taxonID	type	description	language	source
03AF878FFFC7FFAB0C933F80FD54FB97.taxon	description	(Figs 1, 4, 9) Rhyacophila sp. 3: Kang 2020, 232 – 233, male (photographs), Korea.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC7FFAB0C933F80FD54FB97.taxon	diagnosis	Diagnosis. This species belongs to the Rhyacophila nigrocephala Species Group (Ross 1956). The male genitalia are similar to those of R. confissa and R. vicina, but the male of R. kangae sp. nov. is distinguishable from those of the latter two species by the shape of the complex of preanal appendages and apicodorsal lobe of segment IX: In dorsal aspect, the two lobes are widely separated from each other, forming a large U-shape in R. kangae sp. nov. (Fig. 1 B), but they form a narrow slit in R. confissa and R. vicina (Figs. 2 B, 3 B). Furthermore, the male of R. kangae sp. nov. bears large compound eyes in proportion to its head width when compared with those of R. confissa and R. vicina: 0.37 – 0.45 in R. kangae, but 0.23 – 0.31 in R. confissa and R. vicina (Figs. 1 F a b, 2 C, 3 C). The female genitalia are similar to those of R. confissa and R. vicina but can be distinguished by the shape of the vaginal apparatus: In ventral aspect, the posterior process of the vaginal apparatus is long and rectangular in R. kangae sp. nov. (Fig. 4 F), but that of R. confissa bears an 8 - shaped unpigmented part apicoventrally (Fig. 6 B), and that of R. vicina is constricted at 2 / 5 from the posterior apex (Fig. 7 B). The male and female of R. kangae sp. nov. are also similar to those of a Japanese species, R. yamamotoi sp. nov., but they are distinguished by the characters given in the diagnosis for that species, below. Adult. Specimens in alcohol mostly dark brown, but tibiae and tarsi of all legs light brown. Forewings each 12.2 – 13.5 mm in male (n = 6), 13 – 14.8 mm in female (n = 2). Ratio of width of eye to distance between eyes (a / b in Fig. 1 F) 0.37 – 0.45 in male (n = 6), 0.25 – 0.33 in female (n = 6). Male genitalia. Segment IX (IX) longitudinally short in lateral aspect (Fig. 1 A), ventral half longer than dorsum; membranous along midline in dorsal aspect (Fig. 1 B). Complex of pair of preanal appendages and apicodorsal lobe of segment IX (com.) bilobed from about basal 2 / 5, widely separated, large, U-shaped in dorsal aspect (Fig. 1 B); each lobe finger-like in lateral aspect (Fig. 1 A), with 3 tiny teeth apicomesally (2 dorsal, 1 ventral, inset for Fig. 1 A). Anal sclerites (a. s.) fused basally, bilobed apically, each round apex with minute black denticles dorsally. Apical band (a. b.) long, curved posterad, dorsal margin connected to base of anal sclerite; ventral margin connected to base of sagittal appendage (s. a.) of tergal band (Fig. 1 A); sagittal appendage trapezoidal in dorsal and ventral aspects (Fig. 1 C). Basal segment of each inferior appendage (i. a.) thick in lateral aspect (Fig. 1 A); posteromesal angle triangular, directed mesad in dorsal aspect (Fig. 1 B); mesal face with ridged tendon (t. i. a.) along midline, extending to phallotheca (pha.) (Figs 1 A, 1 D). Distal segment of each inferior appendage bilobed, dorsal lobe club-like in lateral aspect (Figs 1 A, 1 D), ventral lobe semicircular in lateral aspect, both lobes with minute spines apicomesally. In phallic apparatus (Fig. 1 E), aedeagus (ae.) bottle-shaped in dorsal and ventral aspects; parameres (para.) slender, club-like, apices curve laterad, and with tiny spines. Female genitalia. Segment VIII (VIII) annular, but semi-membranous along dorsal and ventral midlines, with pair of dorsal weakly sclerotized extensions (Fig. 4 C); pair of apodemal rods reaching posterior end of segment VI. Segment IX (IX) membranous, with pair of strongly sclerotized bands dorsolaterally extending into segment VI as apodemal rods (Fig. 4 B, ap. IX); fused with segment X (X) ventrally, pair of ventrolateral sclerotized bands extending to segment X (Fig. 4 B). Segment X slender, with pair of strongly sclerotized bands dorsolaterally; fused with segment XI (XI) (Fig. 4 B). In vaginal apparatus, processus spermathecae (p. s.) claw-like in lateral aspect (Fig. 4 E), semicircular in ventral aspect (Fig. 4 F); posterior process (p. p.) long rectangular in ventral aspect, more than 3 times longer than anterior width, face-down and saucer-shaped in lateral aspect (Fig. 4 E). Immature stages. Unknown.