Early instars transparent white, margin with several thin fragile wax filaments; dorsal surface with linear arrangement of opaque patches around median ridge. Later female instars develop a test like frosted glass, forming dense infestations, with individuals very close to each other or even overlapping. Colour of test white with a thick, opaque median ridge extending from anal plates to prothorax. Median ridge surrounded by irregular opaque white patches arranged roughly in a linear fashion. There are 3 prominent humps, one at each end of median ridge and one in the middle. Body of adult female brick red, completely occupying test before initiation of oviposition. Fresh eggs yellowish-brown, turning brick red just before hatching.