FIGURES 603–612. Thraulodes lepidus. 603 in Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species

FIGURES 603–612. Thraulodes lepidus. 603, larva with brown cuticular markings and blackish hypodermal markings; 604– 605, cuticle of larval protogonostyli and protopenis; 606–607, subimaginal styliger with gonostyli and penis extracted from larva; 608, tergalius III; 609–610, subimaginal thorax extracted from larva; 611, abdom of male subimago extracted from larva; 612, its enlarged fragment. Abbreviations: cut.subim, brown subimaginal cuticle with small paired blanks; hyp.w, non-pigmented area of hypoderm visible through blanks of cuticle; hyp.b, dark brown hypodermal coloration.