Primaspis: A New Genus of Diaspididae (Homoptera: Coccoidea) from the Southwestern United States

A new genus and species of armored scale close to Rugaspidiotus is described and illustrated. In Primaspis gen. nov., from New Mexico, the adult females are separable from Rugaspidiotus in having gland spines on the pygidial margin, well defined median lobes, and a bilobed second lobe. In the first instars, the antennae are 6 segmented, there is no row of ventral submedian abdominal setae, and no elongate setae on the tarsi.