CLADOENDESIS OF EPHEMEROPTERA
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Figs 1–5. Terpides (Fittkaulus) amazonicus, larva: 1 — maxilla, dorsal view (interrupted lines show details of ventral side: outline of apical field of setae, round bases of ventral pectinate setae and setae of ventro-median row; most part of apical and ventral setae not shown, areas occupied by them shown by dotted lines); 2 — claw (hind leg of holotype); 3 — exuviae of right half of pronotum and mesonotum (cuticular pigmentation shown by dots); 4 — right half of metanotum; 5 — abdominal sternum IX and protopenis (2–5 — holotype).