CLADOENDESIS OF EPHEMEROPTERA
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Figs 60–65. Crassabwa ludmilae, holotype, ultimolarval exuviae. 60 – abdominal terga and caudalii; 61 – head with labrum and right mandible; 62 – exuviae of half of pronotum and mesonotum; 63 – fragment of cercus; 64 – hind leg (triangle shows point where patella-tibial suture crosses inner margin); 65 – abdominal terga IX and X.