First report Xenocorixa vittipennis (Horváth) (Hemiptera, Corixoidea, Corixidae) from South Korea and checklist of the Korean Corixoidea

Abstract

Background

Xenocorixa Hungerford, 1947 is a monotypic genus containing a single species, Xenocorixa vittipennis (Horváth, 1879), known only from China (Beijing, Hubei, Shandong, Shanghai, Tianjin, Zhejiang), Japan (Honshu, Shikoku, Kyushu) and Taiwan.

New information

Xenocorixa vittipennis (Horváth, 1879) is reported from South Korea for the first time. A diagnosis and supplementary description of this species are provided, together with illustrations of the adult and genitalia. A revised checklist of Korean Corixoidea is also provided.

Introduction

Corixoidea Leach, 1815 is one of the largest superfamilies of aquatic bugs (Nepomorpha), comprising approximately 35 genera and more than 600 species (Schuh and Slater 2020). Members of the Corixoidea are found worldwide and are the only water bugs that reach the Arctic (Hungerford 1948, Aukema et al. 1995). The Corixoidea includes three families: the Corixidae Leach, 1815 as proposed by Leach (1815); the Diaprepocoridae Lundblad, 1928, as established by Lundblad (1928) and the Micronectidae Jaczewski, 1924, as delineated by Jaczewski (1924). The classification status of the Diaprepocoridae and Micronectidae has been discussed in numerous studies (see Andersen and Weir (2004), Chen et al. (2005), Schuh and Slater (2020), Ye et al. (2020)). The phylogenetic analyses conducted by Ye et al. (2023) provided consistent support for the monophyly of each family.

Xenocorixa Hungeford, 1947 is a monotypic genus in the Corixidae. Xenocorixa vittipennis (Horváth, 1879) is the only species in this genus and is distributed in China and Japan (Hayashi and Miyamoto 2018, Xie et al. 2024). This genus is similar to Hesperocorixa Kirkaldy, 1908 in general appearance. The two genera can be distinguished by whether or not the lateral lobe of the prothorax is obscured by the mesoepimeron and by differences in the length-to-width ratio of the mesoepimeron.

Studies on the fauna of Corixidae in Korea have been conducted to a very limited extent. The first record of this family from Korea was by Okamoto 1924, who reported Hesperocorixa distanti (Kirkaldy, 1899) and Sigara (Tropocorixa) substriata (Uhler, 1896). Kwon et al. (2001) revised Korean Corixidae into three subfamilies (including Micronectinae), four genera and 16 species. After Kwon et al. (2001), there is no taxonomic research about Korean Corixidae and the Micronectidae is still treated as the subfamily Micronectinae in the checklists (Kwon et al. 2001, Cho and Kwon 2017, Park and Lee 2021). The aim of the study is to report Xenocorixa vittipennis, which is new to the Korean fauna. Comprehensive description and illustration of the species are provided. A revised checklist of Corixoidea from the Korean Peninsula is also provided herein.

Materials and methods

Materials for the study were collected for this study using a light trap (mercury vapour lamp, 220V/400W) and a stainless-steel strainer. The specimens were euthanised and preserved in 80% ethanol. Species identification was based on the keys and/or descriptions of Horváth (1879), Hungerford (1947) and Hayashi and Miyamoto (2018). All materials are deposited in the Laboratory of Insect Phylogenetics & Evolution, Jeonbuk National University (JBNU in Jeonju, South Korea) and the National Institute of Biological Resources (NIBR in Incheon, South Korea).

Genital preparations were made with 10% potassiun hydroxide (KOH) at 70℃ for 10 minutes. After rinsing the KOH with distilled water, the genitalia were dissected from the apex of the abdomen and then transferred to glycerine for further examination. The specimens and dissected genitalia were observed using a Canon EOS 6D digital camera with a Canon Macro Lens EF 100 mm (Canon, Japan), mounted on a Stack Shot Macro Package and dome illuminator Lecia LED 5000 HDI or a Tucsen Dhyana 400 DC digital camera (Tucsen Photonics, China) with Leica S8AP0 stereomicroscope (Leica Micoro systems, Germany) with the same dome illuminator. Photographs were taken and merged using Helicon Focus software (version 8.2.2. Pro, Helicon Soft, Ukraine) or Mosaic software (version 2.4) with Adobe Photoshop 2022 (version 23.5.1, Adobe, United States of America). Further detailed images of the antenna and genitalia were captured by utilising a Leica Z16 APO stereomicroscope (Leica Microsystems, Germany) with Optview software (Korea Lab Tech, Republic of Korea). The distribution map was created using QGIS 3.40.4 (OGSeo, Switzerland). For the information on the distribution map, we cited Xie et al. (2024) for China and the Red Data Books of each Prefecture and Hasegawa (2018) for Japan.

