CLADOENDESIS OF EPHEMEROPTERA
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Figure 21. Dipteromimus, Ameletus/fg1 and Metretopus/fg1.

A – Dipteromimus/fg* tipuliformis [Dipteromimus], subimaginal exuviae of right half of mesonotum. B–C – Ameletus/fg1: B – Ameletus/fg2 montanus [Ameletus], subimaginal exuviae of right half of mesonotum; C – Metreletus/g* balcanicus [Metretopus], imaginal pterothorax, lateral view. D–E – Metretopus/fg1: D – Metreplecton/g* macronyx [Metreplecton], subimaginal exuviae of right half of mesonotum; E – Siphloplecton/fg* basale [Baetis], the same. (From Kluge & Studemann & Landolt & Gonser 1995)

Abbreviations: AEM/KEM – membranous area between anepimeron and katepimeron; FSp – furcasternal protuberance; KES – katepisternum; LPs – lateroparapsidal suture; LS – lateroscutum; MNs – mesonotal suture; MPs – medioparapsidal suture; MS – medioscutum; SLS – sublateroscutum; SMS – submedioscutum; SrA – suralare.