1. A variety of adelgid which feeds on red, black, Engelmann, blue, and white spruce, or alternatively on white and western white pines (Pineus pinifoliae)
   "The pine leaf aphid alternates between spruce and pine hosts";
   - Pineus pinifoliae

Derived forms: pine leaf aphids

Type of: adelgid

Part of: genus Pineus, Pineus