Mormon Metalmark vs Midge Gall Fly

Side-by-side species comparison

Attribute Mormon Metalmark Midge Gall Fly
Scientific Name Apodemia mormo Asphondylia sarothamni
Order Lepidoptera Diptera
Family Riodinidae Cecidomyiidae
Size 22-30 mm wingspan 2-4 mm
Habitat Heathland Heathland
Diet Nectar Feeders Fungus Feeders
Regions Western North America from Canada to Mexico Europe
Conservation Least Concern (species); some subspecies criticall Least Concern

Mormon Metalmark

A small butterfly with dark brown wings covered in white spots arranged in irregular bands. Several of its subspecies are critically endangered.

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Did You Know?

The Lange's metalmark subspecies, restricted to a single sand dune in California, is one of the rarest butterflies in the world.

Midge Gall Fly

A gall midge that induces pod-like galls on broom shrubs. Its larvae develop inside swollen seed pods alongside symbiotic fungi.

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Did You Know?

It farms a symbiotic fungus inside the gall that provides food for its developing larva.