CLADOENDESIS OF EPHEMEROPTERA

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z 

Characters of Electroletus of unclear phylogenetic status.

(1) In cubital field of fore wing, veins, which go from CuA to wing margin [see Anteritorna (1)], are substituted by a pair of intercalaries. Non-unique apomorphy (see Index of characters [2.2.52]); the same in Metreletus.

(2) On middle and hind legs of imago and subimago tarsus is longer than tibia; first tarsal segment [fused with tibia – see Plesiomorphies of Ameletus/fg1] is longest. In this respect Electroletus differs both from Ameletus/fg2 and Metereletus, whose middle and hind tarsi are shorter.