Caddisfly Larva Case

Scientific Name: Trichoptera (Order)

Order & Family: Order: Trichoptera

Size: 2 mm to 30 mm

Caddisfly Larva Case

Natural Habitat

Freshwater ecosystems like streams, rivers, and ponds

Diet & Feeding

Larvae are typically detritivores, eating decaying plant matter or algae, though some are predatory.

Behavior Patterns

The larvae spin silk to build protective cases out of sand, pebbles, or plant matter; they eventually undergo metamorphosis into winged adults.

Risks & Benefits

Beneficial as a vital food source for fish and as bioindicators of good water quality; no risk to humans.

Identified on: 1/15/2026