CLADOENDESIS OF EPHEMEROPTERA |
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Neoephemera/fg2
(Panephemeroptera
Euephemeroptera
Euplectoptera
Anteritorna
Bidentiseta
Furcatergaliae
Fimbriatotergaliae
Caenotergaliae
Neoephemera/fg1
- Neoephemera/fg2)
Nomen hierarchicum: Neoephemera/fg2 [f:1935; g:1925] (sine Ochernova, Leucorhoenanthus, Potamanthellus; incl. Oreianthus)
In circumscription fits:
— subgen. Neoephemera : Demoulin 1961: 57;
— gen. Neoephemera McDunnough 1925: 168;
— subfam. Neoephemerinae: Needham & Traver & Hsu 1935: 288
— Neoephemera/fg2: Kluge 2004: 275
Nominal taxon included: Oreianthus/g [g:1931]
References. Traver 1931 (Oreianthus): ' '; – Needham & Traver & Hsu 1935: * *; – Berner, 1956: * *; – Edmunds & Jensen & Berner 1976: * *; – Kluge 2004: * * * *
Autapomorphies of Neoephemera/fg2. (1) Larval thoracic terga with more or less expressed protuberances; these are: a pair of submedian protuberances on anterior part of pronotum on the crest bordering collar [see Fimbriatotergaliae (1)]; a pair of submedian protuberances on anterior part of mesonotum on the crest bordering collar [see Caenotergaliae (5)]; and an unpaired protuberance near posterior margin of mesonotum. Non-unique apomorphy; variable dorsal protuberances occur in some other mayflies, but not in other Neoephemera/fg1. Plesiomorphies of Neoephemera/fg2. Unlike Potamanthellus/g1, larval caudalii without secondary swimming setae. In imago and subimago all claws are ephemeropteroid, including male fore legs. Gonostyli are not diminished, median incision of penis is small (unlike Potamanthellus/g1). Imaginal paracercus is well-developed (unlike Leucorhoenanthus and Potamanthellus/g1). |
Size. Fore wing length 8–17 mm.
Distribution. Eastern Nearctic.
Nominal species in Neoephemera/fg2:
bicolor McDunnough 1925 [Neoephemera]
compressa Berner 1956 [Neoephemera]
eatoni Holland & Beaty & Jacobus 2016 [ Neoephemera]
purpureus Traver 1931 [Oreianthus]
youngi Berner 1953 [Neoephemera] -,
See also:
Neoephemera/fg1 INCERTAE SEDIS
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