Caddisfly

Adults are commonly found near streams, ponds, and lakes; they may be attracted to outdoor lights and enter buildings.

Adults often feed little or not at all; larvae are mostly aquatic and eat algae, plant material, or small invertebrates.

The pictured insect’s narrow, tent-like wings and long antennae fit a caddisfly. Larvae develop in water, often in protective cases, before emerging as winged adults.

Harmless to people and homes; aquatic larvae help process organic matter and serve as food for fish and other wildlife.