Taxon treatments

Xenocorixa

Hungeford, 1947

9047E681-D3B1-55F7-A14C-EB4D5903E515

• Xenocorixa Hungeford, 1947 - Hungerford (1947): 93.

• Corisa vittipennis Horváth, 1879

Xenocorixa vittipennis

Horváth, 1879

25ED0F02-BC79-5FD8-8563-55A468F4AB8E

• Corisa vittipennis Horváth, 1879 - Horváth (1879): 151. Type locality: China, Sobsam-Timbu.

• Corisa miyakei Matsumura, 1905 - Matsumura (1905): 64. Type locality: Japan, Nakano nr Tokyo.

• Sigara horni Jaczewski, 1928 - Jaczewski (1928): 110. Type locality: China, Shantun, Yenchowfu.

• Sigara vittipennis : Lundblad, 1933a - Lundblad (1933): 451.

• Xenocorixa vittipennis : Hungerford, 1947 - Hungerford (1947): 93.

Materials

1. Type status: Other material. Occurrence: recordedBy: J.-W. Cheong; individualCount: 1; sex: female; lifeStage: adult; occurrenceID: D6551C7A-6003-5ECE-B013-EFB347211D43; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family: Corixidae; genus: Xenocorixa; specificEpithet: vittipennis; Location: country: South Korea; stateProvince: Gyeongsangnam-do; county: Hadong-gun; locality: Geumnam-myeon, Daesong-ri, Daesongsoryuji; verbatimElevation: 146 m; decimalLatitude: 34.977784; decimalLongitude: 127.858864; Event: eventDate: 7 VII 2010; Record Level: institutionCode: NIBR

2. Type status: Other material. Occurrence: recordedBy: J. Kim et al.; individualCount: 21; sex: 8 males, 13 females; lifeStage: adult; occurrenceID: 419DA9EA-197A-58D7-9BA6-9B2EDA122EAE; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family: Corixidae; genus: Xenocorixa; specificEpithet: vittipennis; Location: country: South Korea; stateProvince: Jeollanam-do; county: Wando-gun; locality: Wando-eup, Jeongdo-ri; verbatimElevation: 8 m; decimalLatitude: 34.309312; decimalLongitude: 126.705769; Event: eventDate: 26 VII 2024; Record Level: institutionCode: JBNU

3. Type status: Other material. Occurrence: recordedBy: J. Kim and D. Choi; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: A563CB13-359F-5EA2-AE7D-17652FF0D41E; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family: Corixidae; genus: Xenocorixa; specificEpithet: vittipennis; Location: country: South Korea; stateProvince: Incheon; county: Ongjin-gun; locality: Deokjeok-myeon, Seopo-ri; verbatimElevation: 52 m; decimalLatitude: 37.214759; decimalLongitude: 126.116845; Event: eventDate: 13 VIII 2024; Record Level: institutionCode: JBNU

4. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 45; lifeStage: 2 2nd instar nymphs, 43 3rd instar nymphs; occurrenceID: FAA01C47-554F-5CEB-9708-1EFE59C2979F; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family: Corixidae; genus: Xenocorixa; specificEpithet: vittipennis; Location: country: South Korea; stateProvince: Jeollanam-do; county: Wando-gun; locality: Wando-eup, Jeongdo-ri; verbatimElevation: 8 m; decimalLatitude: 34.309312; decimalLongitude: 126.705769; Event: eventDate: 29 II 2025; Record Level: institutionCode: JBNU

5. Type status: Other material. Occurrence: recordedBy: J. Kim et al.; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 32F21793-3B14-5517-B0D3-77DE2209940F; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family: Corixidae; genus: Xenocorixa; specificEpithet: vittipennis; Location: country: South Korea; stateProvince: Jeollanam-do; county: Hampyeong-gun; locality: Hampyeong-eup, Japung-ri; verbatimElevation: 113 m; decimalLatitude: 35.036441; decimalLongitude: 126.468439; Event: eventDate: 23 VI 2025; Record Level: institutionCode: JBNU

Description

Body length. ♂ 8.3–8.8 mm; ♀ 8.7–9.3 mm (based on 24 specimens).

