Abstract The monotypic Neotropical eccritotarsine genus Paraneella Carvalho (Heteroptera: Miridae) and its only included species, Paraneella amazonicaCarvalho 1954, are diagnosed and redescribed, and new characters for their recognition are provided, illustrated, and photographed. Paraneella amazonica, previously known from the type locality in Brazil, is reported for the first time from Ecuador. Because the holotype deposited at the National Museum in Rio de Janeiro was destroyed by fire, a neotype is designated. Carvalho placed Paraneella in the “Neella-Neoneella genus complex” based on its similarity with Neella Reuter. The only existing key to identify these genera had in its first couplet characters referring to males that are unknown for Paraneella amazonica. A new key based on a new set of characters, which are photographed and illustrated, is provided.

ABSTRACT The genus Adoxoplatys is distributed from Panama to Argentina. The eight included species are known from a few specimens. In this contribution, a new species from Misiones Province, Argentina, Adoxoplatys singularissp. nov., is described and illustrated; and a key to identify the species of the genus is provided.

A new species, Ischnodemus brusai, from Ucayali, Peru is described and illustrated, including characters of the male genitalia. Adult males and females, and immature specimens of I. subflavus Slater and Wilcox 1969 were collected on Sporobolus rigens (Trinius) Desvaux (Poaceae) in the province of Chubut, Argentina. This is the first record of the male for this species. Descriptions and illustrations of a male individual, as well as male and female genitalia and immature stages II to V are provided. Affinities with other Neotropical species of Ischnodemus are discussed.

Se describe e ilustra una especie nueva, Ischnodemus brusai de Uyacali, Perú, incluyendo caracteres de los genitales masculinos. Se recolectaron adultos machos, hembras y estadios inmaduros de I. subflavus Slater and Wilcox 1969 sobre Sporobolus rigens (Trinius) Desvaux (Poaceae) en la provincia de Chubut, Argentina. Éste es el primer registro de un macho para esta especie. Se proveen descripciones e ilustraciones del macho, genitales masculinos y femeninos, y los estadios II a IV. Se discuten las afinidades con otras especies neotropicales del género.

Terenocoris nitidus Slater is recorded for the first time from Argentina and Bolivia. The first record of Patagonia is the southernmost of the tribe Antillocorini.

Se cita Terenocoris nitidus Slater por primera vez para la Argentina y Bolivia. El registro de Patagonia es el más austral para un miembro de la tribu Antillocorini.