CLADOENDESIS OF EPHEMEROPTERA
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Kluge & Novikova 2014 (Indobaetis): text; Figs 1-4 5-10 11-17 18-22 23-29 30-35 36-39 40-45 46-52 53-59 60-65 66-70 71-75 76-77

 

        

Figs 76–77. Subimaginal genitals developing under larval cuticle. 76 – Nigrobaetis niger (Linnaeus 1761)) («Nigrobaetis-type» of gonostyli folding); 77 – Acerpenna pygmaea (Hagen 1861) («Labiobaetis-type» of gonostyli folding). 

Abbreviations: gs1–gs3 – 1st–3rd segments of gonostylus; m.s – median sterno-styligeral muscle; us – unistyliger.