• Animal Systematics, Evolution and Diversity
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• 제39권3호
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• pp.77-85
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• 2023

Five species of South Korean species of the genus Triclistus Förster, 1869 are newly discovered; Triclistus crassus Townes & Townes, 1959, T. mimerastriae Kusigemati, 1971, T. nigrifemoralis Kusigemati, 1971, T. planus Momoi & Kusigemati, 1970, and T. uchidai Kusigemati, 1971. We report those five species of Triclistus herein. Diagnoses, photographs of newly recorded species of this genus, and key to South Korean Triclistus are provided.

• Animal Systematics, Evolution and Diversity
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• 제39권3호
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• pp.114-117
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• 2023

The genus Opius Wesmael, 1835 (Hymenoptera: Braconidae: Opiinae) generally parasitizes larvae of Agromyzidae, Anthomyiidae, Drosophilidae, Tephritidae, Ephydridae and Cecidomyiidae, of which 32 species are recorded in South Korea. In China, seven new species of the genus Opius have been known. Among them, Opius crenuliferus Li & van Achterberg, 2013 is reported for the first time in South Korea. Specimen was collected by sweeping in West Daeshin-dong, Busan, Korea. In this study, description, and diagnostic illustration of O. crenuliferus are provided.

• Animal Systematics, Evolution and Diversity
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• 제39권4호
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• pp.160-168
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• 2023

As a result of investigating biodiversity of lepidopteran fauna in Korea, six species of moths within five families are reported for the first time: Bucculatrix splendida Seksjaeva (Bucculatricidae), Caloptilia isochrysa (Meyrick) (Gracillariidae), Depressaria spectrocentra Meyrick (Depressariidae), Sergeya temulenta (Omelko) (Gelechiidae), Thiotricha attenuata Omelko (Gelechiidae) and Philenora latifasciata Inoue & Kobayashi (Erebidae). Among them, Philenora Rosenstock, 1885 and Sergeya Ponomarenko, 2007 are newly recorded genera for the country. The diagnoses, redescriptions, photographs of adult and genitalia, and DNA barcode information are provided in this study.

• Animal Systematics, Evolution and Diversity
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• 제39권4호
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• pp.319-321
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• 2023

We report a zygaenid moth, Inope heterogyna Staudinger for the first time from Korea. This species which shows the dark brown wings without medial lines and markings, is externally indistinguishable from Inope maerens and the correct identification can be done by the genitalia examination. The female genitalia of Inope heterogyna can be distinguished by the relatively short and strongly coiled at the anterior ductus bursae.

• Bulletin of the Korean Chemical Society
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• 제26권11호
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• pp.1682-1688
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• 2005

Using the ASED-MO (Atom Superposition and Electron Delocalization-Molecular Orbital) theory, we investigated carbon formation and carbon hydrogenation for $CO_2$ methanation on the Ni (111) surface. For carbon formation mechanism, we calculated the following activation energies, 1.27 eV for $CO_2$ dissociation, 2.97 eV for the CO, 1.93 eV for 2CO dissociation, respectively. For carbon methanation mechanism, we also calculated the following activation energies, 0.72 eV for methylidyne, 0.52 eV for methylene and 0.50 eV for methane, respectively. We found that the calculated activation energy of CO dissociation is higher than that of 2CO dissociation on the clean surface and base on these results that the CO dissociation step are the ratedetermining of the process. The C-H bond lengths of $CH_4$ the intermediate complex are 1.21 $\AA$, 1.31 $\AA$ for the C${\cdot}{\cdot}{\cdot}H_{(1)}$, and 2.82 $\AA$ for the height, with angles of 105${^{\circ}}$ for ∠ $H_{(1)}$CH and 98${^{\circ}}$ for $H_{(1)} CH _{(1)}$.

