CLADOENDESIS OF EPHEMEROPTERA

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Autapomorphies of Paracloeodes/g1.

() Left and right gonovectes are fused medially by their apices.

Characters of Paracloeodes/g1 of unclear phylogenetic status. 

() Larval antennae bases are brought together, frons between them forms a longitudinal keel. The same in some other taxa (see Index of charactes [1.1.3]).

() Mandibles of «Centroptilum-type»: kinetodontium is more or less separated from incisor (but immovable) and rotated perpendicular to the plane of mandible, so that its denticles hide one another in dorsal or ventral view; left prostheca is bifurcate and rotated in the same manner (see Index of characters [1.1.22], [1.1.24]).

() Larval abdominal terga lack wide scales [see Turbanoculata (12)] (see ?? Index of characters [1.3.4]).

() Tergalii are unable to make rhythmical respiratory movements. Non-unique apomorphy (see Index of characters [1.3.30])

() In mature larva ready to moult to subimago buds of subimaginal gonostyli [see Baetovectata (3)] are folded under larval cuticle by the "Labiobaetis-type" (2^nd segment directed medially, 3^rd segment bent anteriorly) (see Index of characters [2.3.9]) (unlike other Neotropical Turbanoculata).

Plesiomorphies of Paracloeodes/g1.

Unlike Baetungulata, claw with 2 rows of denticles.