Aphis genistaeAphis genistae is an aphid of the family Aphididae.DistributionThis species can be found in most of Europe eastward to Ukraine and Turkey, and in the Nearctic realm.DescriptionAphis genistae can reach a length of. Apterae are black, coated with wax meal, while alatae have 4-8 secondary rhinaria.BiologyThese insects mainly feed on small branches and flowers of Genista anglica, Genista lydia and Genista tinctoria, but they have also been collected on Laburnum, Cytisus, Petteria, Spartium and Sophora species. These aphids sometimes have a mutualistic relationship with ants. They are holocyclic and oviparae. Sexual females mate with the alate males in September to produce overwintering eggs.