FIGURE 3 in The genus Rhyacophila Stephens (Trichoptera, Rhyacophilidae) in Yakushima Island, northern Ryukyu, southwestern Japan

FIGURE 3. Rhyacophila arakawa sp. nov. 3A–3D, male: 3A, genitalia, left lateral with enlarged figure of apex of a paramere; 3B, same, dorsal; 3C, apical part of segment X, left ventrolateral; 3D, right inferior appendage, dorsomesal, with enlarged figure of mesal spinules. 3E–3I, female: 3E, abdominal segments VIII–XI, left lateral; 3F, segment VIII, dorsal; 3G, same, ventral; 3H, vaginal apparatus, left lateral; 3I, same, ventral. Abbreviations: VIII–XI = abdominal segments VIII–XI; a inf app = apical segment of inferior appendage (paired); ae = aedeagus; ap ba = apical band; b inf app = basal segment of inferior appendage (paired); la pl= lateral plate (paired); pa = paramere (paired); ph = phallotheca; pp = posterior process; ps = processus spermathecae; t b = tergal band.