The genus-level classification of New World Erythroneurini is revised based on results of a phylogenetic
analysis of 100 morphological characters. The 704 known species are placed into 18
genera. Erasmoneura Young and Eratoneura Young, previously treated as subgenera of Erythroneura
Fitch, and Erythridula Young, most recently treated as a subgenus of Arboridia Zachvatkin,
are elevated to generic status. Three species previously included in Erasmoneura are placed in a
new genus, Rossmoneura (type species, Erythroneura tecta McAtee). The concept of Erythroneura
is thereby narrowed to include only those species previously included in the nominotypical
subgenus. New World species previously included in Zygina Fieber are not closely related to the
European type species of that genus and are therefore placed in new genera. Neozygina, n. gen.,
based on type species Erythroneura ceonothana Beamer, includes all species previously included
in the ???ceonothana group???, and Zyginama, n. gen., based on type species Erythroneura ritana
Beamer, includes most species previously included in the ???ritana group??? of New World Zygina.
Five additional new genera are described to include other previously described North American
Erythroneurini: Hepzygina, n. gen., based on type species Erythroneura milleri Beamer and also
including E. aprica McAtee; Mexigina, n. gen., based on type species Erythroneura oculata McAtee;
Nelionidia, n. gen., based on type species N. pueblensis, n. sp., three additional new species,
and Erythroneura amicis Ross; Neoimbecilla, n. gen., based on type species Erythroneura kiperi
Beamer and one new species; and Illinigina, n. gen., based on type species Erythroneura illinoiensis
Gillette. Five new genera, based on previously undescribed species, are also recognized:
Aztegina, n. gen, based on A. punctinota, n. sp., from Mexico; Amazygina, n. gen., based on type
species A. decaspina, n. sp., and three additional new species from Ecuador; Hamagina, n. gen.,
based on type species H. spinigera, n. sp., and two additional new species from Peru and Ecuador;
Napogina, n. gen., based on type species N. recta, n. sp., and one additional new species from
Ecuador; Perugina, n. gen., based on type species P. denticula, n. sp., from Peru; and Spinigina, n.
gen., based on type species S. hirsuta, n. sp., and an additional new species from Peru. Phylogenetic
analysis suggests that the New World Erythroneurini consist of three lineages resulting from
separate invasions from the Old World.published or submitted for publicationis peer reviewe