The Adelgidae is a small family of the Hemiptera closely related to the aphids, and often traditionally included in the Aphidoidea. The family is composed largely of species associated with pine or spruce, known respectively as pine aphids or spruce aphids. This family includes the former family Chermesidae, or "Chermidae", the name of which was declared invalid by the ICZN in 1955. There is still considerable debate as to the number of genera within the family, and the classification is still unstable and inconsistent among competing authors.[1]

Source: adapted by the editor from Wikipedia, the free encyclopedia; from the article "Adelgidae". Image Credit.

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