Plume moths

Definition

Moths belonging to the families Alucitidae (many-plume moths) and Pterophoridae (plume moths sensu stricto), characterized by wings that are deeply divided into narrow, feathery lobes held perpendicular to the body at rest, giving a distinctive T-shaped or plumed appearance. The wing division varies: Alucitidae typically have six plumose lobes per wing, while Pterophoridae usually have two or three. Adults are generally small, slender, and crepuscular or nocturnal; larvae often feed on flowers, buds, or stems of herbaceous plants.

Etymology

From the feathery, plume-like division of the wings resembling ornamental plumes.

Example

The twenty-plume moth Alucita hexadactyla (Alucitidae) is named for its wings, each split into six feathery lobes, while the brindled plume Amblyptilia pica (Pterophoridae) shows the more typical two-lobed wing structure of its family.

Synonyms

• plumed moths

Related Terms

• Alucitidae
• Pterophoridae
• microlepidoptera
• cleft wing
• feathery wing
• T-shaped posture

Usage Notes

In strict usage, 'plume moth' refers specifically to Pterophoridae, while 'many-plume moth' denotes Alucitidae; however, 'plume moths' is widely used as an inclusive common name for both families due to their convergent morphology. Specialists distinguish them by lobe number and wing-venation details. The families are not closely related phylogenetically—similar wing morphology represents convergent adaptation for maneuverability in cluttered vegetation.