Canadian Forest Service Publications
Two new species of aphids (Homoptera : Aphididae) on alder and birch in India. 1980. Quednau, F.W.; Chakrabarti, S. The Canadian Entomologist 112: 5-10.
Issued by: Laurentian Forestry Centre
Catalog ID: 14401
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Neobetulaphis chaetosiphon n. sp. from Alnus nepalensis D. Don. and Betula spp., and Betulaphis longicornis n. sp. from Betula utilis D. Don. and Betula sp. are described. The taxonomic position of the aphids with respect to closely related species is discussed.