CLADOENDESIS OF EPHEMEROPTERA |
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Plesiomorphon Hexagenia/fg3
(Panephemeroptera
Euephemeroptera
Euplectoptera
Anteritorna
Bidentiseta
Furcatergaliae
Fimbriatotergaliae
Fossoriae
Ephemera/fg9
Hexagenia/fg1
Eatonica/g1Hexagenia/fg2
- pm.Hexagenia/fg3)
Nomen hierarchicum:
Hexagenia/fg3
[f:1991; g:1863] (sine Pseudeatonica)
In circumscription fits:
— subgen. Hexagenia: McCafferty 1970: 225
— gen. Hexagenia: Kimmins 1960: 309
— plesiomorphon Hexagenia/fg3: Kluge 2004: 241
References. Needham & Traver
& Hsu 1935: *
*; – Edmunds & Jensen & Berner 1976
(subgen.):
*
*; – McCafferty 1970:
*; – 1975:
*; – 1979b:
*; – Kluge
2004:
*
*
*
Plesiomorphy of Hexagenia/fg3. Imaginal and subimaginal gonostylus with 2 distal segments (unlike Pseudeatonica and some of Eatonica/fg1). Only in selected specimens of Hexagenia/fg3 distal segments of gonostyli are separated indistinctly or fused one with another. |
Size. Fore wing length 10–25 mm.
Distribution. Nearctic; probably also Palaeogene of Palaearctic (see Denina in Ephemera/fg9 INCERTAE SEDIS).
Nominal species in Hexagenia/fg3:
affiliata McDunnough 1927 [Hexagenia]
— syn.subj. limbata [Ephemera]
angulata
Walker 1853 [Baetis]
— syn.subj. limbata [Ephemera]
atrocaudata
McDunnough 1924 [Hexagenia]
californica Upholt 1937 [Hexagenia]
— syn.subj. limbata [Ephemera]
carolina
Traver 1931 [Hexagenia]
— syn.subj. limbata [Ephemera]
elegans Traver 1931 [Hexagenia]
— syn.subj. limbata [Ephemera]
falcata Needham 1921 [Hexagenia bilineata]
kanuga
Traver 1937 [Hexagenia]
— syn.subj. limbata [Ephemera]
limbata Serville (in Guerin) 1829 [Ephemera]
— typus nominis Hexagenia
,
,
/
marilandica Traver 1931 [Hexagenia]
— syn.subj. limbata [Ephemera]
mingo
Traver 1931 [Hexagenia]
— syn.subj. limbata [Ephemera]
munda Eaton 1883 [Hexagenia]
— syn.subj. limbata [Ephemera]
occulta Walker
1853 [Palingenia]
— syn.subj. limbata [Ephemera]
orlando Traver 1931 [Hexagenia]
pallens
Traver (in Needham & Traver & Hsu)
1935 [Hexagenia]
— syn.subj. limbata [Ephemera]
rigida
McDunnough 1924 [Hexagenia]
rosacea Traver 1931 [Hexagenia]
— syn.subj. limbata [Ephemera]
variabilis
Eaton 1883 [Hexagenia]
— syn.subj. limbata [Ephemera]
venusta Eaton 1883 [Hexagenia]
— syn.subj. limbata [Ephemera]
viridescens
Walker 1853 [Palingenia]
— syn.subj. limbata [Ephemera]
weewa Traver 1931 [Hexagenia]
— syn.subj. limbata [Ephemera]