Small Ballast Caddisfly vs Trumpet-Net Caddis

Side-by-side species comparison

Attribute Small Ballast Caddisfly Trumpet-Net Caddis
Scientific Name Silo pallipes Polycentropus flavomaculatus
Order Trichoptera Trichoptera
Family Goeridae Polycentropodidae
Size 7-10 mm 10-15 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Omnivores
Regions Europe Europe
Conservation Least Concern Least Concern

Small Ballast Caddisfly

A small caddisfly that cements large pebbles to its mineral case for ballast in fast water. Found exclusively in clean calcareous streams.

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Did You Know?

Larvae select ballast stones of remarkably uniform size relative to their body mass.

Trumpet-Net Caddis

A caddisfly whose larvae spin trumpet-shaped silk nets to trap prey. It is common throughout European rivers and lakes.

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Did You Know?

Its trumpet-shaped capture net funnels prey into a waiting chamber where the larva ambushes them.