CLADOENDESIS OF EPHEMEROPTERA
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[1] Larva

 [2] Subimago & imago

[3] Egg
[1.1] Head [1.2] Thorax [1.3] Abdomen [2.1] Head [2.2] Thorax [2.3] Abdomen

INDEX OF CHARACTERS

2. SUBIMAGO & IMAGO
 Head and its appendages [2.1], thorax and its appendages [2.2], abdomen and its appendages [2.3].

[2] Winged stages

— short-living: Prosopistoma/f1=g2 (4), Geminovenata (2), Exeuthyplocia/fg1 (1)}, Behningia/fg1 (3), Palingenia/f3=g2 (1), Polymitarcys/f1=Ephoron/g2 (3) 

— shortly-moulting, but non-short-living: [Classifications of Furcatergaliae IIb (8)], Caenoptera (7), Leptohyphes/fg1 (9), Isca/fg1 (2) 

— have imaginal moult in male only: Prosopistoma/f1=g2 (4), Behningia/fg1 (3), Palingenia/f3=g2 (1), part of Polymitarcys/f1=Ephoron/g2 (3) {Polymitarcys/f2=Ephoron/g3 (6)}, Tricorygnatha (5), part of Leptophlebia/fg1 (VAR) {Isca/fg2 (3)}

— have partial imaginal moult: Geminovenata (2)

— have no imaginal moult in both sexes: part of Anagenesia/g1 (2) 

— non-flying: part of Heptagennota (5), part of Anagenesia/g1 (1)