Saissetia coffeae:

they are insects of hemispherical shape measuring approximately 3.5 mm of length by 2 mm of height and 2 mm of width. The carapace is formed by excretions residues, from reddish to brown, and is waxy in adults. Females are usually smooth and shiny, with a habit of locating on coffee trees branches and leaves. The eggs are laid under the carapace itself. After hatching, the nymphs are fixed on the plants and suck the sap. They can have up to three annual generations.