Northern Caddisflies

Limnephilidae

Northern Caddisflies are small insects that live near water. They build cozy little homes from twigs and pebbles, which they carry around as they swim and float.

Habitat: Wetlands

Appearance

The Northern Caddisflies has a moth-like body with four hairy wings that fold back tent-like over its abdomen. They are typically dull brown, grey, or black, providing camouflage against bark or vegetation. Their long, slender antennae extend forward, distinguishing them from true moths at rest.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderTrichopteraFamilyLimnephilidae

Northern Caddisflies

Interesting facts

Adult caddisflies can't eat solid food; they often only drink nectar or water, living off stored energy!

Some caddisfly larvae are carnivores, ambushing smaller aquatic insects with their strong jaws!

Some caddisfly larvae are used by jewelers to create unique, living artworks with precious gems!

They are excellent bioindicators; their presence helps scientists understand water quality in rivers and streams!

Special abilities

Northern Caddisflies larvae can build intricate protective cases from silk and environmental materials that helps them shelter from predators and currents.

Northern Caddisflies larvae have external gills that allow them to extract oxygen directly from the water, enabling them to live submerged for months.

Northern Caddisflies larvae produce strong silk to construct their protective homes or build capture nets, helping them secure food and shelter.

Measurements & details

Wingspan: 20-50 mm
Size: 10-25 mm
Lifespan: 200-365 days
Flight Speed: 8 km/h
Leg Count: 6

Diet & Feeding

Larvae eat algae, plants, or small insects; adults primarily consume liquids like nectar.

Age differences: Larvae consume diverse aquatic matter, while adults typically only drink nectar or water.

Primary Foods

Algae
Decaying plants
Small aquatic insects
Detritus
Nectar

Foraging Method

Foraging

Ecological connections

eaten by

Brown Trout

Salmo trutta

Trout are major predators of caddisfly larvae and pupae in streams.

eaten by

Northern Leopard Frog

Rana pipiens

Adult caddisflies are consumed by frogs and other amphibians near wetlands.

depends on

Red Alder

Alnus rubra

Larvae often use decaying leaves from streamside trees like alder for their cases.

Traits

Solitary

Solitary animals live alone for most of their lives, only interacting with others for mating or parental care.

Camouflaged

Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment.

Filter Feeder

Filter feeders obtain nutrients by straining suspended food particles and small organisms from water.

Herbivorous

This trait characterizes organisms whose diet consists entirely or primarily of plant material.

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.