Hydroptila kakidaensis Nozaki & Tanida 2007
Creators: name: Ito, Tomiko
name: Ohkawa, Ayuko
name: Hattori, Toshio
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Hydroptila
Hydroptila kakidaensis

description: Hydroptila kakidaensis Nozaki & Tanida, 2007
(Figs. 11, 14 F)
Hydroptila kakidaensis Nozaki & Tanida, 2007, 245–246, figs. 2–3, male, female, Japan (Honshu).
Adult. Wings dark brown with several small lighter markings. Antennae brown to light brown with darker markings towards apices.
Male. Lengths of forewing, hindwing and body 2.4–2.9 mm, 2.2–2.5 mm and 2.4–3.0 mm, respectively (n=5). Antennae 30–32-segmented; length 1.4–1.7 mm (n=5). Ventral process of sternite VII elongate broad at apex, ventral surface slightly rugose apically. Segment IX with large rounded apico-lateral apodemes and subtriangular setose lobes at postero-lateral angles. Dorsal plate triangular with apex subacute in lateral view, in dorsal and ventral views elongate ovoid, shape of apex variable even within specimens collected from same site, with or without shallow median concavity. Subgenital plate membranous, wide in lateral and ventral views, length variable, between 1/ 4–1/2 as long as dorsal plate. Phallic apparatus slender with long narrow flanges; subapical process almost straight, elongate, slightly curved apically. Inferior appendages short, fused basally, each distally forming 2 lobes; in lateral view dorsal lobe thumb-like, bearing very long seta near apex; mesal lobe larger than dorsal lobe, directed posteroventrad, apex acute.
Female. Lengths of forewing, hindwing and body 2.8–3.2 mm, 2.6–2.9 mm and 2.4–3.3 mm, respectively (n=5). Antennae 24–25-segmented; length 0.8–1.0 mm (n=5). Segment VIII tergite weakly sclerotized with wide shallow excision posteriorly and 5 pairs of setae near posterior-lateral angles; sternite weakly sclerotized with narrow oblique bands at posterior margin; pair of rounded lobes ventrally, each lobe with 2–3 (2 in most specimens) strong, somewhat wavy, setae. Bursa copulatrix lozenge-shaped.
Specimens examined. Honshu. Nagano: 5 males, 1 female, Hotaka-cho, Azumino, 29.V.1999, HN. Shizuoka: 6 males, 3 females, Shimizu-cho, Kakida-gawa (type locality), 27.V.2001, TN & KT, L; 1 male, ibid., 27.IV–11.V.2002, TN, M; 1 female, Shizuoka-shi, Shimo, Kujiraga-ike, 22.X.1995, TH, L; 1 female, Shizuoka-shi, Mizumiiro, 150 m, 27.IX.1995, TH, L; 8 males, 5 females, Shizuoka-shi, Ushizawa, Moriya-sawa, 120 m, 26.VII.1995, TH, L; 1 male, 2 females, Shizuoka-shi, Shinma, Shinmaya-gawa, 110 m, 14.VI.2005, TH, L; 19 males, 19 females, 7 pupae, 7 larvae, Shizuoka-shi, Shinma, Shinmaya-gawa, 50 m, 21.VI.2009, TH, L; 3 males, 1 female, Shizuoka-shi, Enodoshinden, Abe-kawa, 70 m, 25.VIII.1995, TH, L; 33 males, 10 females, Shizuoka-shi, Tawarazawa, Abe-kawa, 130 m, 22.X.1995, TH, L; 88 males, 84 females, Shizuoka-shi, Tawarazawa, Abe-kawa, 150 m, 23.V.1994, TH, L; 4 females, Shizuoka-shi, Yujima, Abe-kawa, 150 m, 19.VIII.1995, TH, L; 2 females, Shizuoka-shi, Nyujima, Abe-kawa, 375 m, 25.IX.1995, TH, L; 54 males, 15 females, Shizuoka-shi, Ashikubo, Abe-kawa, 75 m, Matsuzaki-hashi, 1.VI–25.VII.2005, TH, L; 1 male, Hamamatsu-shi, Mori-machi, Oguni-jinjya, 1.VIII.2005, K. Sugisima. Mie: 7 males, Yokkaichi-shi, Watarai-cho, Miyakawa, 28.V.2001, H. Morita. Kyushu. Kumamoto: 3 males, Takamori-cho, Kigo-no-taki, 3.VI.1999, HN; 1 male, Minami-aso-mura, Hakusui, Nakamatsuike-no-kawa, headwater, 4.VI.2002, AO, S; 6 males, 1 female, Minami-aso-mura, Hakusui, Myojin-ike, Meisuikoen, 19.XI.2001, AO, S; 4 males, 1 female, Minami-aso-mura, Hakusui, Yoshida-jo, 19.XI.2001, AO, S. Miyazaki: 8 males, 1 female, Aya-cho, Yotsue, Honjo-gawa, 21.V.2004, TH, L; 21 males, 20 females, Nobeokashi, Kitagawa-cho, 22.IV.2004, TH, L. Kagoshima: 1 male, 1 female, between Izumi-shi to Akune-shi, 11.V.1999, S. Tsukaguchi.
Remarks. The male of this species is similar to that of H. dejaloni Botosaneanu, 1980, which occurs in Europe (Malicky 2004a), in having rounded apico-lateral apodemes on segment IX, the dorsal plate subtriangular, the subgenital plate membranous and stout, and the inferior appendages short with 2 lobes. It is distinguishable from that of H. dejaloni by the shape of the phallic apparatus with its almost straight, elongate subapical process.
Distribution. Japan (Honshu, Kyushu). Endemic to Japan.
Habitat. Adults of this species are collected near streams.
Japanese name. Kakida-hime-tobikera.
description: Published as part of Ito, Tomiko, Ohkawa, Ayuko & Hattori, Toshio, 2011, The genus Hydroptila Dalman (Trichoptera, Hydroptilidae) in Japan, pp. 1-26 in Zootaxa 2801 on pages 19-20, DOI: 10.5281/zenodo.202293