ARTICLE
TITLE

A New Genus and Species of Urodidae (Lepidoptera: Urodoidea) from Argentina with the First Report of Asymmetric Male Genitalia in the Superfamily

SUMMARY

A new genus of Urodidae, Anomalomeuta gen. nov., is described from Argentina, with the type species, Anomalomeuta dondavisi sp. nov. The new genus is superficially similar to Spiladarcha Meyrick in having scattered small black spots comprised of raised scales along the forewing veins on the upper surface, but it lacks the 2 autapomorphies of the latter genus: a pair of spiniform setal zones on the ventroapical area of the tegumen, and a zone of longitudinal pleats on the ductus bursae. Anomalomeuta also differs from all known urodid genera by the asymmetric valvae in the male genitalia. This characteristic is reported for the first time from Urodoidea and is compared with examples of other Lepidoptera. Keys to all known urodid genera based on the external and male genital features are provided. Se describe un nuevo género de Urodidae, Anomalomeuta gen. nov. con la especie tipo, Anomalomeuta dondavisi sp. nov., de Argentina. El nuevo género es similar a Spiladarcha Meyrick en tener pequeños puntos negros dispersos que consisten de escamas elevadas sobre la nervadura de la superficie superior de las alas anteriores, pero carece de los 2 autapomorfías del género Spiladarcha, un par de zonas espiniformes de setas en la zona ventroapical del tegumento, y una zona de pliegues longitudinales en el ductus bursae. El género Anomalomeuta también difiere de todos los géneros urodidos conocidos por la valva asimétrica de los genitales masculinos. Esta característica se informó por primera vez de la superfamilia de Urodoidea, y se compara con ejemplos de otros lepidópteros. Se provee una clave para todos los géneros conocidos de urodidos, basado en las características genitales externas masculinas.

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