CLADOENDESIS OF EPHEMEROPTERA
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Plesiomorphon Leptophlebia/fg2

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae  
Leptophlebia/fg1 - pm.Leptophlebia/fg2)

Nomen hierarchicum: Leptophlebia/fg2 (sine Atalophlebia; incl. Neoleptophlebia, Habrophlebiodes, Dipterophlebiodes)

In circumscription fits:

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References.  

Plesiomorphies of Leptophlebia/fg2. 

Unlike Atalophleboadentata, maxilla retains 3 canines [vestigial - see Leptophlebia/fg1 (1)]; unlike  Atalophleboadentata-Atalophlebopectinata, dentisetae are present and non-pectinate. 

In larva, imago and subimago patella-tibial suture is developed on middle and hind legs, being absent on fore legs only (see Index of characters [1.2.18], ibid. [2.2.82]).

Imaginal and subimaginal claws of all legs are ephemeropteroid (only in selected species claws of fore leg of male imago have shortened hook, so are nearly blunt) (see Index of characters [2.2.85]).

Size. Fore wing length 5–13 mm.

Age and istribution. Palaeogene – recent; Holarctic.

The plesiomorphon Leptophlebia/fg2 is divided into:

1. Leptophlebia/fg3

1.1. plesiomorphon Paraleptophlebia

1.2. Leptophlebia/fg4

2. Neoleptophlebia

3. Habrophlebiodes/g1  

3.1. Habrophlebiodes/g2  

3.2. Dipterophlebiodes/g1

3.2.1. Dipterophlebiodes/g2

3.2.2. Gilliesia

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