Northern Bushtail Caddisfly vs March Fly

Side-by-side species comparison

Attribute Northern Bushtail Caddisfly March Fly
Scientific Name Sericostoma schneideri Bibio marci
Order Trichoptera Diptera
Family Sericostomatidae Bibionidae
Size 11-15 mm 10-13 mm
Habitat Mountains Underground
Diet Detritivores Detritivores
Regions Europe Europe
Conservation Least Concern Least Concern

Northern Bushtail Caddisfly

A cold-water caddisfly of northern European mountain streams. Larvae build sturdy curved cases from fine gravel and process leaf litter.

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Did You Know?

Larvae condition leaf material by allowing fungal colonization before consuming it, much like composting.

March Fly

A common black fly that swarms in large numbers around Saint Marks Day in April.

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Did You Know?

Mating pairs fly joined together with the smaller male dangling beneath the female.