Aphis Species Infesting Ribes (Homoptera: Aphidae)1

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Abstract
The following report deals with seven species of the aphid genus Aphis which feed upon currants and gooseberries. One species appears to be undescribed and is here described as new. The writers3 have found some difficulty in constructing a key which would consistently and easily separate the various species to their proper positions. Several of the species are very closely related and some question might exist as to whether all of the forms justify specific rank.

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