The adult female X. annandalei is an elongated oval shape with an abdomen that tapers abruptly at the back.
[2] This species is found in the Northern Territory of Australia, Queensland, Papua New Guinea, Hong Kong, India (Orissa), Malaysia and Vietnam.
The excess sugar in the sap is excreted as honeydew which is removed by the ants which may stimulate its production by palpating the mealybug's abdomen.
[1] When the young ant queens leave the nest on their nuptial flight, they carry female mealybugs in their jaws ready for the foundation of new colonies.
Fossil specimens of Acropyga have been recovered from amber deposits in the Dominican Republic and several of these are carrying Electromyrmococcus, an extinct genus of mealybug.