CLADOENDESIS OF EPHEMEROPTERA
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Figure 76. Cryptoprosternata, larval head.

A–C – Polymitarcys/f2=Ephoron/g3 Eopolymitarcys/g* nigridorsum [Eopolymitarcys]: A – median section of head (compare with Figs 69:G, I, 67:C); B – head, lateral view (instead of long setae, their bases and occupied area are shown); C – head, dorsal view (on right setae are not shown). D–E – Palingenia/f3=g2: D – Anagenesia/g1 Chankagenesia/g* natans [Chankagenesia], right mandible, dorsal view, separately enlarged denticle terminated by a spine-like seta; E – Palingenia/f4=g3 longicauda [Ephemera], lateral margin of mandibular tusk. (C–E – from Kluge 1997d).

Abbreviations: cly – clypeus; fr – frons; i – incisor; kd – kinetodontium; lbr – labrum; m – mola; md – mandibular tusk; p.lb – labial palp; p.mx – maxillary palp; tnt – tentorium.