highland (highe... more Aquatic insect communities were investigated from the Muonghoa Stream in the Sapa Highland (highest peak 3,143 m), a subtropical mountain stream in northern Vietnam. Field investigations for quantitative (Surber net 50 cm 9 50 cm, mesh size 0.2 mm, riffle and pool/run) and qualitative (hand net, mesh size 1 mm) sampling were conducted at nine sites along the watercourse between 27 November and 2 December 2005. As a result, a total of 216 species (the majority of them undescribed) belonging to 139 genera, 61 families, and nine orders were recognized: 53 Ephemeroptera species (24.5%), nine Odonata species (4.2%), 15 Plecoptera species (6.9%), seven Hemiptera species (3.2%), 35 Coleoptera species (16.2%), one Megaloptera species (0.5%), 29 Diptera species (13.4%), 66 Trichoptera species (30.6%), and one Lepidoptera species (0.5%). Trichoptera, Ephemeroptera, and Coleoptera represented the major aquatic insect groups with regard to taxonomic and individual richness, whereas Hemiptera and Odonata were relatively less diverse and abundant than in studies of other tropical Southeast Asian streams. The dominance, richness, and diversity indices (H 0 ) fell within the following ranges [mean ± standard deviation (SD)]: 0.18-0.76 (0.42 ± 0.19), 4.13-9.19 (7.06 ± 1.45), and 1.61-3.22 (2.67 ± 0.55), respectively. Riffle habitats generally yielded numbers of aquatic insect species and individuals approximately twice that sampled in pool/run habitats. Shredders were relatively larger in proportion within the headwater reach, whereas scrapers and collectorgatherers were more abundant in the middle and lower stream reaches. This functional feeding group composition is characteristic of temperate streams in East Asia. The results of detrended correspondence analysis and Bray-Curtis cluster analysis indicated that aquatic insect compositions at the sampling sites were very reflective of the reach characteristics, which evidence gradual changes with altitude and stream order along the stream watercourse. This is the first comprehensive investigation of aquatic insects in highland Southeast Asian regions.