CLADOENDESIS OF EPHEMEROPTERA |
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Timpanoga/fg2
(Panephemeroptera
Euephemeroptera
Euplectoptera
Anteritorna
Bidentiseta
Furcatergaliae
Ephemerella/fg1Tricorythus/fg1Ephemerella/fg2
Timpanoga/fg1
-
Timpanoga/fg2)
Nomen hierarchicum: Timpanoga/fg2
[f:1984; g:1927] (sine Attenella; incl.
Eurylophella)
In circumscription fits:
— Timpanoga/fg2: Kluge 2004: 301
References. McCafferty & Wang
1994a ("Eurylophella – Dentatella – Timpanoga
– Dannella" lineage): *; – Kluge 2004:
*
*
*
*
Autapomorphy of Timpanoga/fg2. (1) Tergalii are more or less operculate: Tergalius IV [the anteriormost among lamellate tergalii – see Timpanoga/fg1 (1)] is enlarged, covers not less than 1/2 of tergalius V. Abdominal segments bearing tergalii have enlarged lateral lobes: at least on each of abdominal segments V–VII posterolateral process is longer than segment in its middle part (Kluge 2004: Fig.91:I). Plesiomorphy of Timpanoga/fg2. Unlike Attenella, distal segment of gonostylus is not elongate. |
Size. Fore wing length 6–14 mm.
Distribution. Mainly Nearctic, also in Europe.
The taxon Timpanoga/fg2 is divided into: |