Species of true bug
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Nasonovia ribisnigri is a species of aphid. Their primary hosts are currant plants, including blackcurrants ("Ribes nigrum") and gooseberries ("Ribes uva-crispa"), while the secondary hosts are a wider range of plants, including members of the Compositae ("Hieracium", "Lapsana", "Crepis", "Leontodon", "Lactuca" and "Cichorium"), Lamiales ("Veronica" and "Euphrasia") and Solanaceae ("Nicotiana" and "Petunia"). They are an important agricultural pest in lettuce and endive cultivation. 
Males grow to a length of , while viviparous females are long, but oviparous female only reach .
References.
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