CLADOENDESIS OF EPHEMEROPTERA

CLADOENDESIS OF EPHEMEROPTERA
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Isca/g2

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae
Leptophlebia/fg1 Atalophleboadentata Atalophlebopectinata Atalophleboculata Atalophlebomaxillata Atalophlebolinguata
...Isca/fg1 - Isca/fg2)

Nomen hierarchicum: Isca/fg2 [g:1951] (sine Notophlebia; incl. Minyphlebia, Tanycola)

In circumscription fits:

— gen. Isca Gillies 1951: 127

Nominal taxa included:

Minyphlebia/g [g:1970]

Tanycola/g [g:1970]

References. Peters & Edmunds 1970: * *

Autapomorphies of Isca/fg2.

(1) Abdominal tergites extend around to venter of abdomen, thus tergalii [see (2)] are attached ventrally [see Isca/fg1 (3)].

(2) Tergalii I are lost, and tergalii II are the largest. Tergalii II–VI are bilamellate [see Leptophlebia/fg1 (10)]; tergalii VII either also bilamellate (in lea [Isca]) or unilamellate (in other know species).

(3) Moult from subimago to imago occurs in male only, being lost in female (see Index of characters [2]) [adults are shortly-moulting – see Isca/fg1 (4)].

Characters of Isca/fg2 of unclear phylogenetic status.

(4) Larvae of all species have uniform structure: ???

Size. Fore wing length 2.5–4.5 mm.

Distribution. Oriental Region.

Nominal species in Isca/fg2:

fasciata Nguyen & Bae 2003 [Isca]

janiceae Peters & Edmunds 1970 [Isca (Minyphlebia)] — typus nominis Minyphlebia

lea Sartori & Derleth 2010 [Isca]

purpurea Gillies 1951 [Isca] — typus nominis Isca --/