Abstract
Examination of plants in areas as far apart as Malham Tarn, Yorkshire; Gower peninsula, Glamorgan; Salcombe, Devon; and Kew Gardens, London have revealed populations of aphids not previously recorded in Britain or only occasionally reported. The various species, including one new subspecies (Fimbriaphis fimbriata pernettyae subsp. nov.) have been cultured in laboratory and several produced morphs which hitherto have not been described. Full biometric data are included, together with a key to alate and apterous viviparae of British species of Lipaphis Mordvilko and of Fimbriaphis Richards.
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