This common European Cercopid (Aphrophora salicis De Geer) was first discovered in the United States by Dr. Harold Morrison, who collected specimens in the Arnold Arboretum on various species of willow (Salix petiolaris, S. nigra, etc.) in July, 1921 and submitted them to Dr. Herbert Osborn, who identified them as above
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Metcalf et al. (1929) studied this question.
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