Cold-water Glacier Midge vs Christmas Island Blue Crab Fly

Side-by-side species comparison

Attribute Cold-water Glacier Midge Christmas Island Blue Crab Fly
Scientific Name Diamesa cinerella Paramyia nitens
Order Diptera Diptera
Family Chironomidae Phoridae
Size 3-4 mm body length 2-4 mm
Habitat Rivers & Streams Forests
Diet Detritivores Omnivores
Regions Europe, Alps, Scandinavia Christmas Island
Conservation Least Concern Not Evaluated

Cold-water Glacier Midge

A cold-adapted midge found in high-altitude streams fed by snowmelt. Its larvae are among the first colonizers of newly formed glacial streams.

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Did You Know?

Adults can emerge and fly at temperatures just above freezing.

Christmas Island Blue Crab Fly

A tiny fly found on Christmas Island in the Indian Ocean associated with red crab migrations. It lays eggs on injured or dead crabs.

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Did You Know?

During the annual red crab migration, these flies congregate in vast swarms along forest trails.