Overview Scale insects scales coccids are in Homoptera,Coccomorpha(蚧亚目). .More than 6000 species have been recorded worldwide. .650 species belong to 16 families in China,of which over 160 species are known as important agri and forestry pest insects•Scale insects = scales = coccids are in Homoptera, Coccomorpha (蚧亚目). •More than 6000 species have been recorded worldwide. •650 species belong to 16 families in China, of which over 160 species are known as important agri. and forestry pest insects Overview Overview