A New Species of Moth Lacewing from the Mesoamerican Genus Adamsiana Penny 1996 (Neuroptera: Ithonidae).

The poorly studied Mesoamerican genus Adamsiana Penny, 1996 (Neuroptera: Ithonidae) was considered monotypic for more than 20 years, containing only Adamsiana curoei Penny. However, a second species was recently discovered in the southern region of Guatemala and is described here as Adamsiana alux Ardila-Camacho, Castillo-Argaez & Martinez, sp. nov. A key to the Adamsiana species and a list of the extant New World Ithonidae species are provided. This work emphasizes the necessity for more studies about not only Ithonidae but also all entomological fauna in the Neotropics.