CLADOENDESIS OF EPHEMEROPTERA
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Figs 7–18. 7–15 – Cheleocloeon clavifolium: 7–8 – incisor, kinetodontium and prostheca of left and right mandibles; 9 – head of female larva; 10–11 – larval hind protopteron and imaginal hind wing of the same male individual (holotype) at the same magnification; 12–13 – larval protopteron and imaginal vestige of hind wing (with lateral fragment of metathorax) of the same female individual at the same magnification; 14 – larval paraproct; 15 – scale on larval abdominal tergum. 16 – Ch. lancetofolium: incisor, kinetodontium and prostheca of right mandible; 17 – Ch. truncifolium, the same; 18 – Cheleocloeon sp. 3, the same. Abbreviations: in1, in2, in3, in4 – denticles of incisor; in-V – ventral denticle of incisor; kd1, kd2, kd3 – denticles of kinetodontium.