Mealybugs and scales
Hemiptera Mealybugs and scales What are mealybugs & scales? Mealybugs (family Pseudococcidae), soft scales (family Coccidae) and armoured scales (family Diaspididae) [...] females are wingless and immobile, and covered with a hard scale (armoured scales and soft scales) or with waxy threads (mealybugs). They suck the sap of [...] particularly sensitive to soft scales, as are oleanders and orchids. Armoured scales, unlike mealybugs and soft scales, produce no honeydew. They feed