FIGURES 52–59. Thraulodes sinuosus. 52–53 in Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species

FIGURES 52–59. Thraulodes sinuosus. 52–53, male imago in dorsal and ventral view; 54, genitalia of male imago with focus on gonostyli; 55, the same, with focus on penis; 56, right half of subimaginal exuviae of mesonotum; 57–58, female imago in ventral and lateral view; 59, pterostigma of fore wing.