Description of a new species of Ischnodemus from Peru, and the male and immature stages of I. subflavus (Hemiptera: Heteroptera: Lygaeoidea: Blissidae)

Abstract

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. subfl avus Slater and Wilcox 1969 were collected on Sporobolus rigens (Trinius) Desvaux (Poaceae) in the province of Chubut, Argentina. This is the fi rst 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. Affi nities 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. subfl avus 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 afi nidades con otras especies neotropicales del género.