CLADOENDESIS OF EPHEMEROPTERA
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CLADOENDESIS OF EPHEMEROPTERA |
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Nesameletus/f2=Metamonius/g2
(Panephemeroptera
Euephemeroptera
Euplectoptera
Anteritorna
pm.Tridentiseta
Nesameletus/f1=Metamonius/g1
- Nesameletus/f2=Metamonius/g2)
Nomen hierarchicum:
Nesameletus/f2=Metamonius/g2
[f:1973; g:1885]
(sine Siphluriscus)
In circumscription fits:
— Nesameletus complex: Penniket 1961
— subfam. Nesameletinae Riek 1973: 164
— fam. Metamoniidae McCafferty 1991a: 349
— fam. Nesameletidae: Kluge & Studemann & Landolt & Gonser 1995: 115
— Nesameletus/f2=Metamonius/g2: Kluge 2004: 109
Nominal taxa included:
Nesameletus/fg
[f:1973; g:1933]
Metamonius/fg
[f:1991; g:1885]
Ameletoides/g
[g:1933]
References. Eaton 1833-1888
(Metamonius): 
';
– Ulmer 1904
(Nymphe des Baetis-Typus): 
';
– Tillyard 1933
(Ameletoides, Nesameletus): '
';
– Riek 1955 (Ameletoides):
' ';
– Demoulin 1955b (Metamonius): 
';
– 1955c
(Metamonius): ';
– Kimmins 1960 (Metamonius): 
';
– Koss & Edmunds 1974:
*;
– Edmunds 1975: *;
– Kluge & al. 1995:
* 
*
*;
– Kluge 2004: *
* *.
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Autapomorphies of Nesameletus/f2=Metamonius/g2. (1) Mandible [see Nesameletus/f1=Metamonius/g1 (1)] is elongate perpendicular to axis of articulation (Kluge 2004: Fig.31:D). (2) On maxilla 1st dentiseta is very massive, sclerotized, pressed to canines [shortened – see Nesameletus/f1=Metamonius/g1 (2)] (Kluge 2004: Fig.31:A-C). The same in selected taxa among Tetramerotarsata. (3) 2nd and 3rd dentisetae [situated on a common base – see Nesameletus/f1=Metamonius/g1 (3)] are weak, their common base represents a wide thin plate (Kluge 2004: Fig.31:A). (4) Larval claw on inner side has 2 longitudinal rows of small denticles. Non-unique apomorphy (see Index of characters [1.2.21]). (5) On each tergalius II–VII anal rib bifurcates near base, its anterior branch is situated on dorsal surface and passes near middle of tergalius [see Nesameletus/f1=Metamonius/g1 (9)], and posterior branch is situated on anal margin and represents a 3rd (additional) rib. Similar 3 ribs are present also in Rallidens and Isonychia/fg1. (6) Subimaginal lateral pigmented sclerotized area of mesonotum has peculiar form and includes whole anterior part of lateroscutum (Kluge 2004: Fig.30:D). The same in Ameletopsis/fg1. |
Size. Fore wing length 12–17 mm.
Distribution. Notogea: Australia, New Zealand and Chile-Patagonian Region of South America.
Nominal species in Nesameletus/f2=Metamonius/g2:
anceps Eaton 1883 [Siphlurus]
— typus nominis
Metamonius
-
austrinus Hitchings & Staniczek 2003 [Nesameletus]
flavitinctus
Tillyard 1923 [Ameletus]
fuegiensis Lestage 1935 [Ameletus]
— syn.subj. anceps [Metamonius]
lacusalbinae Tillyard 1933 [Ameletoides]
— typus nominis Ameletoides
murihiku Hitchings & Staniczek 2003
[Nesameletus]
ornatus Eaton 1883 [Chirotonetes]
— typus nominis Nesameletus
,/,//
vulcanus Hitchings & Staniczek 2003 [Nesameletus]
See also:
Nesameletus spp.
Metamonius spp.
Ameletoides spp.
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