Evergreen Bagworm Moth vs Brine Fly

Side-by-side species comparison

Attribute Evergreen Bagworm Moth Brine Fly
Scientific Name Thyridopteryx ephemeraeformis Ephydra hians
Order Lepidoptera Diptera
Family Psychidae Ephydridae
Size Males 25 mm wingspan; females wingless and legless 4-7 mm
Habitat Gardens Ponds & Lakes
Diet Herbivores Herbivores
Regions Eastern North America North America
Conservation Least Concern Least Concern

Evergreen Bagworm Moth

A North American bagworm whose larvae construct spindle-shaped bags covered in bits of leaves and twigs. Heavy infestations can completely defoliate and kill ornamental evergreen trees.

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Did You Know?

The adult female is so reduced that she is essentially a bag of eggs with no wings, legs, eyes, or functional mouthparts.

Brine Fly

A fly that thrives in the extremely alkaline waters of Mono Lake.

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Did You Know?

It carries an air bubble underwater and was a staple food of the Kutzadikaa Paiute people.