Dustywings

Definition

A family of minute lacewings (order Neuroptera) characterized by their powdery, wax-coated wings that obscure the underlying venation and give the insects a moth-like, dusty appearance. Adults and larvae are predators of small arthropods including mites, scale insects, and other tiny pests, making them significant natural enemies in orchards, forests, and agricultural systems. The waxy secretion, produced from specialized abdominal glands, serves as a defensive barrier against predators and may reduce desiccation.

Etymology

From the distinctive powdery or dusty appearance of the wings caused by waxy secretions.

Example

The dustywing Conwentzia psociformis, a common European species, is frequently encountered on orchard trees where its larvae prey on aphids and spider mites.

Synonyms

• Coniopterygidae

Related Terms

• Neuroptera
• Lacewings
• net-winged insects
• Biological control
• wax secretion
• genitalic characters

Usage Notes

The family name Coniopterygidae is preferred in formal taxonomic contexts; "dustywings" is the established common name in English-language entomological literature. Identification to genus is often possible in the field using wing venation patterns visible with a hand lens, but species-level determination typically requires microscopic examination of male genitalia. The waxy coating distinguishes them from other small Neuroptera such as brown lacewings (Hemerobiidae) and green lacewings (Chrysopidae).