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Aucune description en français n’est encore disponible.
The witch-hazel cone gall aphid (Hormaphis hamamelidis) is a minuscule insect, a member of the aphid superfamily, whose presence on a witch-hazel (Hamamelis virginiana) plant is easily recognizable by a conical gall structure. The gall is green at first, then turns bright red. This gall, rich in nutrients, provides both food and shelter for the female aphid.
Hormaphis es un género de pulgones formadores de agallas de la familia Aphididae. Hay por lo menos tres especies descritas de Hormaphis; se encuentran principalmente en el este de Estados Unidos.
Distribution
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Countries in the Picchu catalog
United States of America · 1
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