CLADOENDESIS OF EPHEMEROPTERA
Eusetisura Discoglossata Geminovenata - Fittkauneuria)
Nomen hierarchicum: Fittkauneuria/g(1) [g:1994]
In circumscription fits:
— gen. Fittkauneuria Pescador & Edmunds 1994: 264
— Fittkauneuria/g(1): Kluge 2004: 147
Reference. Pescador & Edmunds 1994: .
Autapomorphies of Fittkauneuria.
(1) Gonostyli are lost. Non-unique apomorphy [see Geminovenata (6)], the same in Homoeoneuria/g2.
Character of Fittkauneuria of unclear phylogenetic status.
(3) Tergalii II–VII with dense row of long setae on anal margin. The same in Homoeoneuria/g1; possibly, synapomorphy.
Plesiomorphies of Fittkauneuria. On fore wing RSa+iRS is present (unlike Elassoneuria/g1 and Homoeoneuria/g2), not approximated to RA (unlike Lachlania and Oligoneuria/f5=g6); bifurcation of MA is situated near wing base (unlike Elassoneuria/g1). In male imago on tarsus of middle and hind leg [non-functional – see Geminovenata (2)] before the last (claw-bearing) segment, 3 short segments are present (if not take into account the 1st segment, which is fused with tibia, shortened and not expressed), thus tarsus looks as 4-segmented. Paracercus is well-developed (in larva shortened, 2 times shorter than cerci, in imago only slightly shorter than cerci).
Size. Fore wing length 12 mm.
Distribution. Neotropical Region.
Nominal species in Fittkauneuria/g(1):
adusta Pescador & Edmunds 1994 [Fittkauneuria]
carina Pescador & Edmunds 1994 [Fittkauneuria]