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Published online by Cambridge University Press: 31 May 2012
I am obliged to Dr. A. C. Baker for the information that Heteroneura, recently described by the writer in Canadian Entomologist, (1919, page 228) as a new genus to include Aphis setariæ Thos., is preoccupied. I am, therefore, proposing a new name, namely, Hysteroneura, as a substitute for Heteroneura.