CLADOENDESIS OF EPHEMEROPTERA
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Figs 32–36. Ephemerythus nigricolor, genitals of male imago. 32 – genitals with focus on styliger; 33 – genitals with focus on penis; 34 – first segment of gonostylus; 35–36 – penis of two individuals (ventral view, denticles on dorsal side shown by interrupted lines, gonoducts shown by dotted lines) (32–35 – holotype).