FIGURES 106–111. Thraulodes telegraphicus. 106 in Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species

FIGURES 106–111. Thraulodes telegraphicus. 106, protogonostyli of last instar larva (hypoderm of gonostyli and styliger and hidden cuticle of protopenis shown by interrupted lines); 107, enlarged cuticle of protopenis and hypoderm of developing penis inside; 108–109, the same, at later stage of development; 110–111, genital of male imago (110, styliger ventrally; 111, penis dorsally at left and ventrally at right). Abbreviation: bl, basal lobe; dp, dorsal projection of styliger; gd, gonoduct; m.gs, gonostylar muscle; m.med, median penial muscle; m.s, styligeral muscle; m-v.r, medio-ventral ridge (recurved flap); sp, seminal pump; tp, spear-like roll (telopenis).