Central European Acer- and Salicaceae-feeding aphids of the genus Stomaphis (Insecta: Aphidoidea: Lachnidae) -separate species or populations?
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In Europe, there are three aphid species of the genus Stomaphis Walker that feed on trees in the genus Acer and one that feeds on trees in the family Salicaceae. Although these species are considered morphologically distinct, their uncertain host specificity a... ...
