Tillyardocaenis

CLADOENDESIS OF EPHEMEROPTERA
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Plesiomorphon Tillyardocaenis

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae
Fimbriatotergaliae Caenotergaliae Caenoptera Caenis/f3=g1MadecocercusCaenis/f4=g2 - pm.Tillyardocaenis)

Nomen hierarchicum: Tillyardocaenis/g(1) [g:2004]

In circumscription fits:

— plesiomorphon Tillyardocaenis/g(1): Kluge 2004: 287

References. Malzacher 1987 (Tasmanocoenis, partim): ; – 1991 (Tasmanocoenis, partim): ; – 1997 (Tasmanocoenis, partim): ; – Alba-Tercedor & Suter 1990 (Tasmanocoenis, partim): ; – Kluge 2004: * * * *

Plesiomorphy of Tillyardocaenis. Unlike Caenis/f5=g3, gonostylus retains a longitudinal groove [see Caenoptera (5)]; gonostyli are strong, sclerotized and sharply bowed (Kluge 2004: Fig.86:C–E).

Size. Fore wing length 2–4 mm.

Distribution. Australia.

Nominal species in Tillyardocaenis/g(1):

arcuata Alba-Tercedor & Suter 1990 [Tasmanocoenis]

jillongi Harker 1957 [Tasmanocoenis]

scotti Tillyard 1936 [Caenis] nom. praeocc. — syn.obj. tillyardi [Caenis]

tillyardi Lestage 1938 [Caenis] — typus nominis Tillyardocaenis //,///