What an excellent argument! It is proven beyond doubt that the cochineal is no part of the ladybird, notwithstanding the assertions of the most eminent authority then living. We have no fault to find with particulars given, except that the little prominences on the cochineal, where the legs were hereafter expected to appear, were in reality the bases of the minute legs of that insect.
Returning now to the constructive argument, the author gives his conclusion that the cochineal must be derived from the aforesaid beetles, and yet is not any part of them. The simple explanation is that the cochineal, when mature, transforms into a beetle, and in doing so utterly loses the power of staining, and hence is no longer to be termed a cochineal. Now this loss of color at maturity is paralleled by other phenomena already recorded. In the case of the dye-coccus of the oak, the Kermes, so long as the little berries are full of little worms or animals, they are rich in the colored juice. After a while, when the little worms [the larvae of the Kermes, in reality] are called by the heat of the sun from their sacs [that is, the bodies of their mothers] they can be destroyed by the pressure of the hand, and forced into a mass which is appropriately termed vermillion. Otherwise, before the exclusion of the worms, the dried berries will equally preserve the desired color. It is just the same in the coccus polonicus [Margarodes polonicus of modern entomologists], which is said to cling to the roots of several herbs. These little bodies at a stated time turn into little winged insects, as is stated by several authors, including Martin Bernhard in his description of the Royal Garden of Varsovie. As soon as