1 Wings of Habrophlebia vibrans 



2 Abdominal appendages of the male, viewed from above 



3 Abdominal appendages of the male of E p h e m c r e II a d o r o t h e a 



4 Thoracic crest of female subimago 



5 Abdominal appendages of male of P o t o m a n t h u s d i a p h a n u s 



6 Side view of end of abdomen of female, Choroterpes betteni, 



showing ovipositor 



7 Side view of end of abdomen of male 



8 Ventral view of male abdominal appendages 



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