CLADOENDESIS OF EPHEMEROPTERA

CLADOENDESIS OF EPHEMEROPTERA
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Leptophlebia/fg4

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae
Leptophlebia/fg1 pm.Leptophlebia/fg2 Leptophlebia/fg3 - Leptophlebia/fg4)

Nomen hierarchicum: Leptophlebia/fg4 [f:1900; g:1840] (sine Paraleptophlebia; incl. Blasturus)

In circumscription fits:

— subgen. Leptophlebia: Jacob 1974a: 4

— gen. Leptophlebia Westwood 1840: 31

Synonym: subjective synonym of Leptophlebia/fg (typus Ephemera vespertina) – Euphyurus/g [g:1909] (typus Euphyurus albitarsus) (subjective synonymy: vespertina [Ephemera] = albitarsus [Euphyurus])

Nominal taxon included: Blasturus/g [g:1881]

References. Lestage 1917: *; – Peters & Edmunds 1970: * *; – Edmunds & Jensen & Berner 1976: * *

Autapomorphy of Leptophlebia/fg4.

(1) In mature larva, tergalii I and II–VII are sharply different. Tergalius I retains initial structure [see Leptophlebia/fg1 (10)] – slender, bifurcate. Tergalii II–VII have each of two branches [divided nearly up to base – see Leptophlebia/fg3 ()] lamelliformly widened in proximal part (distal part remains to be narrow and pointed); the lamelliform proximal part can have two distal processed by sides of the narrow distal part (in this case each lamella looks three-pointed), or these processes are absent. Non-unique apomorphy, the same in some Atalophlebia/fg3.

() Penis ...?

Size. Fore wing length 5–13 mm.

Distribution. Holarctic.

Nominal species in Leptophlebia/fg4:

albitarsus Bengtsson 1909 [Euphyurus] — typus nominis Euphyurus — syn.subj. vespertina [Ephemera]