Microcaddisfly vs Giant Caddisfly

Side-by-side species comparison

Attribute Microcaddisfly Giant Caddisfly
Scientific Name Hydroptila sparsa Phryganea grandis
Order Trichoptera Trichoptera
Family Hydroptilidae Phryganeidae
Size 3-4 mm 25-30 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Omnivores Herbivores
Regions Europe, North America Europe, Asia
Conservation Least Concern Least Concern

Microcaddisfly

One of the smallest caddisflies, with adults only 3-4 mm long. Larvae build tiny purse-shaped cases from silk and algae on submerged rocks.

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Did You Know?

Microcaddisfly larvae build a new case for each instar, and their final pupal case is so small it is barely visible to the naked eye.

Giant Caddisfly

The largest European caddisfly with mottled brown-and-cream wings spanning up to 60 mm. Its larvae build portable cases from spirally arranged plant fragments.

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Did You Know?

Giant caddisfly larvae construct their cases in a beautiful spiral pattern from carefully cut pieces of leaves and stems.