# Tube Maker Caddisflies (*Polycentropodidae*) Tube Maker Caddisflies are tiny insects that build special homes out of twigs and pebbles. They live in water and are great at hiding from fish and other animals. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Habitat:** Wetlands ![Tube Maker Caddisflies](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Polycentropus.jpg&width=800) Photo: Erin Hayes-Pontius, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Polycentropus.jpg) ## Appearance The Tube Maker Caddisflies are slender, moth-like insects with dull brown, grey, or black fuzzy wings covered in fine hairs. Their larvae, which live underwater, construct unique silken tubes often decorated with small pebbles or plant bits. They differ visually from true moths by their roof-like held wings and simpler antennae. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Trichoptera - **Family:** Polycentropodidae ## Interesting facts - Adult caddisflies often have fuzzy wings covered in hairs, earning them the cool nickname 'water moths'! - Caddisfly larvae can be like tiny water detectives, showing if a river or stream is clean and healthy! - Many caddisfly larvae live underwater for nearly a whole year before transforming into flying adults! - Some artists encourage caddisfly larvae to build their amazing cases with gold flakes and tiny jewels! ## Special abilities - **Underwater Silk Weaving:** Tube Maker Caddisflies can spin incredibly strong silk threads underwater because of specialized glands, helping them build unique retreats and capture nets. - **Architectural Tube Building:** Tube Maker Caddisflies can construct intricate tubular homes using silk and natural debris, protecting them from predators and currents. - **Net-Spinning Traps:** Tube Maker Caddisflies can weave funnel-shaped silken nets because of their silk glands, helping them filter tiny food particles from water currents. - **Oxygen Breathing Gills:** Tube Maker Caddisflies larvae have tiny external gills that help them extract oxygen directly from the water, allowing them to live underwater. ## Measurements & details - **Wingspan:** 10-30 mm - **Size:** 5-20 mm - **Lifespan:** 30-365 days - **Flight Speed:** 5 km/h - **Leg Count:** 6 ## Diet & Feeding Underwater larvae feast on tiny plants, algae, and small invertebrates, while adults often eat little. - **Age differences:** Larvae actively feed and hunt, while adults typically have reduced mouthparts and may not feed at all, or only on nectar. - **Primary Foods:** algae, detritus, diatoms, small aquatic invertebrates - **Foraging Method:** Filter feeding ## Ecological connections - **Eats:** [Brown Trout](https://www.snappit.app/explore/brown-trout) (*Salmo trutta*) — Adult and juvenile trout frequently eat caddisfly larvae. - **Eaten by:** Water Flea (*Daphnia pulex*) — Caddisfly larvae catch and consume small zooplankton like water fleas. - **Eats:** [White-throated Dipper](https://www.snappit.app/explore/white-throated-dipper) (*Cinclus cinclus*) — Dippers dive underwater to forage for caddisfly larvae and pupae. ## Traits - [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care. - [Camouflaged](https://www.snappit.app/explore/traits/camouflaged): Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment. - [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Decomposer](https://www.snappit.app/explore/traits/decomposer): Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem. - [Wetland](https://www.snappit.app/explore/traits/wetland): This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs. - [Miniature](https://www.snappit.app/explore/traits/miniature): Pertaining to species that are significantly smaller than typical or average for their kind. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. - [Pollinator](https://www.snappit.app/explore/traits/pollinator): Describes organisms that transfer pollen, enabling the fertilization and reproduction of plants. ## Collections - [Insects](https://www.snappit.app/explore/collections/insects) ## Safety **Danger:** 1/5 · Very low Always be gentle around insects and watch them from a distance. ## Frequently Asked Questions ### How to identify Tube Maker Caddisflies? Look for six legs, antennae, three body sections and the shape of the wings. Beetles have hardened front wings; flies have just one working pair. Tiny insects may need a close view before their group is clear. Insect Identifier: upload a photo and compare the visible details. ### What is Tube Maker Caddisflies's wingspan? 10-30 mm ### How big is Tube Maker Caddisflies? 5-20 mm ### How long does Tube Maker Caddisflies live? 30-365 days ### How fast can Tube Maker Caddisflies fly? 5 km/h ### What does Tube Maker Caddisflies eat? Underwater larvae feast on tiny plants, algae, and small invertebrates, while adults often eat little. ### Where is Tube Maker Caddisflies usually found? Wetlands ### How does Tube Maker Caddisflies hunt? Filter feeding ## More Insects - [Common Eastern Bumble Bee](https://www.snappit.app/explore/common-eastern-bumble-bee) (*Bombus impatiens*) - [Spotted Lanternfly](https://www.snappit.app/explore/spotted-lanternfly) (*Lycorma delicatula*) - [Brown-belted Bumble Bee](https://www.snappit.app/explore/brown-belted-bumble-bee) (*Bombus griseocollis*) - [Eastern Carpenter Bee](https://www.snappit.app/explore/eastern-carpenter-bee) (*Xylocopa virginica*) --- Source: [Tube Maker Caddisflies: Facts & Places to See — Snappit](https://www.snappit.app/explore/tube-maker-caddisflies)