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Published online by Cambridge University Press: 31 May 2012
Three new species of aphids are described from collections made on Mt. Sutep in northwest Thailand: Cinara khasyae new species; Greenidea (Trichosiphum) chiengmaiensis new species; and Macrosiphum (Sitobion) yongyooti new species. The status of Greenidea (Trichosiphum) siamensis Takahashi is changed from variety to species.