The family Hydropsychidae Curtis (Trichoptera) in the Ryukyu Archipelago, southwestern Japan Author Ito, Tomiko Author Nozaki, Takao text Zootaxa 2018 2018-10-26 4504 4 545 565 journal article 28064 10.11646/zootaxa.4504.4.6 e597b10d-8e4e-4ffa-8d36-87454b4b35b9 1175-5326 2606666 FA17234E-046E-4165-BEB9-305195E7FD0C Hydropsyche orientalis Martynov 1934 Hydropsyche orientalis Martynov 1934 , 276–277, fig. 198, male, Russia (Primorye); Tanida 1986 , 468–473, fig. 1, male, female, larva, Hokkaido, Honshu, Shikoku, Kyushu, Amami-o-shima, Okinawa-jima; Tanida 1997 , 447; Shimura et al . 2014 , 43, 55, Amami-o-shima; Kuhara and Ito 2017 , 14, 15, Yakushima. Specimens examined . Amami-o-shima : 14 females , Uken-son, Kogachi-gawa, fall, 19.iii.1999 , TI & AO, L; 4 females , Uken-son, Kawaguchi-gawa, 50 m a.s.l. , 26.iii.2007 , TI , L; 12 females , same locality, 20.x.2014 , TI , L; 2 females , Uken-son, 6–8.v.1998 , H. Moriya; 1 male , 25 females , Amami-shi, Setouchi, Yakugachi-gawa, middle reach, 5.v.2008 , TI , L & S; 14 females , Yamato-son, Materia-gawa, 21.x.2014 , TI , L; 1 female , Yamato-son, Yamato-hama, Yamato-gawa, upper reach, 15.v.2014 , K. Tojo et al ., L; 1 female , Sumiyo-cho, Yakugachi, Yakugachi-gawa, 15.v.2014 , K. Tojo et al ., L. Okinawa-jima : 2 females , Nago-shi, Genka, 9.x.2008 , H. Moriya; 2 males , 26 females , Nago-shi, Genka-gawa, near Hogen-hashi, 22–24.xi.2010 , TI , L & P; 16 females , same locality, 8.iv.2011 , TI , L & P; 1 male , 28 females , same locality, 17–18.x.2014 , TI , P & S; 2 females , Nago-shi, Genkagawa, 40 m a.s.l. , 16.iii.2012 , TI , L & P; 1 male , 11 females , Kunigami-son, Yona-gawa, Nakafukuji-bashi, 23.xi.2010 , TI , P; 2 females , same locality, 18.x.2014 , TI , L; 4 females , Kunigami-son, Yona, Sukuna-gawa, 21.iii.1999 , TI & AO, L; 2 females , Kunigami-son, Yona, Hiji-gawa, upper reach, 9.iv.2011 , TI , L. Kume-jima : 5 males , 8 females , Shirase Dam, 14.iii.1998 , M. Maruyama. Distribution . Japan : Ryukyu (Yakushima, Amami-o-shima, Okinawa-jima, Kume-jima), Hokkaido , Honshu, Shikoku, Kyushu. Continental parts of the Far East Asia . Remarks . This species is one of the most abundant caddisflies in Far East Asia including Japan and also is common in northern and central Ryukyu. Japanese name . Urumâ-shima-tobikera.