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Type: Article
Published: 2022-05-18
Page range: 339-346
Abstract views: 683
PDF downloaded: 18

First report of the genus Thirumalaia Zettel & Laciny, 2021 (Hemiptera: Veliidae) in the Ryukyu Islands, Japan, with the description of a new species

NIDEK Co., Ltd., Gamagôri, Aichi, Japan. Corresponding author. Ryosuke Matsushima, NIDEK Co., Ltd., 34–14 Maehama, Hiroishi-cho, Gamagôri, Aichi 443–0038, Japan
Hemiptera immature stage Japan Microveliinae semiaquatic bugs small water striders taxonomy Thirumalaia Thirumalaia kaara Veliidae


The genus Thirumalaia Zettel & Laciny, 2021 (Veliidae: Microveliinae) was recently established with one Indian species. Here, a new species, T. kaara sp. nov., from Ishigaki-jima Island and Iriomote-jima Island, Ryukyu, Japan is described. Additionally, the distribution of the genus is updated and laboratory rearing information of the immature stages of T. kaara sp. nov. are provided.



  1. Andersen, N.M. (1982) The semiaquatic bugs (Hemiptera, Gerromorpha). Phylogeny, adaptations, biogeography, and classification. Entomonograph, 3, 1–455.
    Don, A.W. (1967) Aspects of the biology of Microvelia macgregori Kirkaldy (Heteroptera: Veliidae). Proceedings of the Royal Entomological Society of London. Series A, General Entomology, 42, 171–179.
    Hayashi, M. & Miyamoto, S. (2018) Hemiptera. In: Kawai, T. & Tanida, K. (Eds.), Aquatic Insects of Japan: Manual with Keys and Illustrations. 2nd Edition. Tokai University Press, Kanagawa, pp. 329–427.
    Hoffmann, W.E. (1925) Some aquatic Hemiptera having only four nymphal stages. Bulletin of the Brooklyn Entomological Society, 20, 93–94.
    Matsushima, R., Morii, T., Hiraishi, N. & Ohba, S. (2021) A new species of small water strider in the genus Microvelia (Hemiptera: Heteroptera: Veliidae) from Aichi Prefecture, Honshu, Japan. Zoological Science, 38 (6), 565–571.
    Muraji, M. & Nakasuji, F. (1988) Comparative studies on life history traits of three wing dimorphic water bugs, Microvelia spp. Westwood (Heteroptera: Veliidae). Researches on Population Ecology, 30, 315–327.
    Nakajima, J., Hayashi, M., Ishida, K., Kitano, T. & Yoshitomi, H. (2020) Aquatic Coleoptera and Hemiptera of Japan. Bun-ichi Co. Ltd., Tokyo, 351 pp.
    Polhemus, J.T. & Polhemus, D.A. (2008) Global diversity of true bugs (Heteroptera; Insecta) in freshwater. Hydrobiologia, 595, 379–391.
    Torre-Bueno, J.R. de la (1917) Life history of the northern Microvelia –Microvelia borealis Bueno (Hem., Het.). Entomological News, 28, 354–359.
    Ye, Z., Polhemus, D.A. & Bu, W. (2014a) First record of the genus Baptista Distant, 1903 (Heteroptera: Veliidae) from China, with descriptions of two new species. Zootaxa, 3811 (3), 301–315.
    Ye, Z., Chen, P. & Bu, W. (2014b) First record of the genus Geovelia Zimmermann 1984 (Hemiptera: Heteroptera: Veliidae) from China, with description of a new species. The Pan-pacific Entomologist, 90 (1), 16–22.
    Zettel, H. (2004) Baptista hoedli sp. nov. (Insecta: Heteroptera: Veliidae) from Laos, and definition of the B. collaris species group. Annalen des Naturhistorischen Museums in Wien, Series B, 105, 441–445.
    Zettel, H. & Laciny, A. (2021) The taxonomy of some unusual Microveliinae (Hemiptera: Heteroptera: Veliidae) from India. Acta Entomologica Musei Nationalis Pragae, 61 (2), 517–527.
    Zettel, H., Laciny, A. & Tran, A.D. (2021) Hispidovelia gen. n. (Hemiptera: Heteroptera: Veliidae) from Southeast Asia. Zeitschrift der Arbeitsgemeinschaft Österreichischer Entomologen, 73, 157–163.
    Zimmermann, G. (1984) Heteroptera aus dem Nepal-Himalaya. Geovelia n. gen., eine Gattung terrestrischer Microveliinae (Insecta: Gerromorpha: Veliidae). Senckenbergiana Biologica, 65 (1/2), 65–74.