CLADOENDESIS OF EPHEMEROPTERA
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Timpanoga/fg4

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae  
Ephemerella/fg1Tricorythus/fg1Ephemerella/fg2  
Timpanoga/fg1AttenellaTimpanoga/fg2Euylophella/fg1Timpanoga/fg3 - Timpanoga/fg4)

Nomen hierarchicum: Timpanoga/fg4 [f:1984; g:1927] (sine Dannella)

In circumscription fits:

— subgen. Timpanoga Needham 1927: 115

— gen. Timpanoga: Demoulin 1954e: 324

— Timpanoga/fg4: Kluge 2004: 303

References. Edmunds 1959: ; – Allen & Edmunds 1959: ; – Edmunds & Jensen & Berner 1976: ; – McCafferty & Wang 1994a (subgen.): ; – Kluge 2004:

Autapomorphies of Timpanoga/fg4.

(1) Larval frons anteriorly forms a shield, which is widened anteriorly and covers from above clypeus and mouthparts.

(2) In larva each femur apically with a spine-like projection.

Size. Fore wing length 12–14 mm. 

Distribution. Western Nearctic

Nominal species in Timpanoga/fg4: 1 species 

hecuba Eaton 1884 [Ephemerella] — typus nominis Timpanoga — typus nominis Timpanoga

pacifica Allen & Edmunds 1959 [Ephemerella (Timpanoga) hecuba]

See also: 

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