CLADOENDESIS OF EPHEMEROPTERA
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Figure 40. Isonychia/fg2 ignota [Baetis].

A–B – fore and hind wings; C – thoracic terga of larva of beginning of last instar (larval hind protopteron shown by interrupted line at right half, hypodermal parts shown by dotted line); D – subimaginal exuviae of right half of mesonotum; E – imaginal pterothorax, ventral view; F – the same, lateral view. (F – from Kluge 1998).

Abbreviations: AES – anepisternum; FSp – fused furcasternal protuberance; KES – katepisternum; LPs – lateroparapsidal suture; MNs – mesonotal suture; MPs – medioparapsidal suture; PCxsA – anterior paracoxal suture; SMS – submedioscutum.