Head (Fig. 1D, E and G). Whitish-yellow. Head slightly longer than the pronotal disc in dorsal view, its anterior margin protruding beyond the eyes. Male fovea depressed. Infraocular area reduced. Rostrum with transverse sulcations. The antennae four segments I–IV; antennal segments I–II shorter; antennal segment IV one-third the length of the antennal segment III.

Figure 1.

Xenocorixa vittipennis (Horváth, 1879). A–C habitus of male in (A) dorsal, (B) lateral, (C) ventral; D–E head and pronotal disk of male in (D) dorsal, (E) ventral; F, metaxyphus; G antenna; H foreleg of male; I foreleg of female. Scale bars: A–C, 2 mm; D–E, 1 mm; F–I, 0.5 mm.

Thorax (Fig. 1D–F, H and I). Yellowish-brown. Pronotum with distinct 6–7 dark transverse bands. Mesoepimeron raised broadly. Hemelytra with reticulation of dark lines; membrane narrow. Fore-leg similar in male and female; front tibia short; pala long, flat, densely covered with palmar hairs in ventral side; male with peg row consisting of 14 pegs. Mid-leg with 2 apical claws; claws longer than tarsus. Hind-leg shorter than mid-leg; tarsus densely covered with swimming hairs. Metaxyphus triangular.

Abdomen (Fig. 2). Yellowish-brown. Male abdominal asymmetry dextral. Strigil consisting of 14 combs. Genital capsule yellowish-brown, oval in lateral view; aedeagus apical furcate; right paramere strongly broader median to apex; left paramere strongly curved at basal 1/3, tapering apically.

Figure 2.

Detail abdominal and genitalic features of Xenocorixa vittipennis. A tergite V–VIII of male in dorsal; B strigil; C–E genital capsule of male in (C) dorsal, (D) lateral, (E) ventral; F aedeagus in dorsal; G left paramere in dorsal; H right paramere in dorsal. Scale bars: A, 1 mm; B–G, 0.5 mm; H, 0.25 mm.

Diagnosis

Lateral lobe of prothorax is obscured posteriorly by mesoepimeron. Mesoepimeron is shorter than width in lateral view, with a secondary suture extending across it from the lateral bend to the inner basal angle of the mesoepimeron. The last antennal segment very short, one-third the length of the antennal segment III. The pruinose area along the base of the claval suture is short and broad. Males with dextral strigil (Hungerford 1947, Hasegawa 2018).

Distribution

China (North: Beijing, Tianjin; East: Shandong, Shanghai, Zhejiang; Central: Hubei (Xie et al. 2024)), Japan (Honshu, Shikoku, Kyushu (Nakajima et al. 2020)), Korea (new record), Taiwan (Fig. 4).

Figure 4.

Distribution of Xenocorixa vittipennis in east Asia.

Notes

Xenocorixa vittipennis was observed in an agricultural reservoir (Fig. 3A) from South Korea near the coastal area (Fig. 5). Adults demonstrated a positive phototactic response and were collected through light traps (Fig. 3B). In February, 2^nd and 3^rd instar nymphs were collected in an agricultural reservoir in Wando-gun (Fig. 3C). Meanwhile, reports from Miyagi Prefecture, Japan, suggest that the species overwinters as eggs that hatch the following spring (Hasegawa 2018).

Figure 3.

A habitat (Wando-gun, South Jeolla Province); B female adult attracted to light trap; C 3^rd instar nymphs; D 3^rd instar nymphs feeding on frozen bloodworm.

Figure 5.

Detailed distribution of Xenocorixa vittipennis in South Korea.

Most of the aquatic bugs are carnivorous. On the other hand, while zoophagy is the dominant feeding strategy in Corixidae, many species also consume other foods such as algae and detritus and their diet can vary significantly amongst different species, sexes or even populations of a single species, based on food availability (Haedicke et al. 2017, Xie et al. 2024). In this study, we documented the feeding behaviour of the 2^nd and 3^rd instar larvae of Xenovorixa vittipennis on frozen bloodworms under laboratory conditions (Fig. 3D).

