Contributions to the knowledge of Thysanoptera (Insecta) from Japan Author Masumoto, Masami 0000-0001-9049-2448 Laboratory of Entomology, Tokyo University of Agriculture, 1737 Funako, Atsugi, Kanagawa, 243 - 0034 Japan. & masumotoms @ gmail. com; https: // orcid. org / 0000 - 0001 - 9049 - 2448 masumotoms@gmail.com Author Okajima, Shûji Laboratory of Entomology, Tokyo University of Agriculture, 1737 Funako, Atsugi, Kanagawa, 243 - 0034 Japan. & 7 okajimas 2 @ gmail. com text Zootaxa 2021 2021-05-17 4970 3 593 596 journal article 6267 10.11646/zootaxa.4970.3.11 71d234ed-3258-4023-8347-cd621c71f14c 1175-5326 4766676 1B12304A-6173-4F1D-A001-3F962764C7D8 Chirothrips watanabei Ishida Specimens examined . Japan , Hokkaido : Abashiri-shi, Misaki, 7 females on Poaceae , 10.viii.2006 , T. Nonaka. Rishiri Is., Rishirifuji-machi, Minamihara, 29 females on Phragmites australis [ Poaceae ], 16.iii.2013 , T. Yasuoka. Notes . This species was described from Poaceae in Sakhalin. It is very similar to C. manicatus (Haliday) but it can be distinguished from the latter species by having antennal segment II not strongly produced.