Bug Identifier
Caddisfly (likely a microcaddisfly)
Community identification

Caddisfly (likely a microcaddisfly)

Order-level identification: Trichoptera; genus/species cannot be determined reliably from this image

Order & Family
Trichoptera; family uncertain, possibly Hydroptilidae
Size
Adults typically measure about 3–20 mm long; microcaddisflies are commonly 2–5 mm.
See this bug in the Encyclopedia

Natural Habitat

Adults occur near freshwater streams, rivers, ponds, and lakes, often resting on nearby walls or vegetation. Larvae develop underwater, commonly in cases or retreats.

Diet & Feeding

Adults generally consume little or no food, sometimes taking nectar or water. Larvae feed on algae, plant material, detritus, or small aquatic organisms depending on family.

Behavior Patterns

Adults are mostly nocturnal and attracted to lights, with hairy, folded wings and long antennae. Larvae undergo aquatic development and metamorphose into winged adults.

Risks & Benefits

They do not bite, sting, or damage household materials. Larvae are important freshwater decomposers and prey, and their presence can indicate relatively healthy water quality.