FIGURES 522–531 in Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species

FIGURES 522–531. Thraulodes nigrotibialis sp. n. 522, right half of subimaginal exuviae of mesonotum; 523, head and thorax of male imago in lateral view; 524–525, female imago in dorsal and lateral view; 526–527, fore and middle leg of male imago; 528, abdominal terga and sterna of male imago; 529–530, genitalia of male imago with focus on styliger and on penis; 531, genitalia of male subimago extracted from larva (522–523, 526–530, holotype).