Why is the lady-bird so beneficial to the gardener and husbandman?

Because all the species, both in the larva and the perfect state, feed exclusively on aphides, and never touch vegetable substances. The eggs are usually placed in a group of twenty or more upon a leaf, where aphides abound; and when the young are hatched, they find themselves in the midst of their prey. - J. Rennie.

This, as well as some species of Meloe, has been recommended as a remedy for the tooth-ache. - Blu~ menbach.