CLADOENDESIS OF EPHEMEROPTERA
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Kluge 2009: Figs 1-5 6-11 12-15 16-20 21-23 24-26 27-28

 Figs 16–20. Terpides (Tikuna) nigrobulla, larva: 16 — tergalius I; 17 — exuviae of abdominal tergum VI with tergalius (cuticular pigmentation shown by dots); 18 — tergalius VII; 19 — pronotum and mesonotum (hypodermal pigmentation shown by dots; cuticular pigmentation not shown); 20 — abdominal sternum IX and protopenis (20 — holotype).