Trichoptera
Your insect is probably a caddisfly
Fact file
Order: Trichoptera
Body length: 2 - 40mm
Species: World - 7000, UK - 192
Caddisflies usually live near ponds and lakes. Their larvae live in cases made from tiny pieces of plant stem, stones, sand grains and small snail shells. Some species make their cases from small twigs, and these cases are called log cabins.
