FIGURES 510–521 in Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species

FIGURES 510–521. Thraulodes nigrotibialis sp. n. 510 and 511–517, larval exuviae of two specimens at the same magnification: 510 and 511–512, parts of head with labrum and mandibles; 513, abdominal terga and sterna; 514–516, fore, middle and hind legs; 517, left half of pronotum and mesonotum; 518, young larva with brown cuticle and blackish hypodermal markings on head, thorax and abdomen; 519, anterior side of hind femur; 520, hind tibia with focus on outer-posterior row of stout setae; 521, the same with focus on outer-anterior and inner-anterior rows of stout setae (511–517, holotype).