A catalogue of Japanese Trichoptera
Family Ecnomidae Ulmer

Author: Naotoshi KUHARA
E-mail: naotoshi.kuhara[AT]nifty.com
Last updated: 6 Sept. 2024

Only the genus Ecnomus is known from Japan.

Genus Ecnomus McLachlan

Five species have been recorded from Japan.

Ecnomus hokkaidensis Kuhara 2016

Ecnomus hokkaidensis Kuhara 2016, 561-564, male, female, Hokkaido (Kushiro, Soya, Rumoi, Ishikari).
Kuhara 2018, 558-559, male, female.
Type locality. Hokkaido (Ishikari), Japan.
Distribution. Japan (Hokkaido).

Ecnomus japonicus Fischer 1970

Ecnomus serrata Kobayashi 1959, 347-348, male, Kyushu (Fukuoka). Renamed by Fischer (1970) due to preoccupancy by Ecnomus serratus Ulmer, 1930.
Ecnomus japonicus Fischer 1970, 242, replacement name for Ecnomus serrata Kobayashi.
Katsuma 2011b, 37, Honshu (Ibaraki).
Morita 2011, 215, Honshu (Mie).
Kawase and Morita 2014, 5, Honshu (Shiga).
Kuhara 2016, 566-568, male, female, Hokkaido (Rumoi), Honshu (Ibaraki, Kanagawa, Mie, Shiga, Kyoto), Shikoku (Tokushima, Kochi), Kyushu (Fukuoka), Tsushima.
Nozaki 2016, 75, 343-344, 434, 450, male, Shikoku (Kochi).
Tanida 2016, 89.
Kuhara 2018, 558-559, male, female.
Higuchi 2024, 25, Honshu (Ishikawa).
Nojima 2024, 8, Honshu (Okayama).
Type locality. Kyushu (Fukuoka), Japan.
Distribution. Japan (Hokkaido, Honshu, Shikoku, Kyushu, Tsushima), Korea, Russian Far East (Khabarovsk and Primorye Territories).

Ecnomus sakishimensis Kuhara 2016

Ecnomus sakishimensis Kuhara 2016, 568-570, male, female, Ryukyu (Iriomote-jima, Ishigaki-jima).
Kuhara 2018, 558-559, male, female.
Type locality. Ryukyu (Iriomote-jima), Japan.
Distribution. Japan (Ryukyu (Yaeyama)).

Ecnomus tenellus (Rambur 1842)

