CLADOENDESIS OF EPHEMEROPTERA
Heptagennota Pentamerotarsata Radulapalpata Heptagenia/f5=g4
Ecdyonurus/fg1 - Leucrocuta/f1=Afghanurus/g1)
Nomen hierarchicum: Leucrocuta/f1=Afghanurus/g1 [f:2004; g:1964]
In circumscription fits:
— gen. Paracinygmula: Jacob & Dorn & Haybach 1995: 99
— Afghanurus/g1: Kluge 2004: 180
References. Kluge 2004: * * * *
Autapomorphy of Leucrocuta/f1=Afghanurus/g1.
(1) Ventral sclerites of penis distad-laterad of titillators [see Pentamerotarsata (5)], bear one or several pairs of denticles ("discal spines") directed distally-laterally (Kluge 1980: Fig.64,71,83,90,103). Only in a few species these "discal spines" are secondarily lost.
Character of Leucrocuta/f1=Afghanurus/g1 of unclear phylogenetic status.
(2) In male imago 1st segment of fore tarsus is always short, several times shorter than 2nd segment. Non-unique character (see Index of characters [2.2.76]).
Plesiomorphies of Leucrocuta/f1=Afghanurus/g1. Median titillators of penis [see (1)] are well-developed, contiguous medially (unlike Afronurus/g1). Larval pronotum has no posterolateral projections (unlike Ecdyonurus/fg2). Distal dentiseta is simple (unlike Atopopus/fg1).
Size. Fore wing length 5–10 mm.
Distribution. Holarctic (dominate in Eastern Palaearctic and Nearctic).
|The taxon Leucrocuta/f1=Afghanurus/g1 is divided into:|
1. plesiomorphon Afghanurus/g2
2.2.1. plesiomorphon Ecdyogymnurus
Some insufficiently described species have uncertain systematic position