P. 93-100Capraphis n. g. is described and placed in the tribe Macrosiphini Wilson 1910(1887)
(Hemiptera: Aphididae: Aphidinae), and its taxonomic position and differences with other American
related genera discussed. The apterous and alate viviparous females and the apterous oviparous
females and males of its type-species, Capraphis blackmani n. sp., are described and illustrated from
aphids collected on Mulinum spinosum (Cav.) Pers. in Mendoza province, Argentina.S