Wingless adults are only 1.5 mm long. Small, black, sturdy cornicles are found on the end of the body.
Nymphs have a dull, brick-red bodies with relatively long legs and antennae.
The cornicles are short and dark. Older nymphs have proportionally longer cornicles. Those destined to be winged adults have wing buds in the later instars. C, Older nymph. The chrysanthemum aphid is of east Asian origin, but is now found where chrysanthemums are grown outdoors as well as in greenhouses.