Definition:
Eriococcidae is a family of scale insects commonly known as felt scales or eriococcid scales. These insects belong to the order Hemiptera, suborder Sternorrhyncha, and superfamily Coccoidea.
Overview:
Eriococcidae comprises a diverse group of sap-feeding insects that are often found on the stems, leaves, and branches of various woody and herbaceous plants. Members of this family are distributed worldwide, with many species causing economic damage to agricultural and ornamental plants through their feeding activities, which can weaken host plants and excrete honeydew that promotes the growth of sooty mold.
Etymology/Origin:
The name Eriococcidae is derived from the Greek words "erion," meaning "wool," and "kokkos," meaning "berry" or "grain," referring to their woolly or felt-like appearance and rounded body form. The suffix "-idae" denotes a family-level taxonomic rank in biological classification.
Characteristics:
Eriococcidae species are typically small, ranging from 1 to 5 mm in length. They are often covered with a waxy or felt-like secretion that provides protection. Adult females are usually immobile and lack wings and distinct segmentation, while males, when present, are typically smaller, winged, and short-lived. Reproduction can be sexual or parthenogenetic depending on the species. The life cycle generally includes egg, nymphal (instar), and adult stages, with nymphs progressing through several molts.
Females produce an ovisac, often made of waxy filaments, in which eggs are laid. Some species induce plant galls, while others live exposed on plant surfaces. They feed on plant phloem sap using piercing-sucking mouthparts.
Related Topics:
- Hemiptera
- Sternorrhyncha
- Coccoidea
- Scale insects
- Plant pests
- Biological pest control
- Mealybugs (Pseudococcidae) – a related but distinct family
- Armored scales (Diaspididae)
Eriococcidae includes economically significant genera such as Eriococcus, Asterolecanium, and Kermes, the latter historically associated with the production of kermes dye.