CLADOENDESIS OF EPHEMEROPTERA
Figs 5–9. Crassabwa flava. 5 – labium (at left ventral view, with muscles of glossa, paraglossa and palp shown by interrupted lines; at right dorsal view); 6 – apex of maxilla, dorsal view; 7 – dentisetae and setae of inner-dorsal row of another individual; 8 and 9 – left and right mandible of penultimolarva with developing ultimolarval mandibles inside. Abbreviations: ds1, ds2, ds3 – dentisetae.