CLADOENDESIS OF EPHEMEROPTERA
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CLADOENDESIS OF EPHEMEROPTERA |
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Anepeorus/fg1
(Panephemeroptera
Euephemeroptera
Euplectoptera
Anteritorna
Bidentiseta
Branchitergaliae
Heptagennota
Pentamerotarsata
INCERTAE SEDIS)
Nomen hierarchicum:
Anepeorus/fg1
[f:1962; g:1925] (incl. Spinadis)
In circumscription fits:
— gen. Anepeorus McDunnough 1925: 190
— gen. Spinadis Edmunds & Jensen 1974: 495
— subfam. Spinadinae Edmunds & Jensen 1974: 495
— Anepeorus/fg1: Kluge 2004: 209
Nominal taxon included: Spinadis/fg
[fg:1974]
References.
McDunnough 1925: 
; –
Needham & Traver & Hsu 1935: ;
– Burks 1953: (non 
);
– Edmunds & Jensen 1974 (Spinadis): ;
– Edmunds & Jensen & Berner 1976 (Anepeorus):
(non ); – ibid. (Spinadis):
; – McCafferty &
Provonsha 1984: 
;
– 1985: ; – 1986 (Spinadis):
.
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Characters of Anepeorus/fg1 of unclear phylogenetic status. (1) Mouth apparatus is adapted for carnivorism: Mandible is shortened perpendicular to axis of articulation, mola lacks grater. Superlinguae are vestigial. Maxilla lacks apical-ventral setae, its biting margin is shortened and both dentisetae are enlarged (McCafferty & Provonsha 1986: Fig.8,11,14). Non-unique apomorphy (see Index of characters [1.1.12]). (2) Maxillary palp is 2-segmented (as in majority of other Pentamerotarsata, unlike Pseudiron). (3) Larval paracercus is vestigial. Non-unique apomorphy (see Index of characters [1.3.64]); among Pentamerotarsata the same in Epeorus/fg1 and Acanthomola only. Plesiomorphy of Anepeorus/fg1. Paraglossae are not widened (unlike Radulapalpata). |
Size. Fore wing length 7–10 mm.
Distribution. Nearctic.
Nominal species in Anepeorus/fg1:
rusticus McDunnough
1925 [Anepeorus]
simplex
Walsh 1863 [Heptagenia]
wallacei
Edmunds & Jensen 1974 [Spinadis]
— syn.subj.
simplex [Heptagenia]
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