| 11. | Adults feed on nectar; larvae feed on aphids and scale insects.
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| 12. | The cochineal is a scale insect found on prickly pear cacti.
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| 13. | A . Mealybug is a common name for a family of scale insects.
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| 14. | It is difficult to tell when scale insects are really dead.
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| 15. | His work provided the basis for classification of butterflies, moths, and scale insects.
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| 16. | He suspected that natural predators of the scale insects held them in check.
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| 17. | In cultivation various scale insects attack the leaves of the genus.
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| 18. | It preys on scale insects living on " Euonymus " species.
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| 19. | Their appearance originally led scientists to describe them as mollusks and scale insects.
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| 20. | This species is host to the scale insect " Lecanodiaspis tarsalis"
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