TX Organic Research Center




Scientific name: Order Trichoptera, several families

Size: Less than 1"

Identification: Adults have long legs and four brownish wings covered with hairs. Antennae are nearly as long as the body. Larvae are aquatic and often in cases.

Biology and life cycle: Larvae live under water, some in cases, some just clinging to stones. Eggs are laid in ropes or masses in or near water, often under stones. Complete metamorphosis.

Habitat: Sunny areas near water. Adults fly by day.

Feeding habits: Most adults do not take in food. Larvae feed on small aquatic animals and bits of vegetation.

Economic importance: Important source of food for trout and other fish.

Natural control: None needed.

Organic control: None needed.

Insight: Some caddisfly larvae make a delicate silk net that they use to catch various microscopic organisms in the water.


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