descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1908 English Publisher:Oxford University Press (OUP)Journal:Annals of the Entomological Society of America, volume 1, pages 251-261 (issn: 0013-8746, eissn: 1938-2901,

Authors: John J. Davis;

doi: 10.1093/aesa/1.4.251 , 10.1093/aesa/2.1.30

Studies on Aphididæ. I.*

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Abstract

What is supposed to be this species was first described by Asa Fitch in his â€œCatalogueof the Homoptera of New Yorkâ€ in 1851 as Aphis betulA¦colens . Monell described it from Missouri as Callipterus betulA¦colens , n. sp., and placed Aphis betulA¦colens of Fitch as doubtfully synonymous. Thomas hesitatingly placed this species and Calaphis betulella as Callipterus betulA¦ of Koch, but there is little doubt that all three are distinct species. Oestlund redescribed the winged viviparous female, from specimens collected in Minnesota, as C. betulA¦colens (Fitch), and gave C. betulA¦colens' of Monnell as synoynmous. It has been further reported in the literature by Miss Edith M. Patch from Maine, and by W. T. Clarke from California.

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