Philopotamus tenellus Rambur 1842, 503, adult.
Ecnomus tenellus: Iwata 1927, 234, pl. 8, larva, Honshu (Shiga).
Tanida 1985, 174-175, larva.
Gyotoku and Nozaki 1991, 74, Kyushu (Fukuoka).
Nishino and Tanida 1992, 30, adult, Honshu (Shiga).
Kuranishi and Kuhara 1994, 1226, Hokkaido (Kushiro).
Tanida 1997, 447 Yaeyama-shoto.
Morita 1998, 72, Honshu (Mie).
Ito et al 1999, 25-27, Hokkaido (Kushiro).
Ito et al 2000a, 23, Hokkaido (Ishikari).
Ito et al 2000b, 28-29, 31, Hokkaido (Soya).
Kuhara et al. 2000, 245, Hokkaido (Ishikari, Iburi)
Kuhara and Satô 2001, 64, Rishiri-to.
Nagayasu et al. 2003, 106, Hokkaido (Ishikari).
Ito et al 2004, 10, Hokkaido (Kushiro).
Kawase et al. 2004, 112, Honshu (Ibaraki).
Uenishi and Yoshitaka 2004, 17, Honshu (Okayama).
Katsuma 2005, 5, Honshu (Ibaraki).
Nagayasu et al. 2005, 52, Hokkaido (Ishikari).
Katsuma 2006, 41, Honshu (Ibaraki).
Torii and Hattori 2006, 37, Honshu (Shizuoka).
Ito and Kosugi 2007, 53, Hokkaido (Kushiro).
Ito et al 2007, 148, Hokkaido (Kushiro).
Kimura et al. 2007, 166, Honshu (Nagano).
Kuhara et al. 2007, ap. 69, Hokkaido (Ishikari).
Nakano et al. 2007, 40, Hokkaido (Nemuro).
Katsuma 2008a, 40, Honshu (Ibaraki).
Katsuma 2008b, 57, Honshu (Ibaraki).
Morita 2008, 722, Honshu (Mie).
Ohtaka et al. 2008, 60-61, Honshu (Aomori).
Ito et al. 2010, 59, 74-75, Hokkaido (Hiyama, Oshima).
Kawase and Hayashi, 2010, 80, Honshu (Shimane).
Kawase and Morita 2010, 40, Honshu (Mie, Shiga).
Mano 2010, 21, Honshu (Aichi).
Morita 2011, 215, Honshu (Mie).
Ito and Nakatani 2011, 52, 147, adult, Hokkaido (Kushiro).
Kawase and Hayashi 2011a, 172, Honshu (Shimane).
Kawase and Hayashi 2011b, 192, Honshu (Shimane).
Katsuma 2011a, 69, Honshu (Ibaraki).
Nozaki 2011, 4, Honshu (Aichi).
Morita 2012, 250, Honshu (Mie).
Ito 2013, 54, Hokkaido (Kushiro).
Ijima and Tsuchiya 2014, 28, Hokkaido (Kushiro).
Ito and Nagasaka 2014, 10, Hokkaido (Sorachi).
Ito and Nagasaka 2014, 10, Hokkaido (Sorachi).
Kuhara 2016, 564-565, male, female, Hokkaido (Kushiro, Tokachi, Soya, Rumoi, Kamikawa, Ishikari, Iburi, Hiyama, Oshima), Honshu (Ibaraki, Gumma, Kanagawa, Niigata, Fukui, Yamanashi, Nagano, Shizuoka, Mie, Shiga, Shimane), Shikoku (Ehime, Kochi), Kyushu (Fukuoka), Rishiri-to, Iki-no-shima, Okinawa-to, Kume-jima, Ishigaki-jima, Iriomote-jima, Yonaguni-jima.
Nozaki 2016, 75, 344, 434, 450, male, Yonaguni-jima.
Tanaka 2016, 2-3, male, Honshu (Akita).
Tanida 2016, 89.
Kawase et al. 2017, 29, Honshu (Shiga).
Kobayashi et al. 2017, 17, Honshu (Shiga, Kyoto).
Nojima 2017, 117, Honshu (Okayama).
Tanaka 2017, 2, Honshu (Akita).
Kuhara 2018, 558-559, male, female.
Tanaka 2018, 8, Honshu (Akita).
Tanaka 2019, 12, Honshu (Akita).
Nakatani 2021, 55, Hokkaido (Kushiro).
Ito and Kuhara 2023, 59, Hokkaido (Soya).
Higuchi 2024, 25, Honshu (Ishikawa).
Shimura and Imasaka 2024, 217, Kyushu (Fukuoka).
Ecnomus omiensis: Tsuda 1942a, 268-269, male, Honshu (Shiga, Kyoto). Synonymized by Schmid (1958).
Tsuda and Kuwayama 1950, 416, male.
Mori and Matsutani 1953, 192-196, flight behavior, Honshu (Shiga).
Akagi 1957, 60-61, larva.
Tsuda 1959, 138, larva.
Tsuda and Akagi 1962, 131, larva.
Kobayashi 1964, 86, Hokkaido (Oshima).
Nishiharu 1997a, 60, Honshu (Fukui). Corrected to "E. tenellus" by Nishiharu (1997b).
Ecnomus kososiensis Kobayashi 1987, 16, 30-31, male, female, wing venation, Honshu (Shimane). Synonymized by Kuhara (2016).
Type locality. France.
Distribution. Japan (Hokkaido, Honshu, Shikoku, Kyushu, Rishiri-to, Iki-no-shima, Ryukyu), Palaearctic (Europe to Far East), Taiwan, India, Sri Lanka, north Africa.
Remarks. Tsuda (1942c) considered that the larval record of E. tenellus by Iwata (1927) was misidentification because it was a European species. Nowadays, however, this species is confirmed to be distributed in the Far East Asia including Japan, so that the Tsuda’s claim has become invalid. Although Tanida (2016) treated E. kososiensis is a junior synonym of E. japonicus without remarks, Kuhara (2016) synonymized E. kososiensis with E. tenellus by examination of the holotype of the former.

Ecnomus yamashironis Tsuda 1942

Ecnomus yamashironis: Tsuda 1942a, 267-268, male, Honshu (Shiga, Kyoto).
Tsuda 1942b, 263-264, Honshu (Kyoto).
Tsuda and Kuwayama 1950, 416, male.
Tani 1977, 193, thorax of adult.
Nishino and Tanida 1992, 30, adult, Honshu (Shiga).
Kawase et al. 2004, 112, Honshu (Ibaraki).
Ishiwata et al. 2005, 242-244, Honshu (Kanagawa).
Kimura et al. 2007, 166, Honshu (Nagano).
Katsuma 2008a, 38, 40, male, Honshu (Ibaraki).
Katsuma 2008b, 57-58, Honshu (Ibaraki).
Tanida 2008, 249, pl. 92, adult, Honshu (Shiga).
Katsuma 2010, 84, Honshu (Ibaraki).
Morita 2015, 17, Honshu (Mie).
Kuhara 2016, 565-566, male, female, Hokkaido (Soya, Rumoi, Ishikari), Honshu (Ibaraki, Shizuoka, Mie, Shimane).
Nozaki 2016, 344, 434, male.
Tanaka 2016, 2-3, male, Honshu (Akita).
Tanida 2016, 89.
Kawase et al. 2017, 29, Honshu (Shiga).
Kobayashi et al. 2017, 17, Honshu (Shiga, Kyoto).
Nojima 2017, 117, Honshu (Okayama).
Kuhara 2018, 558-559, male, female.
Nozaki 2018, 929, Honshu (Kanagawa).
Kuhara et al. 2023, 17, Kyushu (Kumamoto, Oita).
Tanaka 2023, 42, Honshu (Akita).
Tanaka 2024, 27, Honshu (Akita).
Type locality. Honshu (Shiga and Kyoto), Japan.
Distribution. Japan (Hokkaido, Honshu, Kyushu), Korea, China, Russian Far East (Khabarovsk and Primorye Territories).


References
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