CLADOENDESIS OF EPHEMEROPTERA

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Leucorhoenanthus

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae  
Fimbriatotergaliae Caenotergaliae Neoephemera/fg1 - Leucorhoenanthus)

Nomen hierarchicum: Leucorhoenanthus/g(1) [g:1931]

In circumscription fits:

subgen. Caenomera Demoulin 1961: 66

gen. Leucorhoenanthus Lestage 1931b: 134

Leucorhoenanthus/g(1): Kluge 2004: 275

Synonyms: subjective synonym of Leucorhoenanthus/g (typus macedonicus [Rhoenanthus]) is Caenomera/g [g:1961] (typus  maxima [Caenis]) (subjective synonymy: maxima [C.] = macedonicus [Rh.])


References. Joly 1871 (Caenis maxima): ; Eaton 18831888 (Tricorythus sp.): ; Ulmer (1919)1920:180 (Rhoenanthus macedonicus): ; Kazlauskas 1959: ; Ikonomov 1962: ; Jazdzewska 1975: ; Kluge 2004:


Characters of Leucorhoenanthus of unclear phylogenetic status. 

(1) Imaginal and subimaginal paracercus is vestigial, consists of several segments. Non-unique apomorphy (see Index of characters [2.3.22]); among Neoephemera/fg1 the same in Potamanthellus/g1; possibly synapomorphy.

(2) On fore leg of male imago both claws are blunt (in subimago ephemeropteroid). Non-unique apomorphy (see Index of characters [2.2.77]); among Neoephemera/fg1 the same in Potamanthellus/g1; possibly synapomorphy.

Plesiomorphies of Leucorhoenanthus. In larva: thoracic terga without protuberances (unlike Neoephemera/fg2); caudalii without secondary swimming setae (unlike Potamanthellus/g1). In imago: gonostyli are not diminished; median incision of penis is small (unlike Potamanthellus/g1). Larval and adult patella-tibial suture is developed on middle and hind legs (Kluge 2004: Fig.83:G) (unlike Ochernova).

Size. Fore wing length 811 mm. 

Distribution. Europe.


Nominal species in Leucorhoenanthus/g1: 1 species

macedonicus Ulmer 1920 [Rhoenanthus] typus nominis Leucorhoenanthus syn.subj. maxima [Caenis

maxima Joly 1871 [Caenis] typus nominis Caenomera --/


See also:

Neoephemera/fg1 INCERTAE SEDIS

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