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New Stigmaeopsis species on Miscanthus grasses in Taiwan and Thailand (Acari, Tetranychidae)

Yutaka Saito, Yukie Sato, Manita Kongchuensin, Jung-Tai Chao, Ken Sahara


We described two new species collected from Miscanthus spp. in Thailand and Taiwan. One of the new species, Stigmaeopsis inthanonsis Saito, Kongchuensin & Sahara n. sp., was found in Thailand (Inthanon National Park). The other species from Taiwan, named Stigmaeopsis formosa Saito, Chao & Sato n. sp. was previously referred to as T-form or ML form of Stigmaeopsis miscanthi (Saito). Thus 15 species are now involved in the genus Stigmaeopsis. Because five species inhabiting Miscanthus grasses are resemble together, we call them as Stigmaeopsis miscanthi species group. An updated key to all known species of Stigmaeopsis is proposed.


Stigmaeopsis inthanonsis, Stigmaeopsis formosa, Stigmaeopsis miscanthi species group


Saito, Y. (1983) The concept of "life types" in Tetranychinae. An attempt to classify the spinning behaviour of Tetranychinae. Acarologia, 24, 377–391.

Saito, Y. & Osakabe, Mh. (1992) A new fixation method for preparing mite specimens for optical and SEM microscopic observations. Applied Entomology and Zoology, 27, 427–436.

Saito, Y., Osakabe, Mh., Sakagami, Y. & Yasui, Y. (1993) A method for preparing permanent specimens of mites with Canada balsam. Applied Entomology and Zoology, 28, 593–597.

Saito, Y., Zhang, Y.-X., Mori, K., Ito, K., Sato, Y., Chittenden, A. R., Lin, J.-Z., Chae, Y., Sakagami, T. & Sa-hara, K. (2016) Variation in nesting behavior of eight species of spider mites, Stigmaeopsis having sociality. Science of Nature, 103, 87.

Saito, Y., Sato, Y., Chittenden, A. R., Lin, J.-Z. & Zhang, Y.-X. (2018) Description of two new species of Stigmaeopsis, Banks 1917 (Acari, Tetranychidae) inhabiting Miscanthus grasses (Poaceae). Acarologia, 58, 414–429.

Sakamoto, H., Matsuda, T., Suzuki, R., Saito, Y., Lin, J.-Z., Zhang, Y.-X., Sato, Y. & Gotoh, T. (2017) Molecular identification of seven species of the genus Stigmaeopsis (Acari: Tetranychidae) and preliminary attempts to establish their phylogenetic relationship. Systematic and Applied Acarology, 22, 91–101.

Sato, Y. , Egas, M., Sabelis, M.W. & Mochizuki, A. (2013) Male-male aggression peaks at intermediate relatedness in a social spider mite. Ecology and Evolution, 3, 2661–2669.

Sato, Y., Sakamoto, H., Gotoh, T., Saito, Y., Chao, J.-T., Egas, M. & Mochizuki, A. (2018) Patterns of reproductive isolation in a haplodiploid – strong post-mating, prezygotic barriers among three forms of a social spider mite. Journal of Evolutionary Biology, 31, 866–881.

Sato, Y., Tsuda, Y. Sakamoto, H., Egas, M., Gotoh, T. Saito, Y., Zhang, Y.-X., Lin, J.-Z, Chao, J.-T. & Mochiz-uki, A. (2019) Phylogeography of lethal male fight in a social spider mite. Ecology and Evolution, 9, 1590–1602.



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An international journal of the Systematic and Applied Acarology Society

ISSN 1362-1971