Adelges Abietis is a species of aphid that feeds on fir trees. Although it is commonly referred to as the spruce gall aphid or the woolly aphid, there are several other synonyms for this species. These include Fir Balsam Woolly Aphid, Fir Hare Lachemilla Aphid, and Eastern Balsam Woolly Aphid. These synonyms are often used interchangeably with Adelges Abietis in scientific and academic literature. It is important to note that despite the varying names, all of these synonyms refer to the same species of aphid that can cause serious damage to fir trees. Proper identification and treatment of Adelges Abietis is crucial to the health of forest ecosystems.