Lachlania

CLADOENDESIS OF EPHEMEROPTERA
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Lachlania/g1

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

Nomen hierarchicum: Lachlania/g1 [g:1868] (incl. Noya, Noyopsis, Alloydia)

In circumscription fits:

— gen. Lachlania Hagen 1868: 372

— Lachlania/g1: Kluge 2004: 145

Nominal taxa included:

Noya/g [g:1912] — syn. obj. Neophlebia/g [g:1912] nom.praeocc.

Noyopsis/g [g:1924]

Alloydia/g [g:1932]

References. Eaton 1883-1888: *; – Edmunds 1951: ; – Edmunds & Berner & Traver 1958: ; – Edmunds 1961: *; – Koss & Edmunds 1970: ; – Edmunds & Jensen & Berner 1976: * *; – Allen & Cohen 1977: ; – Kluge 2004: * * * *.

Characters of Lachlania of unclear phylogenetic status (Table)

(1) Larval head shield without anterior projection [see Oligoneuria/f4=g5 (4)], on anterior margin instead of long setae [see Discoglossata (1)] bears dense short spatulate setae (Kluge 2004: Fig.51:C).

(2) On fore wing double vein RSa+iRS in proximal part is closely approximated to Sc+RA. The same in Oligoneuria/f5=g6 [see Oligoneuria/f4=g5 (5)].

(3) Larval and imaginal paracercus is reduced. The same in Spaniophlebia [see Oligoneuria/f4=g5 (6)].

Variable characters of Lachlania. Larval abdominal terga can be simple or with unpaired projections.

Size. Fore wing length 8–15 mm.

Distribution. America: Neotropical and Nearctic Regions.

Nominal species in Lachlania/g1:

abnormis Hagen 1868 [Lachlania]