Checklists

A checklist of Korean Corixoidea

Corixoidea

Leach, 1815

305774D5-CD1D-5FE2-83D6-1CF34C1C0314

Corixidae

Leach, 1815

06070038-0C0B-5FFE-A3E1-F046D92A110B

Corixinae

Leach, 1815

2D204EE1-60F3-5A23-B374-C13EC19EE7FD

Hesperocorixa

Kirkaldy, 1908

6EBBDFF8-7D4B-5BEE-9FC7-1CD8FF5F9EA9

Hesperocorixa crassipala

(Hungerford, 1940)

E9C3A4E3-EA9D-56B0-90BC-485E416157A3

Distribution

Korea, China (Henan, Hubei, Jiangsu, Shaanxi), Vietnam (Xie et al. 2024).

Hesperocorixa distanti

(Kirkaldy, 1899)

12780910-7E0D-5840-8131-C802CD599D33

Distribution

Korea (Gyeonggi-do, Chungcheongnam-do, Gyeongsangbuk-do, Gyeonsangnam-do, Jeju-do), China (Guangxi Zhuang Autonomous Region, Guizhou, Hebei, Henan, Hubei, Jiangsu, Jiangxi, Shanghai), Japan (Hokkaido, Honshu), Russia (Far East) (Okamoto 1924, Doi 1935, Lee and Kwon 1991, Kwon et al. 2001, Hayashi and Miyamoto 2018, Xie et al. 2024)

Hesperocorixa hokkensis

(Matsumura, 1905)

2D7FDAA0-5F8F-570B-B2BD-99319526D448

Distribution

Korea (Gyeonggi-do, Gyeongsangbuk-do, Gyeongsangnam-do), Japan (Honshu, Shikoku, Kyushu) (Lee 1971, Nam 1973, Kwon et al. 2001, Cho and Kwon 2017, Hayashi and Miyamoto 2018).

Hesperocorixa mandshurica

(Jaczewski, 1924)

6EACA771-F89E-5EC2-8A58-D07FED05DA64

Materials

1. Type status: Other material. Occurrence: recordedBy: J. Park; individualCount: 4; sex: 2 males, 2 females; lifeStage: adult; occurrenceID: 91815FFE-0E3F-5592-BB03-C97D15A62D49; Taxon: genus: Hesperocorixa; specificEpithet: mandshurica; Location: country: South Korea; stateProvince: Gyeongsangnam-do; county: Changnyeong-gun; locality: Yueo-myeon, Sejin-ri, Upo Wetland; verbatimElevation: 85 m; decimalLatitude: 35.544722; decimalLongitude: 128.422500; Event: eventDate: 1 VI 2009; Record Level: institutionCode: NIBR

2. Type status: Other material. Occurrence: recordedBy: H. Kim; individualCount: 2; sex: 2 males; lifeStage: adult; occurrenceID: 1BE7858D-7E64-54E2-AE71-D88D74EA8747; Taxon: genus: Hesperocorixa; specificEpithet: mandshurica; Location: country: South Korea; stateProvince: Gangwon-do; county: Hongcheon-gun; locality: Duchon-myeon, Cheonhyeon-ri, Mt. Gari; Event: eventDate: 30 VI 2016; Record Level: institutionCode: NIBR

3. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 1; sex: 1 female; lifeStage: adult; occurrenceID: B2FA7413-6ECB-5726-9C64-2ECF4CBF4705; Taxon: genus: Hesperocorixa; specificEpithet: mandshurica; Location: country: South Korea; stateProvince: Chungcheongbuk-do; county: Jecheon-si; locality: Cheongpung-myeon, Dan-ri; verbatimElevation: 200 m; decimalLatitude: 36.972222; decimalLongitude: 128.163333; Event: eventDate: 13 VI 2024; Record Level: institutionCode: JBNU

Distribution

Korea (Gangwon-do, Chungcheongbuk-do, Gyeonsangnam-do), China (Beijing, Hebei, Heilongjiang, Henan, Inner Mongolia Autonomous Region, Jiangsu, Jilin, Liaoning, Shaanxi, Shandong, Shanxi, Tianjin), Japan (Honshu, Shikoku, Kyushu), Russia (Far East) (Hayashi and Miyamoto 2018, Xie et al. 2024).

