CLADOENDESIS OF EPHEMEROPTERA
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Arcobaetis

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna pm.Tridentiseta
Tetramerotarsata Liberevenata Turbanoculata
Anteropatellata Baetovectata Baetungulata Nigrobaetis/g1 - Arcobaetis)

Nomen hierarchicum: Arcobaetis/g(1) [g:2023]

In circumscription fits:

— gen. Procerobaetis Kaltenbach & Kluge & Gattolliat 2023: 233.

References. Kaltenbach & Kluge & Gattolliat 2023:

Autapomorphies of Arcobaetis.

(1) Paraglossae with a dorsal arc of long setae in distal area (Kaltenbach & Kluge & Gattolliat 2023: Fig. 2h, 7h, 10h, 14g).

(2) Distal segment of gonostylus [3rd – see Liberevenata (5)] is extraordinarily small, much narrower than apex of 2nd segment (Kaltenbach & Kluge & Gattolliat 2023: Fig. 18).

Characters of Procerobaetis of unclear phylogenetic status.

(3) Hind wing absent (see Index of characters [2.2.59]).

Size. Fore wing length 3.5 mm (see Tetramerotarsata).

Distribution. Oriental Region.

Nominal species in Arcobaetis/g(1):

bornensis Kaltenbach & Kluge & Gattolliat 2023 [Arcobaetis]

gracilentus Chang & Yang (in Kang & Chang & Yang) 1994 [Baetis (Margobaetis)]

sripadai Kaltenbach & Kluge & Gattolliat 2023 [Arcobaetis] — typus nominis Arcobaetis --

sumatrensis Kaltenbach & Kluge & Gattolliat 2023 [Arcobaetis]

sumbawensis Kaltenbach & Kluge & Gattolliat 2023 [Arcobaetis]

Examined also: