In their life-history the Homoptera are more specialized than the Heteroptera; the young insect often differs markedly from its After Weed, Riley and Howard, Insect Life, vol.
The Cicadidae are for the most part large insects with ample wings; they are distinguished from other Homoptera by the front thighs being thickened and toothed beneath.
In all the above mentioned families of Homoptera there are three segments in each foot.
In the Coccids the forma tion of a protective waxy secretion - present in many genera of Homoptera - reaches its most extreme development.
When at rest the wings of Homoptera slope roofwise across the back of the insect.