CLADOENDESIS OF EPHEMEROPTERA |
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Metreplecton
(Panephemeroptera
Euephemeroptera
Euplectoptera
Anteritorna
pm.Tridentiseta
Metretopus/fg1
- Metreplecton)
Nomen hierarchicum:
Metreplecton/g(1) [g:1996]
In circumscription fits:
— gen. Metreplecton Kluge 1996b: 77
— Metreplecton/g(1): Kluge 2004: 87
References. Kluge 1996b:
;
– 2004:
.
Characters of Metreplecton of unclear phylogenetic status. (1) Larval abdominal terga and sterna lack spine-like setae (the same in Metretopus/fg2, unlike Siphloplecton). (2) Tergalii IV–VII have denticles on costal margin [armed with rib – see Metretopus/fg1 (3)]; the same in Metretopus/fg2, unlike Siphloplecton. (3) Distal segment of labial palp [2nd+3rd – see Metretopus/fg1 (2)] is widest near apex (Kluge 2004: Fig.22:H) (the same in Siphloplecton, probably synapomorphy). (4) Cubital field of fore wing usually with 1 intercalary (Kluge 2004: Fig.22:A), selected specimens can have up to 3 intercalaries [see Metretopus/fg1 (5)]. |
Size. Fore wing length 11–13 mm.
Distribution. Northern Europe, Siberia and Russian Far East.
Nominal species in Metreplecton/g(1): 1 species
macronyx Kluge 1996 [Metreplecton]
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