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Ryoichi Takahashi (高橋 良一, Takahashi Ryōichi) (April 6, 1898—July 17, 1963) was a Japanese entomologist. His research focused on hemiptera, including aphids, whiteflies, and scale insects. He published more than 420 articles.

Taxa named after him include:

• Takahashilecanium Kondo, 2005
• Xenolecanium takahashii Kondo, 2005
• Rhachisphora takahashii Martin & Lau, 2011
• Melanaphis takahashii Skvarla et al., 2020
• Aclerda takahashii Kuwana, 1932
• Dicranomyia takahashii Alexander, 1920
• Rhyacobates takahashii Esaki, 1923
• Ormosia takahashii Alexander, 1919
• Aleurotuberculatus takahashii David & Subramaniam, 1976
• Aleyrodes takahashii Ossiannilsson, 1966
• Rhinopsylla takashii Boselli, 1930
• Setaleytodes takahashia Singh, 1933
• Isotomurus takahashii (Yosii, 1940)
• Asterobemisia takahashii Danzig, 1966
• Dialeurolonga takahashi David & Jesudasan, 1989
• Togepsylla takahashii Kuwayama, 1931

References

1. 農業試驗所昆蟲標本館. Taiwan Agricultural Research Institute (in Chinese and English). Government of Taiwan. Retrieved 6 Feb 2022.
2. Ito, S.; Sorin, M. (1963). "A list of insects named in honour of Prof. R. Takahashi". Mushi. 37 (17): 185–190.
3. ^ Kondo, Takumasa; Williams, Michael L.; Gullan, Penny J. (2005). "Taxonomic review of the genus Xenolecanium Takahashi and description of the new genus Takahashilecanium Kondo (Hemiptera: Coccidae; Coccinae, Paralecaniini)". Entomological Science. 8 (1): 116. doi:10.1111/j.1479-8298.2005.00105.x. S2CID 54036079.
4. Martin, Jon H.; Lau, Clive S.K. (2011). "The Hemiptera-Sternorrhyncha (Insecta) of Hong Kong, China—an annotated inventory citing voucher specimens and published records". Zootaxa. 2847 (1): 16. doi:10.11646/zootaxa.2847.1.1.
5. Skvarla, Michael; Kramer, Matthew; Owen, Christopher; Miller, Gary (2020). "Reexamination of Rhopalosiphum (Hemiptera: Aphididae) using linear discriminant analysis to determine the validity of synonymized species, with some new synonymies and distribution data". Biodiversity Data Journal. 8: e49102. doi:10.3897/BDJ.8.e49102. PMC 6997245. PMID 32042252.
6. Kuwana, Inokichi (1932). "The Genus Aclerda in Japan, including Formosa" (PDF). The Philippine Journal of Science. 48 (1): 64.
7. Alexander, Charles P. (1920). "New or Little-Known Crane-Flies from Japan (Tipulidae, Diptera)". Transactions of the American Entomological Society. 46 (1): 2. JSTOR 25077024.
8. Esaki, Teiso (1923). "An interesting new water-strider from Formosa". The Philippine Journal of Science. 22 (4): 387–391, Pl. 1.
9. Alexander, Charles P. (1919). "Undescribed Species of Japanese Crane-Flies. (Tipulidæ, Diptera)". Annals of the Entomological Society of America. 12 (4): 337–338. doi:10.1093/aesa/12.4.327.
10. David, B. Vasantharaj; Subramaniam, T. R. (1976). "Studies on Some Indian Aleyrodidae" (PDF). Record of the Zoological Survey of India. 70: 174–175.
11. Ossiannilsson, Frej (1966). "A new name in the Aleyrodidae (Hem.)". Opuscula Entomologica. 31: 155.
12. Singh, Karam (1933). "On four new Rhynchota of the family Aleyrodidae from Burma". Records of the Indian Museum. 35: 344–345.
13. Dantsig, Ye. M. (1966). К фауне алейродид (Homoptera, Aleyrodoidea) южного Приморья [The whiteflies (Homoptera, Aleyrodoidea) of the southern Primor'ye (Soviet Far East)]. Энтомологическое обозрение. 45: 376–377.
14. David, B. Vasantharaj; Jesudasan, R. W. Alexander (1989). "Dialeurolonga maculata (Singh) comb. nov. and Dialeurolonga takahashi nom. nov. for Dialeurolonga maculata Takahashi (Aleyrodidae: Homoptera) from Madagascar". Entomon. 14: 371. ISSN 0377-9335.
15. Kuwayama, Satoru (1931). "A Revision of the Psyllidae of Taiwan". Insecta Matsumurana. 5 (3): 121–122. hdl:2115/9213.

Further reading

• "Dr. Ryoichi Takahashi (1898–1963)". Aphidologists' Newsletter. 3 (3). 1964.
• Hasegawa, Hitoshi (1967). 明治以降物故昆虫学関係者経歴資料集 [Materials on the lives and contributions of the deceased Japanese entomologists since the Meiji Era]. Kontyû (in Japanese). 35 (3, Suppl): 49–50. Archived (PDF) from the original on 6 Feb 2022.
• Ito, S.; Sorin, M. (1963). "List of Papers of Dr. Ryoichi Takahashi". Mushi. 37 (17): 167–190.
• Kuwayama, Satoru (1963). 高橋良一博士を悼む [Mourning Dr. Ryoichi Takahashi]. Japanese Journal of Applied Entomology and Zoology. 7 (4): 358–359.
• Minagawa, Y. (1963). 高橋良一博士を偲びて [In remembrance of Dr. Ryoichi Takahashi]. Kontyû (in Japanese). 31 (3): 230–231. Archived (PDF) from the original on 29 July 2021.
• Sartiami, Dewi; Watson, Gillian W.; Roff, Mohamad N. M.; Ghani, Idris A. B. (2017). "A taxonomic update of Takahashi's historic collection of mealybugs (Hemiptera: Pseudococcidae) from Malaysia And Singapore" (PDF). Serangga. 22 (2): 91–114. ISSN 1394-5130. Archived from the original (PDF) on 1 Jul 2020.
• Takahashi, R. (1957). わが10代を語る. Shin konchū 新昆虫. 10 (2): 18–19.
• Williams, Douglas J. (2017). "The change of depository of a collection of scale insects by Ryoichi Takahashi (Hemiptera: Sternorrhyncha: Coccomorpha)". Zootaxa. 4358 (3): 598–600. doi:10.11646/zootaxa.4358.3.13. PMID 29245466.

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