Abstract
Five new species of the genus Homoplectra Ross 1938 (Trichoptera: Hydropsychidae) are described from Japan: H. crassa, H. ise, H. hattorii, H. occidens, and H. gracilis. Diplectrona tohokuensis Kobayashi 1973 is transferred to the genus Homoplectra. Geographic variations in the male genitalia are reported for four new species. Descriptions of the immature stages of H. crassa sp. nov. and H. tohokuensis are provided. Larvae of these species were found in small seeps and flows in hill or mountain areas.
References
Huryn, A.D. (1989) Identity of the hydropsychid larva as “Oropsyche?”: the immature stages of Homoplectra flinti Weaver. Journal of the North American Benthological Society, 8, 112–116.
https://doi.org/10.2307/1467407
Inazu, K. (2008) Collection record of caddisflies in the Itoi River Hyogo over 5 years (2001–2005) – Notes on emergence periods classification distribution and ecology of adults and larvae. Hyôgo Freshwater Biology, 60, 59–104. [in Japanese]
Inazu, K. (2012) Collection record of caddisflies in the Kishida River, Hyogo Prefecture. Hyôgo Freshwater Biology, 63, 1–14. [in Japanese]
Ito, T. & Nozaki, T. (2018) The family Hydropsychidae Curtis (Trichoptera) in the Ryukyu Archipelago, southwestern Japan. Zootaxa, 4504 (4), 545–565.
https://doi.org/10.11646/zootaxa.4504.4.6
Ito, T., Kuhara, N., Hattori, T. & Ohkawa, A. (2010) Caddisfly (Trichoptera) fauna of Oshima Peninsula, Hokkaido, northern Japan. Biology of Inland Waters, 25, 51–85. [in Japanese with English abstract]
Katsuma, N. (2012) Trichoptera. In: Ibaraki Nature Museum (Ed.), Report of Comprehensive Survey of Plants, Animals and Geology in Ibaraki Prefecture by the Ibaraki Nature Museum—Trends of Insects and Other Invertebrates in 2011. Ibaraki Nature Museum, Bando, Ibaraki Prefecture, pp. 53–54. [in Japanese]
Kawase, N., Morita, H., Takeda, S. & Uenishi, M. (2017) Caddisfly (Insecta: Trichoptera) fauna of the Lake Biwa Basin in Shiga Prefecture, central Japan. Biology of Inland Waters, 31, 21–44. [in Japanese with English abstract]
Kobayashi, M. (1973) Caddisfly fauna of the vicinity of Yamagata Prefecture, with descriptions of thirteen new species. Bulletin of the Kanagawa Prefectural Museum (Natural Science), 6, 21–43, pls. 3–10.
Kugo, C. & Nozaki, T. (1991) A list of caddisflies in the Yumesaki-gawa River and the Kishida-gawa River, Hyogo Prefecture (A second report). Hyôgo Freshwater Biology, 39/40, 5–9. [in Japanese]
Malicky, H. (2015) Einige neue chinesische Köcherfligen (Trichoptera). Linzer Biologische Beiträge, 47, 667–686.
Milne, M. J. (1938) The metamorphotype method in Trichoptera. Journal of the New York Entomological Society, 46 (4), 435–437.
Morita, H. (2008) Minami-ise-cho no tobikera-so [Trichoptera fauna of Minami-ise-cho]. Hirakura, 52, 91–93. [in Japanese]
Morse, J.C. (2018) Trichoptera World Checklist. Available from: http://entweb.clemson.edu/database/trichopt/index.htm
(accessed 23 November 2018)Nojima, K. (2017) Caddisflies (Insecta: Trichoptera) in Okayama Prefecture, western Japan. Biology of Inland Waters, 32, 107–13.1 [in Japanese with English abstract]
Nozaki, T. & Nakamura, S. (2002) Caddisflies (Trichoptera) collected from Hiroshima Prefecture, western Honshu, Japan. Miscellaneous Reports of the Hiwa Museum for Natural History, 41, 165–180. [in Japanese with English abstract]
Ross, H.H. (1938) Descriptions of new North American Trichoptera. Proceedings of the Entomological Society of Washington, 40, 117–124.
Ruiter, D.E. (2003) Two new Trichoptera (Hydropsychidae and Uenoidae) from the Sierra Nevada, California. Pan-Pacific Entomologist, 79, 54–57.
Torii, T. & Hattori, T. (2006) Trichoptera fauna of the Seto River system, Shizuoka, central Japan. Biology of Inland Waters, 21, 31–41. [in Japanese with English abstract]
Tsuruda, D. (2018) Fauna and phenology of caddisflies (Trichoptera: Insecta) at two spring streams in Hino-shi, Tokyo. Hyôgo Freshwater Biology, 69, 23–34. [in Japanese]
Weaver, J.S.III (1985) A new species and new generic synonym of the Nearctic caddisfly genus Homoplectra (Trichoptera: Hydropsychidae). Entomological News, 96, 71–77.
Weaver, J.S.III, Swegman, B.G. & Sykora, J.L. (1979) The description of immature forms of Aphropsyche monticola Flint (Trichoptera: Hydropsychidae). Aquatic Insects, 1, 143–148.
https://doi.org/10.1080/01650427909360987
Westwood, J.O. (1838–1840) Trichoptera. In: An Introduction to the Modern Classification of Insects Founded on Natural Habits and Corresponding Organisation of the Different Families. Vol. 2. Synopsis of the Genera of British Insects. Longman, Orme, Brown, Green, and Longmans, London, pp. 49–51. [published June 1839]
Wiggins, G.B. (1996) Larvae of the North American Caddisfly Genera (Trichoptera), 2nd edition. University of Toronto Press, Toronto, Buffalo, London, 457 pp.
https://doi.org/10.3138/9781442623606
Yamamoto, E. & Ito, T. (2014) Caddisflies (Trichoptera) collected from Izugataniyama, Kumakogen-cho, Shikoku, Japan in 2012–2013. Shikokukogera, 14, 6–21. [in Japanese]