Corixini

Leach, 1815

A35858C3-4811-5B21-8CAD-CD8A2089DFDD

Sigara

Fabricius, 1775

547293FD-5CC8-5C19-B71F-01E762EE0BED

Pseudovermicorixa

Jaczewski, 1962

616D0BB1-43AD-5B6D-9C09-9B1758A68850

Sigara (Pseudovermicorixa) septemlineata

(Paiva, 1918)

95FE5D0F-12E1-5436-BF3B-8C4E1097C9F2

Materials

1. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 6; sex: 1 males, 5 females; lifeStage: adult; occurrenceID: 726EE717-8AFB-5843-A869-F73E7B89D913; Taxon: genus: Sigara; subgenus: Pseudovermicorixa; specificEpithet: septemlineata; Location: country: South Korea; stateProvince: Jeollanam-do; county: Jangseong-gun; locality: Seosam-myeon, Songhyeon-ri; verbatimElevation: 79 m; decimalLatitude: 35.357500; decimalLongitude: 126.770556; Event: eventDate: 29 IX 2023; Record Level: institutionCode: JBNU

2. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 2; sex: 1 males, 1 females; lifeStage: adult; occurrenceID: 0FE6841B-7AE9-5307-B371-C9A11D958D99; Taxon: genus: Sigara; subgenus: Pseudovermicorixa; specificEpithet: septemlineata; Location: country: South Korea; stateProvince: Jeollanam-do; county: Wando-gun; locality: Sinji-myeon, Sin-ri; verbatimElevation: 6 m; decimalLatitude: 34.328333; decimalLongitude: 126.822222; Event: eventDate: 1 VII 2025; Record Level: institutionCode: JBNU

Distribution

Korea (South: Gangwon-do, Gyeongsangbuk-do, Gyeongsangnam-do, Jellanam-do; North: Pyongyang), China (Fujian, Guizhou, Heilongjiang, Hongkong, Hubei, Inner Mongolia Autonomous Region, Guangxi Zhuang Autonomous Region, Jiangxi, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan), India, Japan (Honshu, Shikoku, Kyushu, Nansei Islands Tsushima Island), Russia (Far East), Myanmar, Taiwan (Jaczewski 1963, Kwon et al. 2001, Hayashi and Miyamoto 2018, Xie et al. 2024).

Sigara

Fabricius, 1775

4E342AA0-E35F-5935-B006-8754BFEB9B0A

Sigara (Sigara) weymarni

Hungerford, 1940

8E93721F-38B1-5DB2-B033-1019D45379B9

Distribution

Korea, China (Heilongjiang, Inner Mongolia Autonomous Region, Jilin, Liaoning), Mongolia, Russia (Xie et al. 2024).

Tropocorixa

Hutchinson, 1940

CB77AEEC-5FDD-53B3-BBAC-3E6B2C34B44E

Sigara (Tropocorixa) bellula

(Horváth, 1879)

F0FF9FD3-CD4F-54BE-A079-8DA52D3BFD1F

Materials

1. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 13; sex: 2 males, 11 females; lifeStage: adult; occurrenceID: 68FF6ACA-6F77-570F-9F23-4666D418E09A; Taxon: genus: Sigara; subgenus: Tropocorixa; specificEpithet: septemlineata; Location: country: South Korea; stateProvince: Gyeonggi-do; county: Hwaseong-si; locality: Songsan-myeon, Gojeong-ri; verbatimElevation: 2 m; decimalLatitude: 37.256111; decimalLongitude: 126.745833; Event: eventDate: 1 VII 2024; Record Level: institutionCode: JBNU

2. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 2; sex: 1 males, 1 females; lifeStage: adult; occurrenceID: 28EB4C4B-F7E8-5A91-ADE8-9C05A96B6C15; Taxon: genus: Sigara; subgenus: Tropocorixa; specificEpithet: bellula; Location: country: South Korea; stateProvince: Jellanam-do; county: Wando-gun; locality: Sinji-myeon, Sin-ri; verbatimElevation: 6 m; decimalLatitude: 34.328333; decimalLongitude: 126.822222; Event: eventDate: 1 VII 2025; Record Level: institutionCode: JBNU

Distribution

Korea (Gyeonggi-do, Jellanam-do), China (Anhui, Guangxi Zhuang Autonomous Region, Guizhou, Henan, Hubei, Hunan, Inner Mongolia Autonomous Region, Jiangsu, Jiangxi, Ningxia Hui Autonomous Region, Shaanxi, Shanxi, Tianjin, Zhejiang), Japan (Honshu, Kyushu, Tsushima Island), Russia, Taiwan (Hayashi and Miyamoto 2018, Xie et al. 2024).