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC7FFAB0C933F80FD54FB97.taxon	materials_examined	Holotype. Male (in alcohol), Bangtaecheon Stream, Jindong-ri, Girin-myeon, Inje-gun, Gangwon-do, Korea, 38.024 ° N, 128.472 ° E, alt. 690 m, 23. v. 2018, MS. Kang (net sweeping) (NIBR 0000935610). Paratypes. 1 male, 1 female, same data as the holotype (NIBR 0000935608 – 0000935609); 4 males, 1 female, Samil River, Sanae-myeon, Hwacheon-gun, Gangwon-do, Korea, 10. vi. 2014, T. Ito (net sweeping) (CBM-ZI 0180236 – 0180240). Other specimens examined. KOREA: 2 males, 4 females, Gyebangsan, Gangwon-do, 11. vi. 2014, T. Ito (net sweeping) (1 male, 2 females: SJP; 1 male, 2 females: TN).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC7FFAB0C933F80FD54FB97.taxon	etymology	Etymology. This species is dedicated to Ms. Mi-Sook Kang, who gifted us valuable specimens and information concerning Korean caddisflies, including this species.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC7FFAB0C933F80FD54FB97.taxon	distribution	Distribution. The Korean Peninsula (Gangwon-do, South Korea).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC7FFAB0C933F80FD54FB97.taxon	discussion	Remarks. This species was found in Gangwon-do, South Korea, where both R. confissa and R. vicina are distributed (Fig. 9). One of the sites where R. confissa was collected in this study is only 1.4 km from the type locality of R. kangae sp. nov. in the same stream (Bangtaecheon Stream). Although the genitalic morphology of the new species is similar to those of R. confissa and R. vicina, the differences in diagnostic characters described above are stable. The male of R. kangae sp. nov. bears large compound eyes in proportion to its head width when compared with those of males of R. confissa and R. vicina, and also with those of females of these three species. The sexual dimorphism in the size of compound eyes observed in this new species suggests that the mating behavior of this species may differ from that of R. confissa and R. vicina.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC4FFAA0C933951FE2FFAFF.taxon	description	(Figs 5, 8, 9) Rhyacophila sp. B: Morita 2009, 6 – 7, list. Rhyacophila sp. 4: Kawase & Morita 2010, 36, list Rhyacophila sp. 3: Yamamoto & Ito 2014, 7, list.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC4FFAA0C933951FE2FFAFF.taxon	diagnosis	Diagnosis. Male and female of this species are most similar to those of R. kangae sp. nov. but can be distinguished by characters of the genitalic morphology. In males, the apex of each preanal appendage of this species is weakly bilobed apically in lateral aspect (Fig. 8 B) but is rounded in R. kangae (Fig. 1 A). Each paramere is expanded subapically in this species (Fig. 8 E) but is club-like in R. kangae (Fig. 1 E). In the female, the posterior process of the vaginal apparatus of this species is broader and thicker than that of R. kangae (Figs 4 E, 4 F, 5 E, 5 F). In Japan, the male genitalia of this species are somewhat similar to that of Rhyacophila kawamurae in lateral aspect, especially in the shape of the inferior appendages, but can be easily distinguished by the shape of the complex of a pair of preanal appendages and the apicodorsal lobe of segment IX in dorsal