CLADOENDESIS OF EPHEMEROPTERA
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Plesiomorphon Edmundsius

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna pm.Tridentiseta  
Siphlonurus/fg1Parameletus/fg1Siphlonurus/fg2 - pm.Edmundsius)

Nomen hierarchicum: Edmundsius/g(1) [g:1953]

In circumscription fits:

— gen. Edmundsius: Day 1953: 19

— Edmundsius/g(1): Kluge 2004: 75

References. Day 1953: ; – Edmunds & Jensen & Berner 1976: ; – Meyer & McCafferty & Silldorff 2003: ; – Kluge 2004: .

Plesiomorphies of Edmundsius. Unlike Siphlonurus/fg3, ventral (additional) lamella of tergalii I–II [see Siphlonurus/fg2 (1)] is much smaller than dorsal (main) lamella, both lamellae are not bipointed (Day 1953: Fig.7).

Size. Fore wing length 16 mm.

Distribution. California.

Nominal species in Edmundsius/g(1): 1 species 

agilis Day 1953 [Edmundsius] — typus nominis Edmundsius

See also: 

Siphlonurus/fg1 incertae sedis

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