(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna pm.Tridentiseta  
Siphlonurus/fg1 Parameletus/fg1 - Siphlonisca)

Nomen hierarchicum: Siphlonisca/g(1) [g:1909]

In circumscription fits:

— gen. Siphlonisca Needham 1909: 72

— Siphlonisca/g(1): Kluge 2004: 79

References. Needham & Traver & Hsu 1935: ; – Edmunds & Jensen & Berner 1976: ; – Burian & Gibbs 1988: ; – Kluge 2004: .

Autapomorphies of Siphlonisca.

(1) Maxilla lacks apical-ventral row of setae (unlike all other Siphlonurus/fg1). Non-unique apomorphy (see Index of characters [1.1.31]).

(2) In imago and subimago of both sexes abdominal segments V–IX have large lateral lobes; non-unique apomorphy, similar lobes in selected species of Oniscigaster/fg2 and some others. 

Plesiomorphies of Siphlonisca. Unlike Parameletus/fg2: On hind wing MP with bifurcation proximad of wing middle. 2nd segment of labial palp has no projection.

Size. Fore wing length 15–17 mm.

Distribution. Eastern Nearctic.

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

aerodromia Needham 1909 [Siphlonisca] — typus nominis Siphlonisca --/

See also:  

Siphlonurus/fg1 incertae sedis