There are some references on the study of morphology of the Homoptera in which Cicada has been taken as a basis for the generalised structure. In the sub-order Sternorhyncha paylla has been studied, but there are hardly any references directly dealing with the Aleurodidae or any particular species except the general morphological and anatomical features described by Quaintance and Baker (l913) in their "Classification of the Aleurodidae, Part I.". No one has studied the structure of any of the British species.