CLADOENDESIS OF EPHEMEROPTERA
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Kluge 2004: Fig.72

Figure 72. Ephemera/fg10, penis structure.

A – Sinephemera/g* strigata [Ephemera], penis of imago, ventral view; B – Ephemera/fg11 vulgata [Ephemera], penis of imago, ventral view (left titillator is cut off to show transverse section). C–D – Afromera/g1 siamensis [Ephemera]: C – penis of subimago, ventral view (internal subimaginal parts shown by interrupted lines); D – penis of imago, ventral view.