Sand-Case Caddisfly vs Microcaddisfly

Side-by-side species comparison

Attribute Sand-Case Caddisfly Microcaddisfly
Scientific Name Sericostoma personatum Hydroptila sparsa
Order Trichoptera Trichoptera
Family Sericostomatidae Hydroptilidae
Size 10-14 mm 3-4 mm
Habitat Rivers & Streams Rivers & Streams
Diet Herbivores Omnivores
Regions Europe Europe, North America
Conservation Least Concern Least Concern

Sand-Case Caddisfly

A caddisfly whose larvae build smooth, curved cases entirely from fine sand grains cemented with silk. Adults are dark with hairy wings.

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Did You Know?

The curved sand-grain cases built by these larvae are so precisely constructed they resemble tiny miniature architectural works.

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.