• Bulletin of the Korean Chemical Society
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• 제25권9호
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• pp.1314-1320
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• 2004

The adsorption and configuration of CO molecules adsorbed on W (110) and W (100) surfaces have been calculated by the atomic superposition and electron delocalization molecular orbital (ASED-MO) method. Referred to as the ASED-MO method, it has been used in the present study to calculate the geometries, binding energies, vibrational frequencies, orbital energies, reduced overlap population (ROP), and charges. From these results adsorption properties of ${\alpha}$-state and ${\beta}$-state were deduced. The calculated binding energies are in good agreement with the experimental result. On the W (110), the calculated average binding energies are 2.56 eV for the end-on configuration and 3.20 eV for the lying-down configuration. Calculated vibrational frequency is 1927 $cm^{-1}$ at a 1-fold site and 1161 $cm^{-1}$ at a long-bridge (2) site. These results are in reasonable agreement with experimental values. On the W(100) surface, calculated average binding energies of the end-on and the lying-down are 2.54 eV and 4.02 eV respectively. The differences for binding energy and configuration on the surfaces are explained on the basis of surface-atom coordination and atom-atom spacing. In the favored lyingdown CO configuration on the W(110) and W(100) surfaces, 4 ${\sigma}$ and 1 ${\pi}$ donation interactions, coupled with the familiar 5 ${\sigma}$ donation to the surfaces and back-donations to the CO 2 ${\pi}^{\ast}$ orbital, are responsible for adsorption to the surface.

• Animal Systematics, Evolution and Diversity
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• 제29권1호
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• pp.36-50
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• 2013

As one of the serial faunistic studies on the brackish cyclopoids from Korea, taxonomic accounts of three species of Halicyclops from various brackish waters in South Korea are provided, with detailed illustrations of them: H. uncus Ueda and Nagai, 2009, H. setiformis Ueda and Nagai, 2012, and H. itohi Ueda and Nagai, 2012. Halicyclops uncus is newly recorded from Korea, and the latter two species are corrected from H. sinensis sensu Chang, 2009 and H. cf. rotundipes sensu Chang, 2009, respectively. As a result, a total of seven species of the genus are now recognized in Korea, and a revised key to the species is presented.

• Animal Systematics, Evolution and Diversity
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• 제29권1호
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• pp.70-73
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• 2013

Diadegma fenestrale is known as a parasitoid of the potato tuber moth, Phthorimaea operculella. The potato tuber moth, Phthorimaea operculella (Zeller) is one of the most destructive pest of potatoes. Also, we found this species attacking the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae). Ratio of parasitism is 20-30% and cocoon of lepidopteran was parasitic ichneumonid species after 3 days. This species and the genus Diadegma are recorded for the first time from Korea. In this paper, description of the parasitoid and photographs of the diagnostic characteristics are provided.

• Animal Systematics, Evolution and Diversity
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• 제29권1호
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• pp.56-69
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• 2013

A preliminary list of the following four tephritoid families is provided including 30 Korean species, of which 12 are new to Korea: two Lonchaeidae, three Pallopteridae (two new to Korea), 17 Platystomatidae (two new to Korea), and eight Ulidiidae (all new to Korea). This list is mainly based on the insect collection at the Yonsei University Wonju Campus and on previous publications concerning these taxa. Although a full taxonomic revision for each family is required in the long term, this preliminary list will provide a useful starting point to further investigation of these families. For the other three tephritoid families known in Korea but not treated in the present study, 89 species of Tephritidae, 14 species of Pyrgotidae, and one species of the rare family Ctenostylidae have been reported previously. A total of 134 species in seven families are officially recognized for the Korean fauna of the superfamily Tephritoidea.

• Animal Systematics, Evolution and Diversity
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• 제29권1호
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• pp.84-91
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• 2013

Two species of the hippolytid shrimps, Lebbeus speciosus and Lebbeus comanthi, are described and illustrated for the first time in Korea. They were collected from the East Sea. Lebbeus speciosus was found in a scallop farm of Jumunjin, Gangneung, and L. comanthi associated with crinoids, was found in Gampo, Gyeongju. The difference between these two related species is in the number of dorsal teeth of the rostrum, five teeth in L. speciosus and a single tooth in L. comanthi. The Korean Lebbeus species has increased to 6 species by the present report. They are L. grandimana, L. polaris, L. unalaskensis, L. groenlandicus, L. speciosus, and L. comanthi.