aspect: These are bilobed from the basal 1 / 3 – 1 / 2 in this species but bearing only a minute apical notch in R. kawamurae (Tsuda 1940, fig. 17). Adult. Specimens in alcohol mostly dark brown to black, but legs light brown. Forewings each 8.0 – 11.5 mm in male (n = 10), 10.2 – 11.0 mm in female (n = 7). Ratio of width of eye to distance between eyes (a / b in Fig. 1 F) 0.33 – 0.40 in male (n = 10) (Fig. 8 A), 0.24 – 0.30 in female (n = 8). Male genitalia. Segment IX longitudinally short in lateral aspect (Fig. 8 B), ventral half longer than dorsum; membranous along midline in dorsal aspect (Fig. 8 C). Complex of pair of preanal appendages and apicodorsal lobe of segment IX bilobed from basal 1 / 3 – 1 / 2, widely separated, large, U-shaped in dorsal aspect (Fig. 8 C); in lateral aspect each lobe rectangular, apex slightly concave (Fig. 8 B); with 2 teeth apicomesally, dorsal one small, ventral one tiny (inset of Fig. 8 B). Anal sclerites fused basally, bilobed, each round apex with minute black denticles dorsally (Fig. 8 C). Apical band long, curved posterad, ventral margin connected to sagittal appendage of tergal band (Fig. 8 B); sagittal appendage round trapezoidal in dorsal and ventral aspects. Basal segment of each inferior appendage thick in lateral aspect (Figs 8 B, 8 D); mesal face with ridged tendon longitudinally, extending to phallotheca (Figs 8 B, 8 D); posteromesal angle acute, directed mesad in dorsal aspect (Fig. 8 C). Distal segment of each inferior appendage bilobed (Figs. 8 B, 8 D); both lobes club-like in lateral aspect, with minute spines apicomesally (Fig. 8 D). In phallic apparatus, aedeagus bottle-shaped in dorsal and ventral aspects (Fig. 8 E); with pair of parameres, each broadened subapically, with tiny spines apically in dorsal aspect (Fig. 8 E). Female genitalia. Segment VIII annular, but semi-membranous along dorsal midline, with pair of dorsal weakly sclerotized extensions (Fig. 5 C); pair of apodemal rods reaching posterior end of segment VI. Segment IX membranous, with pair of dorsolateral apodemal rods extending into segment VI; fused with segment X ventrally, with pair of ventrolateral sclerotized band extending to segment X. Segment X slender, with pair of strongly sclerotized bands dorsolaterally; fused with segment XI. In vaginal apparatus, processus spermathecae claw-like in lateral aspect (Fig. 5 E), semicircular in ventral aspect (Fig. 5 F); posterior process tongue-like in ventral aspect (Fig. 5 F), not more than 3 times longer than anterior width, elliptical in lateral aspect. Immature stages. Unknown.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC4FFAA0C933951FE2FFAFF.taxon	materials_examined	Holotype. Male (in alcohol). Namakusa-dani, Odamiyama, Uchiko-cho, Ehime, Shikoku, Japan, 33.560 ° N, 132.918 ° E, alt. 1225 m, 11 – 20. v. 2020, E. Yamamoto (Malaise trap) (CBM-ZI 0180217). Paratypes. 10 males, 2 females, same data as the holotype (CBM-ZI 0180218 – 0180229), 6 males, same data as the holotype excepting the collection period 11 – 20. vi. 2020 (CBM-ZI 0180230 – 0180235); 1 male, 1 female, Izugatani-yama, Nishidani, Kumakogen-cho, Ehime, Japan, 1 – 10. v. 2018, E. Yamamoto (Malaise trap) (NIBR 0000935602 – 0000935603); 5 males, 2 females, same locality, 11 – 20. v. 2018, E. Yamamoto (Malaise trap) (KPM-NK); 4 males, same locality, 21 – 31. v. 2018, E. Yamamoto (Malaise trap) (NIBR 0000935604 – 0000935607). Other specimens examined. JAPAN: Honshu: Shizuoka: 1 male, tributary of Nishigochi-gawa, Yokosawa, Aoi-ku, Shizuoka-shi, alt. 550 m, 5. v. 2006, T. Nozaki (net sweeping) (TN). Mie: 4 males, Sakashita, Kameyamashi, 14. v. 2006, N. Kawase (net sweeping) (MITR- 20090042); 10 males, Ojigahata, Taga-cho, alt. 600 m, 19. v – 8. vi. 2009, H. Morita (Malaise trap) (NK). Shiga: 2 males, Yuzurio, Eigenji, Higashi-omi, 12 – 31. v. 2009, N. Kawase (Malaise trap) (MITR- 20090419). Shikoku: Ehime: 2 males, same data as holotype (TN); 1 male, Izugatani-yama, Nishidani, Kumakogen-cho, 21. vi. 2018, E. Yamamoto (light trap) (TN); 14 males, 1 female, same locality, 1 – 30. vi. 2018, E. Yamamoto (Malaise trap) (TN); 7 males, 1 female, same locality, 1. vii – 10. viii. 2018, E. Yamamoto (Malaise trap) (SJP). Kochi: 1 male, 1 female, Nishikuma-rindo, Monobe-cho, Kami-shi, M. Takai (TN); 1 male, Befu-kyo, Monobe-cho, Kami-shi, 24. iv. 2004, M. Takai (TN).