Faculty Profiles - SAKAMAKI Yositaka

Papers - SAKAMAKI Yositaka

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Yuki KITAJIMA and Yositaka SAKAMAKI . Taxonomic revision of the genus Meleonoma Meyrick (Lepidoptera: Oecophoridae) from Japan, part III . Lepidoptera Science77 57 - 72 2026.1Reviewed

Haruka Morimoto and Yositaka Sakamaki . Seasonal abundance and damage assessment of the cotton jassid, Amrasca biguttula, in eggplant fields planted with okra . Kyushu plant protection research71 70 - 81 2025.11Reviewed

Shin-ichi Yoshimatsu, Yositaka Sakamaki, Eri Tanaka and Daisuke Sakai . Moths Collected with Sex Pheromone Traps for Tomato Leaf Miner, Tuta absoluta, in Japan during 2022 to 2023 with Taxonomic Notes on Its Close Relative Phthorimaea operculella（Lepidoptera, Gelechiidae） . Japanese Journal of Applied Entomology and Zoology69 ( 2 ) 53 - 63 2025.5Reviewed

Yui Takahashi, Hiroaki Aiba and Yositaka Sakamaki . Agalope oshikirii n. sp., the first chalcosiine fossil (Lepidoptera, Zygaenidae) from Akita Prefecture, Japan . Journal of Paleontology99 ( 1 ) 128 - 134 2025.5Reviewed

Daisuke SAKAI, Yositaka SAKAMAKI . Discrimination of larvae of the tomato leaf miner, Tuta absoluta, from other gelechiid larvae attacking solanaceous plants in Japan (Lepidoptera: Gelechiidae) . Lepidoptera Science76 ( 1 ) 31 - 41 2025.1

Mitsuki Kurahashi, Yositaka Sakamaki*, Katsuo Tsuda, Yuuki Ikenoue, Kazuki Kakimoto, Satoru Abe and Kazuro Ohno . Cross pathogenicity of Metarhizium rileyi isolates from Spodoptera frugiperda or Spodoptera litura against both host species (Lepidoptera: Noctuidae) . Japanese Journal of Applied Entomology and Zoology68 ( 1 ) 17 - 24 2024.2Reviewed

Hiroaki Aiba, Yui Takahashi and Yositaka Sakamaki . A new species of fossil Nymphalidae (Lepidoptera, Papilionoidea) from the Upper Pliocene Motojuku Group, Gunma Prefecture, Japan . Paleontological Research27 ( 4 ) 441 - 450 2023.10Reviewed

Shizuma Yanagisawa, Yositaka Sakamaki, Sopark Jantarit and Satoshi Shimano . A New Species of the Genus Eucorydia (Blattodea: Corydiidae) from Chiang Mai in Northern Thailand . Species Diversity26 191 - 195 2021.8Reviewed International coauthorship

Shizuma Yanagisawa, Shimpei F. Hiruta, Yositaka Sakamaki and Satoshi Shimano . A New Species of the Genus Eucorydia (Blattodea: Corydiidae) from the Miyako-jima Island in Southwest Japan . Species Diversity26 145 - 151 2021.6Reviewed International coauthorship

Shizuma Yanagisawa, Shimpei F. Hiruta, Yositaka Sakamaki, Jhih-Rong Liao and Satoshi Shimano . Two New Species of the Genus Eucorydia (Blattodea: Corydiidae) from the Nansei Islands in Southwest Japan . Zoological Science38 ( 1 ) 90 - 102 2021.2International coauthorship

坂巻祥孝*・東正志・辻本悟志・長田聖哉 . 外来昆虫ソテツシロカイガラムシによる奄美大島・沖縄島のソテツの危機 . 農業および園芸101 ( 3 ) 205 - 210 2026.3Invited

KITAJIMA Yuki, SAKAMAKI Yositaka . Taxonomic revision of the genus Meleonoma Meyrick (Lepidoptera: Oecophoridae) from Japan, part III . Lepidoptera Science77 ( 1 ) 57 - 72 2026.1Reviewed International coauthorship

Authorship：Lead author,　Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：THE LEPIDOPTEROLOGICAL SOCIETY OF JAPAN

In the third part of this study on the genus Meleonoma Meyrick in the family Oecophoridae, four species are treated. Two of them are new species (Meleonoma tsushimaensis sp. nov., M. yaeyamaensis sp. nov.), and one species (M. robustispina Wang, 2020) treated as M. sp. 4 in Kitajima and Sakamaki (2021), is a newly recorded species from Japan. The female genitalia of M. robustispina Wang are described here for the first time. In this part, adult specimens of these species, their wing venations, and male and female genitalia are illustrated in detail. Since Part I of this study (Kitajima and Sakamaki, 2020) dealt with eight species, Part II (Kitajima and Sakamaki, 2021) with seven species, except for M. robustispina (treated as M. sp. 4), and this part deals with four species, the total number of Meleonoma species from Japan consists of 19 species. A taxonomic key for these 19 species was presented in this part.

