Find some plant near at hand that is infested by aphids in order to note from time to time the relation of ants to these little creatures. Some aphids on the petiole and leaves of the Virginia Creeper on our piazza once afforded me a convenient field for daily observation.
1. How does the ant approach the aphid and ask for honeydew?
2. Does she wait long if there is no response?
3. Does the ant step on the aphids as she runs about among them?
4. What are the colors of the aphids you have observed?
5. On what plants were they feeding?
6. What sort of mouth parts have the aphids?
7. What part of the plant is their food, and how do they get it?
8. Why does not Paris green applied to the leaves on which aphids are feeding kill them?
9. Have you seen the lady-bird larvæ or the ant-lions destroying aphids? Explain.