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC4FFAA0C933951FE2FFAFF.taxon	etymology	Etymology. This species is dedicated to Mr. Eiji Yamamoto, who gifted us valuable specimens, including specimens of this species.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC4FFAA0C933951FE2FFAFF.taxon	distribution	Distribution. Japan (Honshu, Shikoku).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC4FFAA0C933951FE2FFAFF.taxon	discussion	Remarks. This species was found from two major islands, Honshu and Shikoku, in Japan (Fig. 9). The genitalic characteristics are consistent in both populations, and there are stable differences between this species and a Korean species, R. kangae sp. nov.	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC5FFAA0C9338F9FC39F85E.taxon	description	(Figs 2, 6, 9)	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC5FFAA0C9338F9FC39F85E.taxon	description	Specimens examined. KOREA: 26 males, 3 females, Kangrimchon, Chiaksan National Park, Pugok-ri, Hoengsong-gun, Gangwon-do, 19. v. 2000, T. Nozaki (net sweeping) (TN)); 4 males, 3 females, Gombaeryeong, Bangtaecheon Stream, Jindong-ri 218, Girin-myeon, Inje-gun, Gangwon-do, 23. v. 2018, MS. Kang (net sweeping) (SJP); 2 males, Jangjeon Valley, Jangjeon-ri 218, Jinbu-myeon, Pyeongchang-gun, Gangwon-do, 16. v. 2015, MS. Kang (net sweeping) (SJP); 4 males, Byeongjibang Valley, Byeongjibang-ri, Gapcheon-myeon, Hoengsung-gun, Gangwon-do, 06. v. 2016, MS. Kang (net sweeping) (SJP); 1 male, 2 females, Geumcheon Valley, Geumcheon-ri, Daapmyeon, Gwangyang-si, Jeollanamdo, 9. iv. 2016, MS. Kang (net sweeping) (SJP).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC5FFAA0C9338F9FC39F85E.taxon	distribution	Distribution. The Korean Peninsula (South Korea and North Korea).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC3FFAF0C933A0BFF24FDE4.taxon	description	(Figs 3, 7, 9)	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC3FFAF0C933A0BFF24FDE4.taxon	description	Specimens examined. KOREA: 2 males, 1 female, Kangrimchon, Chiaksan National Park, Pugok-ri, Hoengsong-gun, Gangwon-do, 19. v. 2000, T. Nozaki (net sweeping) (TN); 2 males, Jomurak Valley, Gapyeong-gun, Gyeonggi-do, alt. 410 m, 2. vi. 2014, T. Nozaki (net sweeping) (TN); 2 males, 1 female, Myeonji Mt. Valley, Gapyeong-gun, Gyeonggi-do, alt. 269 m, 2. vi. 2014, T. Nozaki (net sweeping); 1 male, 1 female, Myeonji Mt. Valley, Gapyeong-gun, Gyeonggi-do, alt. 250 m, 3. vi. 2014, T. Nozaki (light trap) (TN); 5 males, 5 females, Gwangchi Valley, Gaojak-ri, Yanggu-gun, Gangwon-do, 26. v. 2015, MS. Kang (net sweeping) (SJP); 4 males, Sambong National Recreation Forest, Gwangwon-ri, Nae-myeon, Hongcheon-gun, Gangwon-do, 14. v. 2018, MS. Kang (net sweeping) (SJP); Choamsa Temple, Jukgyegugok Valley, Baejeom-ri, Sunheung-myeon, Yeongju-si, Gyeongsangbuk-do, 1. vi. 2013, MS. Kang (net sweeping) (SJP).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
03AF878FFFC3FFAF0C933A0BFF24FDE4.taxon	distribution	Distribution. The Korean Peninsula (South Korea and North Korea), Russia (South Primorye), China (Liaoning).	en	Nozaki, Takao, Park, Sun-Jin (2021): Two new species of the genus Rhyacophila Pictet (Trichoptera, Rhyacophilidae) from Korea and Japan. Zootaxa 5067 (1): 97-105, DOI: 10.11646/zootaxa.5067.1.5
