Oligoneuria

CLADOENDESIS OF EPHEMEROPTERA
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Oligoneuria/f5=g6

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Branchitergaliae
Eusetisura Discoglossata Geminovenata Oligoneuria/f4=g5 - Oligoneuria/f5=g6)

Nomen hierarchicum: Oligoneuria/f5=g6 [f:1914; g:1843] (sine Lachlania, Spaniophlebia; incl. Oligoneurioides)

In circumscription fits:

— gen. Oligoneuria: Ulmer 1924a: 32

— Oligoneuria/f5=g6: Kluge 2004: 146

Nominal taxa included:
Oligoneurioides/g [g:1955]
Yawari/g [g:2013]

References. Pictet 1843-1845 (Oligoneuria anomala, partim): ; – Hagen 1855 (O. anomala): ; – Eaton 1883-1888: ; – Ulmer 1921 (O. anomala, typus): ; – Needham & Murphy 1924: ; – Spieth 1943: ; – Demoulin 1955a (Oligoneurioides, Spaniophlebia sp.): ; – Puthz 1973: ; – Kluge 2004: * *; – Kluge 2007: .

Autapomorphy of Oligoneuria/f5=g6.

(1) Styliger [which lacks gonostyli pedestals – see Geminovenata (6)] with a pair of long processes between bases of gonostyli (Demoulin 1955: Fig.17e; Kluge 2004: Fig.50:D; Kluge 2007: Fig.23) (unlike Lachlania and Spaniophlebia).

Characters of Oligoneuria/f5=g6 of unclear phylogenetic status (Table).

(2) Head with anterior projection (Kluge 2004: Fig.50:C, 51:D; Kluge 2007: Fig.1-3, 13,17-18, ). The same in Spaniophlebia [see Oligoneuria/f4=g5 (4)].

(3) On fore wing double vein RSa+iRS in proximal part is closely approximated to Sc+RA (Kluge 2004: Fig.50:A; Kluge 2007: Fig.19,21, ). The same in Lachlania [see Oligoneuria/f4=g5 (5)].

(4) Larval and imaginal paracercus is well-developed (Kluge 2007: Fig.1, 12). Unlike Lachlania and Spaniophlebia [see Oligoneuria/f4=g5 (6)].

Size. Fore wing length 8–15 mm.

Distribution. South America.

Nominal species in Oligoneuria/f5=g6:

amandae Salles & Soares & Massariol & Faria 2013 [Oligoneuria (Oligoneurioides)]

amazonicus Demoulin 1955 [Oligoneurioides]

anatina Massariol & Cruz 2015 [Oligoneuria (Yawari)]

anomala Pictet 1843 [Oligoneuria]

itayana Kluge 2007 [Oligoneuria] -// alae frons

macabaiba Gonçalves & Da-Silva & Nessimian 2011 [Oligoneuria]

mitra Salles & Soares & Massariol & Faria 2013 [Oligoneuria (Oligoneurioides)]

truncata Salles & Soares & Massariol & Faria 2013 [Oligoneuria (Yawari)] — typus nominis Yawari

Examined also:

sp.O4: Kluge 2004 (Brazil) (in T.Soldan's collection)

sp.O5: Kluge 2004 (Brazil) (in T.Soldan's collection)