CLADOENDESIS OF EPHEMEROPTERA
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Figs 578–588. Thraulodes alboniger. 578 – hind wing; 579 – genitalia of male imago in ventral view; 580 – dorsal margin of styliger and penis of another specimen; 581 – subimaginal exuviae of genitalia; 582 – penis in lateral view; 583 – posterior margin of IX sternum of female larva; 584 – the same of male larva with protogonostyli and protopenis; 585–588 – tergalii I, III, VI and VII (578, 580–581, 584–588 – holotype).