CLADOENDESIS OF EPHEMEROPTERA
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Figure 39. Coloburiscus/fg1, imago and subimago.

A–C – Coloburiscus/fg* humeralis [Palingenia]: A – imaginal pterothorax, lateral view; B – the same, ventral view (nerve ganglions shown by interrupted lines); C – subimaginal exuviae of right half of mesonotum. D – Murphyella/g* needhami [Murphyella], the same. E – Coloburiscoides/g1 munionga [Coloburiscus], the same.

Abbreviations: AES – anepisternum; FSp – fused furcasternal protuberance; KES – katepisternum;
LPs – lateroparapsidal suture; MNs – mesonotal suture; MPs – medioparapsidal suture; PAB:DA – dorsal arc of prealar bridge; PCxsA – anterior paracoxal suture; SLS – sublateroscutum.