Sigara (Tropocorixa) formosana

(Matsumura, 1915)

37A79432-EE8B-5A01-8E47-1462C9181CB9

Distribution

Korea (Gyeonggi-do), Japan (Nasei Islands), Taiwan, Vietnam (Lee 1971, Hayashi and Miyamoto 2018, Xie et al. 2024).

Sigara (Tropocorixa) gaginae

Jaczewski, 1960

86EA7F8C-630B-585E-B3F0-00C751E3AA17

Distribution

Korea, China (Anhui, Guizhou Heilongjiang, Hubei, Hunan, Inner Mongolia Autonomous Region, Jiangsu, Jiangxi, Jilin, Liaoning, Zhejiang), Russia (Xie et al. 2024).

Sigara (Tropocorixa) nigroventralis

(Matsumura, 1905)

ECE76DBB-CBF7-5871-9F3D-4C00307092C7

Distribution

Korea (Pyongyang), Japan (Hokkaido, Honshu, Shikoku, Kyushu, Tsushima Island, Nansei Islands), Russia (Far East), Taiwan (Jaczewski 1963, Cho and Kwon 2017, Hayashi and Miyamoto 2018).

Sigara (Tropocorixa) paivai

Lundblad, 1928

6AE973C6-CE1F-5E52-AA8C-62D4CC2A9B14

Distribution

Korea, Sumatra, Thailand, India (Kwon et al. 2001).

Sigara (Tropocorixa) substriata

(Uhler, 1896)

C9A55817-E254-590A-80B3-409F542EA6C8

Distribution

Korea (South: Gangwon-do, Gyeonggi-do, Gyeongsangbuk-do, Gyeongsangnam-do, Jeollabuk-do, Jellanam-do, Jeju-do; North: Pyongyang), China (Heilongjiang, Henan, Zhejiang), Japan (Hokkaido, Honshu, Shikoku, Kyushu), Russia (Far East) (Kwon et al. 2001, Hayashi and Miyamoto 2018, Xie et al. 2024).

Xenocorixa

Hungerford, 1947

DECBCD87-AD87-537A-A32C-6C80B9194D0B

Xenocorixa vittipennis

(Horváth, 1879)

9C96A569-74BF-5D57-9677-69A0D36F35E7

Distribution

Korea (Incheon, Gyeongsangnam-do, Jellanam-do), China (Beijing, Hubei, Shandong, Shanghai, Tianjin, Zhejiang), Japan (Honshu, Shikoku, Kyushu), Taiwan (Hayashi and Miyamoto 2018, Xie et al. 2024).

Cymatiainae

Walton, 1940

31CEEC07-EF1F-58ED-951C-3C133F20C8F4

Cymatia

Flor, 1860

F4C8D778-3461-5094-9A34-EB460919A5ED

Cymatia apparens

(Distant, 1911)

37112751-8647-5589-92A4-5F91299B0DA1

Materials

1. Type status: Other material. Occurrence: recordedBy: C. Lee; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 7F70745C-88C8-5C6A-B2C1-D92D9CF6F61A; Taxon: genus: Cymatia; specificEpithet: apparens; Location: country: South Korea; stateProvince: Gyeongsangnam-do; county: Tongyeong-si; locality: Gwangdo-myeon, Nosan-ri; Event: eventDate: 31 IV 1964; Record Level: institutionCode: NIBR

2. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 23; sex: 11 males, 12 females; lifeStage: adult; occurrenceID: EBD3FA00-632E-5A8F-95D7-493D92EE9A13; Taxon: genus: Cymatia; specificEpithet: apparens; Location: country: South Korea; stateProvince: Gyeongsangbuk-do; county: Ulleung-gun; locality: Buk-myeon, Hyeonpo-ri; verbatimElevation: 192m; decimalLatitude: 37.517156; decimalLongitude: 130.815867; Event: eventDate: 12 VII 2024; Record Level: institutionCode: NIBR

Distribution

Korea (Gyeongsangbuk-do, Gyeongsangnam-do), China (Beijing, Guizhou, Henan, Hubei, Hunan, Inner Mongolia Autonomous Region, Jiangsu, Jiangxi, Shaanxi, Shandong, Shanxi, Tianjin, Zhejiang), India, Japan (Hokkaido, Honshu, Shikoku, Kyushu), Russia (Far East) (Hayashi and Miyamoto 2018, Xie et al. 2024).

