CLADOENDESIS OF EPHEMEROPTERA
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Kluge & Novikova 2017: Figs 1-8 9-13 14-17 18-20 21-24 25-26 27-31 32-36 37-38 39-46 47-50 51-57 58-67 68-77 78-84 85-87 88-93 94-97

     

Figs 18–20. Ephemerythus niger, male imago. 18 – genitals with focus on styliger and gonostylus; 19 – the same, with focus on dorsal side of penis; 20 – penis (ventral view, gonoducts shown by dotted lines).