CLADOENDESIS OF EPHEMEROPTERA
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Kluge 2014 (Dilatognathus): Figs 01-13 14-15 16-18 19-28 29-33 34-39 40-43

Figs 16–18. Choroterpes (Dilatognathus) bogori, maxilla of penultimolarva at various stages of transformation preceding molt to ultimolarva (slides in Canadian balsam): 16 – female, early stage; 17 – female, middle stage; 18 – male, late stage.