Acyrthosiphon kondoi, the blue alfalfa aphid or bluegreen aphid, is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from leguminous plants, particularly alfalfa (known as lucerne in most countries outside North America).

It was first described in 1938 by Orihei Shinji and Kondo from specimens collected in China (Manchoukuo).

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