CLADOENDESIS OF EPHEMEROPTERA

CLADOENDESIS OF EPHEMEROPTERA
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Siphlonurus/fg3

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna pm.Tridentiseta
Siphlonurus/fg1_{Parameletus/fg1}Siphlonurus/fg2_EdmundsiusSiphlonurus/fg3)

Nomen hierarchicum: Siphlonurus/fg3 [f:1888; g:1868] (sine Edmundsius; incl. Siphlurella).

In circumscription fits:

— gen. Siphlonurus Eaton 1868b: 89

— gen. Siphlurus Eaton 1871: 125

— Siphlonurus/fg3: Kluge 2004: 75

References. Eaton 1883-1888: *; – Needham & Traver & Hsu 1935: * *; – Edmunds & Jensen & Berner 1976: * *; – Studemann & Landolt 1997b: electromorph; – Kluge 2004: * * * *.

Autapomorphies of Siphlonurus/fg3.

(1) Dorsal and ventral lamellae of tergalii I–II [see Siphlonurus/fg2 (1)] are subequal, each lamella has a peculiar bipointed shape, like a fish tail (Kluge 1982: Fig.3; 1985: Fig.3; Kluge 2004: Fig.3:A). Unique apomorphy.

Size. Fore wing length 9–24 mm.

Distribution. Holarctic.

The taxon Siphlonurus/fg3 is divided into:

1. plesiomorphon Siphlonurus/fg4

2. Siphlurella