Caddisfly (likely a micro-caddisfly)

Adults occur near freshwater streams, ponds, and lakes, often resting on windows or other surfaces near lights. Larvae live underwater, frequently building tiny protective cases.

Adults often consume little or nothing, relying on larval reserves; some take nectar or other liquids. Larvae feed on algae, plant matter, or small aquatic organisms, depending on species.

Adults are mostly nocturnal and attracted to lights. Larvae undergo aquatic metamorphosis, then emerge as winged adults that mate and lay eggs near water.

Harmless to people and homes; they do not bite or sting. Larvae are important aquatic consumers and prey, and their presence can indicate freshwater habitat.