Adult phoenicococcids are nearly circular, up to 1.5 millimetres long and a dark red colour. They are usually found embedded in a white waxy nest at the base of palm fronds. They have no legs and the antennae have a single segment.
There are three instars in the female and five in the male phoenicococcid. There are many overlapping generations with scales of all ages being present at any time of year. Development takes about sixty days in warm conditions but is much slower with cooler conditions.