FIGURES 14–20 in Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species

FIGURES 14–20. Thraulodes ludmilae sp. n., exuviae of mouthparts of holotype (14, 17–19 at the same magnification): 14, labrum; 15, its anterior margin with focus on dorsal side; 16, the same, with focus on ventral side; 17–18, left and right mandibles; 19, labium and maxilla; 20, dorsal side of glossa. Abbreviations: anter.r, limits of anterior transverse row of setae; poster. r, posterior transverse row of setae; other arrows show six sensilla separating five denticles.