Plume Moth

Scientific Name: Hellinsia osteodactylus (likely genus)

Order & Family: Order: Lepidoptera, Family: Pterophoridae

Size: Wingspan typically 15mm to 30mm

Plume Moth

Natural Habitat

Found in gardens, meadows, and wetlands where host plants are present.

Diet & Feeding

Adults feed on nectar from flowers; larvae feed on the leaves, stems, or flower heads of specific host plants (often Asteraceae).

Behavior Patterns

Night-flying (nocturnal) or crepuscular insects. They have a characteristic 'T' shape posture when resting, with narrow, feathery wings held perpendicular to the body.

Risks & Benefits

Generally harmless to humans; they act as minor pollinators. Some species' larvae may be considered minor garden pests if they feed on ornamental plants.

Identified on: 3/13/2026