CLADOENDESIS OF EPHEMEROPTERA
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Fig. 56–59. Waynokiops pentacanthus. 56 – precursors of subimaginal gonostyli starting to develop under larval cuticle; 57 – subimaginal exuviae of gonostylus; 58 – genitalia of male imago; 59 – wing. Abbreviations: g1–g3 – segments of gonostylus; gd – gonoduct; m.IX-X – areas of anterior attachment of paired intersegmental muscles going to paraprocts base; m.s – median sterno-styligeral muscle.