CLADOENDESIS OF EPHEMEROPTERA
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Fig. 215–224. Baetis (Tenuibaetis) bialatus. 215 – subimaginal exuviae of mesopleuron; 216 – subimaginal exuviae of half of mesonotum; 217–218 – exuviae of fore and hind legs of male subimago; 219–220 – fore and middle legs of male imago; 221 – male imago; 222 – female imago; 223 – subimaginal exuviae of abdominal segments VIII–IX; 224 – egg (215–220 – holotype).