CLADOENDESIS OF EPHEMEROPTERA
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Figs 12–18. Nousia (Araucophlebia) latifolia. 12–14 – genitals of male imago: 12 – ventral view; 13 – penis, dorsal view; 14 – penis, lateral view; 15 – posterior margin of sternum IX of male larva of last instar and larval protopenis, dorsal view; 16 – posterior margin of sternum IX of female larva of last instar; 17 – posterior margin of sternum IX of female imago; 18 – subimaginal exuviae of mesonotum (12, 13, 18, holotype). P, small sclerotized process; R, transverse semicircular ridge.