Boisduval scale
very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most important one. The Boisduval [...] throughout the tropics, and in greenhouses in more temperate climates. It is very polyphagous and can be a pest of orchids, palms, pineapples, bananas and many [...] circular or oval. The cast skins of the nymph form a light yellow spot near the centre of the scale called the exuvium. Adult females can produce up to 200 eggs