Family Polycentropodidae Stephens
Author: Tomiko ITO* and Shu INABA
*: Correspondence. E-mail: tobikera[AT]siren.ocn.ne.jp
Last updated: 4 October 2026
A species probably belonging to the genus Polycentropus Curtis was recorded from Japan (Tanida 1997b), but its generic status is not clear. A species recorded as Polycentropodidae gen. sp. by Morita (1999a) was described as Eoneureclipsis montanus, a member of the family Psychomyiidae, by Torii and Nishimoto (2011). Nishimoto (2016) also recorded a species belonging to an unidentified genus as a cave-dwelling species. Iwata (1927a, 1927b) recorded a European species Polycentropus flavomaculatus Pictet based on only larval specimens from Honshu and Kyushu. However, Tsuda (1942) proposed that the name should not be used for Japanese fauna because adults of this species had never been found from Japan.
Genus Cyrnus Stephens
Cyrnus fennicus Klingstedt 1937
Distribution. Japan (Hokkaido (east)), Finland, Russia (Khabarovsk, Primorye, Sakhalin).
Distribution. Japan (Hokkaido, Honshu), Russia (Primorye, Khabarovsk).
Genus Holocentropus Mclachlan
Holocentropus omiensis Iwata, 1927
Distribution. Japan (Honshu (central)).
Genus Neureclipsis McLachlan
Inaba et al. (2014) decided that the genus Neucentropus Martynov is a synonym of this genus based on examination of adult and larval stages.
Neureclipsis mandjurica (Martynov 1907)
Neucentropus mandjuricus Martynov 1907
Neureclipsis kyotoensis Iwata 1927a
Kyopsyche japonica Tsuda 1942a
Neureclipsis mongolica Schumid 1968
Neucentropus japonicus: Li et al. 1998
Distribution. Japan (Honshu (central)), China (Jiangsu, Jiangxi, Liaoning, Jilin, Heilongjiang), Russia (Primorye, Khabarovsk), Mongolia, Vietnam.
Genus Nyctiophylax Brauer
The genus Paranyctiophylax was established with the type species P. kisoensis by Tsuda (1942a). Although Neboiss (1993) recognized it as a distinct genus based on character of looped anal vein in forewings, Malicky (1994) treated it as a subgenus of this genus. Tanida (1997b) recorded an unnamed species probably belonging to this genus from Okinawa-jima, but the specific and generic status of this species has not yet been clear.
Nyctiophylax asuanus (Kobayashi 1985)
Plectrocnemia asuana Kobayashi 1985
Distribution. Japan (Tsushima).
Nyctiophylax kadowakii (Kobayashi 1987)
Plectrocnemia kadowakii Kobayashi 1987
Distribution. Japan (Honshu (west)).
Nyctiophylax kisoensis (Tsuda 1942)
Paranyctiophylax kisoensis Tsuda 1942a
Nyctiophylax sp. NA: Tanida 1985
Distribution. Japan (Hokkaido, Honshu, Shikoku, Kyushu, Yakushima).
Nyctiophylax makiensis (Kobayashi 1987)
Plectrocnemia makiensis Kobayashi 1987
Distribution. Japan (Honshu (west)).
Genus Plectrocnemia Stephens
Plectrocnemia chirotheca Nozaki 2016
Distribution. Japan (Honshu (north to central)).
Plectrocnemia corna Ohkawa and Ito 2007
Distribution. Japan (Honshu, Shikoku, Kyushu).
Plectrocnemia divisa Ohkawa and Ito 2007
Distribution. Japan (Hokkaido, Honshu (central)).
Plectrocnemia galloisi Navás 1933
Distribution. Japan (Honshu (central)).
Plectrocnemia hirayamai (Matsumura 1931)
Arctopsyhce hirayamai Matsumura 1931
Distribution. Japan (Honshu (central to west), Shikoku).
Plectrocnemia levanidovae Vshivkova, Arefina and Morse 2003
Distribution. Japan (Hokkaido, Honshu), South Kurils, Sakhalin.
Plectrocnemia nagayamai Schmid 1964
Distribution. Japan (Hokkaido, Honshu (north to central)), Russia (Sakhalin).
Plectrocnemia nigrospinus (Hsu and Chen, 1996)
Polycentropus nigrospinus Hsu and Chen, 1996.
Distribution. Japan (Yonaguni-jima), Taiwan.
Plectrocnemia norikurana Tsuda 1942
Distribution. Japan (Hokkaido, Honshu (north to central)).
Plectrocnemia odamiyamensis Ohkawa and Ito 2007
Distribution. Japan (Honshu (central), Shikoku).
Plectrocnemia okiensis Kobayashi 1987
Distribution. Japan (Oki).
Plectrocnemia ondakeana Tsuda 1942
Distribution. Japan (Hokkaido, Honshu), China (Sichuan).
Plectrocnemia scoparia Ohkawa and Ito 2007
Distribution. Japan (Honshu (central), Shikoku, Kyushu).
Plectrocnemia suzukii Ohkawa and Ito 2007
Distribution. Japan (Hokkaido, Honshu (central)).
Plectrocnemia tochimotoi Schmid 1964
Distribution. Japan (Honshu, Shikoku, Sado, Tsushima).
Plectrocnemia tsukuiensis (Kobayashi 1984)
Kyopsyche tsukuiensis Kobayashi 1984a
?Holocentropus tsukuiensis: Tanida and Takemon 1993
Distribution. Japan (Honshu (central to west), Shikoku), China (An-hui, He-nan, Guang-dong, Guang-xi, Gui-zhou, Jiang-xi, Zhe-jiang).
Plectrocnemia wui (Ulmer 1932)
Polycentropus wui Ulmer 1932
Distribution. Japan (Honshu (central to west), Shikoku, Kyushu), Russia (Sakhalin, Primorye), China (Beijing, Heilongjiang), Korea.
Genus Polyplectropus Ulmer
Polyplectropus malickyi Nozaki, Katsuma and Hattori 2010
Distribution. Japan (Honshu (central to west), Kyushu, Yakushima), Korea.
Polyplectropus moritai Nozaki, Katsuma and Hattori 2010
Distribution. Japan (Honshu (central)).
Polyplectropus nocturnus Arefina 1996
Distribution. Japan (Honshu (central)), Russia (Khabarovsk, Primorye).
Polyplectropus protensus Ulmer 1908
Distribution. Japan (Honshu (central)).
Polyplectropus unicus (Hsu and Chen, 1996)
Polycentropus unicus Hsu and Chen, 1996.
Distribution. Japan (Okinawa-jima, Yonaguni-jima), Taiwan.
Polyplectropus sp. aff. nocturnus: Katsuma, 2016
Acknowledgement
We are thankful to Ayuko OHKAWA, Furano-shi, Hokkaido, for her contributions as a co-author of early versions of this catalogue.