CLADOENDESIS OF EPHEMEROPTERA
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Stenonema/g3

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Branchitergaliae
Heptagennota Pentamerotarsata Radulapalpata 
Heptagenia/f5=g4Ecdyonurus/fg1Heptagenia/f6=g5KageroniaHeptagenia/f7=g6 Stenonema/fg1  
Stenonema/fg2 - Stenonema/fg3)

Nomen hierarchicum: Stenonema/fg3 [f:2004; g:1933] (sine Maccaffertium)

In circumscription fits:

— subgen. Stenonema: Bednarik 1979: 190

— Stenonema/fg3: Kluge 2004: 174

References. Bednarik 1979: ; – Bednarik & McCafferty 1979: ; – Kluge 2004: * * * *.

Character of Stenonema/fg3 of unclear phylogenetic status.

(1) Tergalii I–VI [see Stenonema/fg2 (1)] with rounded apex (Edmunds & al. 1976: Fig.126). The same in Macdunnoa.

Size. Fore wing length 10–13 mm. 

Distribution. Eastern Nearctic.

Nominal species in Stenonema/fg3: 1 species

birdi Traver (in Needham & Traver & Hsu) 1935 [Stenonema] — syn.subj. femorata [Baetis]

femorata Say 1823 [Baetis] /

scitulum Traver 1935 [Stenonema] — syn.subj. femorata [Baetis]

tripunctata Banks 1910 [Heptagenia] — typus nominis Stenonema — syn.subj. femorata [Baetis]

See also:

Radulapalpata INCERTAE SEDIS