(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae  
Fimbriatotergaliae Caenotergaliae Caenoptera Caenis/f3=g1
- Caenopsella/g1)

Nomen hierarchicum: Caenopsella/g1 [g:1977] (incl. Afrocaenis)

In circumscription fits:

 gen. Caenopsella: Gillies 1977: 451

 Caenopsella/g1: Kluge 2004: 290

References. Gillies 1977: ; Malzacher 1991: ; 1993: ; Kluge 2004:

Autapomorphy of Caenopsella/g1.

(1) Eyes of male are much larger than in female; width of eye is greater than half of distance between eyes, length of eye exceeds head length, thus eyes are projected posteriad of posterior head margin (Malzacher 1993: Fig.1). At the same time, eyes have the same shape as in female, and the same as in males of other Caenoptera spherical, without division to dorsal and ventral portion; this allows to conclude that male eyes of Caenopsella/g1 are enlarged secondarily, but not retain the sexual dimorphism initial for Ephemeroptera [see Caenoptera (15)].

Plesiomorphies of Caenopsella/g1. Maxillary palp is 3-segmented (unlike Clypeocaenis/g2). Gonostyli are nearly straight, with one or two thin apical processes (similar to some Caenis/f5=g3, which have several processes of such kind).

Size. Fore wing length 28 mm.

Distribution. Afrotropical Region.

The taxon Caenopsella/g1 is divided into:

1. plesiomorphon Afrocaenis

2. Caenopsella/g2