Micronectidae

Jaczewski, 1924

E5B36852-C1E4-5A7A-A694-DF81D041B083

Micronectinae

Jaczewski, 1924

1FC39D4E-3574-58CA-9990-0F149530BC4E

Micronecta

Kirkaldy, 1897

3B6FFAFC-1D1B-5C6D-9BDA-A2AAAF0C8319

Basileonecta

Hutchinson, 1940

952F68AE-53A9-5165-9E7C-513543605AB3

Micronecta (Basileonecta) sahlbergii

(Jakovlev, 1881)

397FCC54-EF59-5426-80C3-BD76160A8C9A

Materials

1. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 15; sex: 3 males, 12 females; lifeStage: adult; occurrenceID: A6E485A0-D690-5EE6-9EB6-78C8BFC8F2EF; Taxon: genus: Micronecta; subgenus: Basileonecta; specificEpithet: sahlbergii; Location: country: South Korea; stateProvince: Jeollanam-do; county: Gochang-gun; locality: Buan-myeon, Sudong-ri; verbatimElevation: 84 m; decimalLatitude: 35.537048; decimalLongitude: 126.651914; Event: eventDate: 7 VII 2025; Record Level: institutionCode: JBNU

Distribution

Korea (South: Jeollanam-do; North: Pyongyang), China (Anhui, Guangdong, Guizhou, Hainan, Hebei, Heilongjiang, Henan, Hubei, Hunan, Inner Mongolia Autonomous Region, Jiangsu, Jiangxi, Shandong, Shannxi, Shanxi, Sichuan, Tianjin, Yunnan, Zhejiang), Iran, Japan (Honshu, Shikoku, Kyushu, Nasei Islands), Russia (Far East), Taiwan, Vietnam (Jaczewski 1963, Hayashi and Miyamoto 2018, Xie et al. 2024).

Micronecta (Basileonecta) sedula

Horváth, 1905

8D7FDC2E-6463-504D-A147-EBF20F7EE0FF

Distribution

Korea (South: Chungcheongnam-do, Gyeongsangbuk-do, Jellabuk-do, Jeju-do, North: Pyongyang), China (Anhui, Hubei, Hunan, Inner Mongolia Autonomous Region, Jiangsu, Jiangxi, Tianjin, Zhejiang), Japan (Honshu, Shikoku, Kyushu), Russia (Far East), Vietnam (Jaczewski 1963, Lee and Kwon 1991, Kim 1993, An 1998, Hayashi and Miyamoto 2018, Xie et al. 2024).

Micronecta

Kirkaldy, 1897

E6F0A46E-7FCE-52FE-AA45-4C6CA72C8941

Micronecta (Micronecta) guttata

Matsumura, 1905

FB4CD120-D26F-56B2-B97F-16A8F031A722

Materials

1. Type status: Other material. Occurrence: recordedBy: J. Kim; individualCount: 2; sex: 2 females; lifeStage: adult; occurrenceID: 7F76F09A-9C19-5120-BB15-23CB7E3DBCE8; Taxon: genus: Micronecta; subgenus: Micronecta; specificEpithet: guttata; Location: country: South Korea; stateProvince: Gwangju; county: Buk-gu; locality: Sinyong-dong; verbatimElevation: 19 m; decimalLatitude: 35.217778; decimalLongitude: 126.862222; Record Level: institutionCode: JBNU

Distribution

Korea (Gyeongsangbuk-do, Gwangju), China (Fujian, Guangdong, Guangxi Zhuang Autonomous Region, Inner Mongolia Autonomous Region), Japan (Honshu, Shikoku, Kyushu), Kazakhstan, Mongolia, Russia (Far East, East Siberia), Taiwan (Lee and Kwon 1991, Cho and Kwon 2017, Hayashi and Miyamoto 2018, Xie et al. 2024).