The Leptocorisini (Hemiptera: Heteroptera: Alydidae: Micrelytrinae) of Argentina, with new records, description of a new species, and a key to the species

Stenocoris (Stenocoris) schaeferi, a new species of Alydidae (Micrelytrinae: Leptocorisini) from Argentina, is described and illustrated. Lyrnessus geniculatus (Guerin-Meneville) and Stenocoris (Oryzocoris) furcifera (Westwood) are registered from Argentina for the first time. A key and a distributional map to the Argentinean Leptocorisini are also provided.Original Abstract: Stenocoris (Stenocoris) schaeferi, una nueva especie de Alydidae (Micrelytrinae: Leptocorisini) de Argentina, es descripta e ilustrada. Lyrnessus geniculatus (Guerin-Meneville) y Stenocoris (Oryzocoris) furcifera (Westwood) son citadas por primera vez para la Argentina. Ademas, se brinda una clave y un mapa de distribucion de las especies argentinas de Leptocorisini.