CLADOENDESIS OF EPHEMEROPTERA

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Kluge 2004: Fig.89

 Figure 89. Ephemerella/fg1, schemes.

AB section of imaginal scutellum (arrow shows phragma): A Ephemerella/fg5 aurivillii [Chitonophora]; B Tricorythodes/fg1 cubensis [Tricorythodes]. CG tergalii, ventral view (upper row) and lateral view (lower row): C most of Ephemerella/fg3; D some Eurylophella/fg2; E Leptohyphes/fg2; F Tricorythodes/fg1; G Tricorygnatha, Ephemerythus, Teloganodes. HJ position of setae on larval fore femur (above) and middle or hind femur (below): H Ephemerella/fg2 (not all); I Pantricorythi (not all); J Tricorygnatha. KM transformation of cubital field venation from initial for Ephemerella/fg1 (K) to that of Tricoryptera (M). (AJ from Kluge 1992c; KL from Kluge 1997b).

Abbreviations: d dorsal lobe of tergalius; ISL infrascutellum; MPN mediopostnotum; MTN metanotum; SL scutellum; v ventral lobe of tergalius; v:a anal branch of ventral lobe; v:c costal branch of ventral lobe.