CLADOENDESIS OF EPHEMEROPTERA

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Kluge 2023: Securiopslist of figures

   

  

Fig. 53–58. Procloeon (Securiops) falcatum, exuviae of larval abdomen. 53–56 – terga II, III, IV and IX; 57 – sternum IV; 58 – constant bifurcate seta on sublateral part of sternum VIII.