Eggs of a species ofHemisarcoptesnearcocophagusMeyer (Acarina: Hemisarcoptidae), consisting of 1–18 per batch, are laid on the body of the host,Parlatoria blanchardiTargioni (Hemiptera:Coccidae), and take 10 days or more to hatch. Upon eclosion, larvae seek hosts, feed on their blood, and become adults after 2 nymphal stages. The entire life cycle, except when seeking hosts, is spent within the scale-cover ofP. blanchardi. At least a few engorgements involving a few individual scales seem necessary for a female to lay all her eggs. No mating has been observed.The mite population is density-dependent, attacking mostly mature female scales. The population, based upon numbers of eggs, is large in the cold season (Nov.–Feb.), decreases in the hottest period (Apr.–June), but recovers quickly during the rains (July–Aug.). Breeding continues throughout the year, producing some 15 generations per annum. Advantages of utilizing this organism for the biological control ofP. blanchardiand the method of its artificial re-distribution are described.