plant louse

On one of these leaves he placed a plant-louse, which was born under his own eyes, of a wingless mother.

The plant-louse or aphis is a sap-sucking insect which feeds and multiplies rapidly often seriously injuring crops.

Although the honeydew does not come from the little tubes on the back of the plant-louse, yet those tubes have their uses.

The Red Ant (Formica rufa) is singularly adroit in seizing the droplet left it by the plant-louse.