DOI： 10.18984/lepid.77.1_57

CiNii Research

酒井大輔・坂巻祥孝 . トマトキバガと近縁種（ジャガイモキバガ，ヒヨドリジョウゴキバガ）の形態的識別（チョウ目：キバガ科） . 植物防疫79 ( 4 ) 230 - 237 2025.4

Sakamaki Yositaka, Ikenoue Yuuki . Natural Enemies of the Fall Armyworm, Spodoptera frugiperda, in Japan . Japanese Journal of Grassland Science70 ( 4 ) 193 - 198 2025.1Reviewed International coauthorship

Tsujimoto Satoshi, Kameyama Norikazu, Kubo Shuntaro, Yamashiro Masaru, Takayama Shingo, Yoshimoto Mitsuru, Kawaguchi Eriko, Sakamaki Yoshitaka . Infestation of Cycas revoluta by the exotic scale insect Aulacaspis yasumatsui and its chemical control in Okinawa Island, Japan . Tree and Forest Health28 ( 3 ) 147 - 151 2024.7Reviewed International coauthorship

Authorship：Lead author,　Last author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Tree Health Research Society, Japan

Following an earlier report of an infestation in Amami Island, Japan, the exotic scale insect Aulacaspis yasumatsui was confirmed to attack Cycas revoluta in Okinawa Island, Japan. Plants damaged by A. yasumatsui were localized in two adjacent villages in the northern part of Okinawa Island, far from the island's main port facilities. The damaged area was localized compared with the earlier infestation in Amami Island. Interviews with a resident and a facility manager revealed that damage had become visible in 2020 and 2021. Two months after the application of an insecticide spray, there was no sign of new leaves being attacked and no abnormalities were visible in all previously attacked plants. Chemical control and the removal of damaged leaves are labor-intensive procedures; therefore, control methods that are easier to undertake need to be established.

DOI： 10.18938/treeforesthealth.28.3_147

CiNii Research

Kawaguchi Eriko, Yonemori Shogo, Sakamaki Yositaka, Takagi Sadao . Identification of Aulacaspis yasumatsui found on Amami-Oshima Island and its damage to Cycas revoluta . Tree and Forest Health28 ( 1 ) 3 - 9 2024.1Reviewed International coauthorship

Authorship：Lead author,　Last author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Tree Health Research Society, Japan

In 2022, mass yellowing of Cycas revoluta leaves caused by a scale occurred on Amami-Oshima Island. We identified the scale as Aulacaspis yasumatsui, a worldwide cycad pest. The occurrence was reported as the first record of the A. yasumatsui in Japan. In this paper, we report on the identification details and the survey on the distribution and damage in the Amami Islands. We identified the scale based on its morphological characteristics and then confirmed the identification based on its nucleotide sequences of COI and COII regions of mitochondrial DNA. The nucleotide sequence of COI barcode region (630 bp) in our sample from Amami-Oshima Island is 100% identical to that from Fujian Province in China previously reported. The scale was found in Amami City, Tatsugo Town, Yamato Village and Uken Village. In C. revoluta, where this scale occurs, the leaves ranged from those with no yellowing to those with all leaves yellowed. Severe damage, such as yellowing of all the leaves, and mass yellowing was concentrated in near the Naze Port in Amami City.

DOI： 10.18938/treeforesthealth.28.1_3

CiNii Research

Eriko Kawaguchi, Shogo Yonemori, 2, Yositaka Sakamaki and Sadao Takagi . Identification of Aulacaspis yasumatsui found in Amami-Oshima Island and its damage on Cycas revoluta. . Tree and Forest Health28 ( 1 ) 3 - 9 2024.1Reviewed

Infestation of Cycas revoluta by the exotic scale insect Aulacaspis yasumatsui and its chemical control in Okinawa Island, Japan . Tree and Forest Health28 ( 1 ) 147 - 151 2024.1Reviewed

OKU Johei, TOMURA Shunsuke, YAGI Sadahisa, HIROWATARI Toshiya, SAKAMAKI Yositaka . Megacraspedus coleophorodes (Li and Zheng, 1995) (Gelechioidea, Gelechiidae) new to Japan . Lepidoptera Science74 ( 3 ) 55 - 58 2023.9Reviewed International coauthorship

Authorship：Lead author,　Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：THE LEPIDOPTEROLOGICAL SOCIETY OF JAPAN

Megacraspedus coleophorodes (Li and Zheng, 1995) is a gelechiid moths and was known to be distributed in Korea and China. In the present study, this species was discovered in Japan for the first time and the genus Megacraspedus Zeller, 1839 is also reported for the first time from Japan.

DOI： 10.18984/lepid.74.3_55

CiNii Research

Johei Oku, Shunsuke Tomura, Sadahisa Yagi, Toshiya Hirowatari, Yositaka Sakamaki . Megacraspedus coleophorodes (Li and Zheng, 1995) (Gelechioidea, Gelechiidae) new to Japan . Lepidoptera Science74 ( 3 ) 55 - 58 2023.9Reviewed

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Papers - SAKAMAKI Yositaka