🏠 Caddisflies

Great Red Sedge

Phryganea striata

About Great Red Sedge

A large cinnamon-colored caddisfly with distinctive striped wings, well known to European anglers. It hatches in early summer on lakes and slow rivers.

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Did You Know?

This caddisfly inspired one of the oldest known artificial fishing flies, the "Great Red Sedge," used since at least the fifteenth century.

How to Identify Great Red Sedge

Great Red Sedge (Phryganea striata) belongs to the order Trichoptera, family Phryganeidae. Adults typically measure 20-25 mm.

Great Red Sedge Habitat

Great Red Sedge is found in rivers & streams habitats, particularly across Europe. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.

Great Red Sedge Diet and Feeding

Great Red Sedge is a herbivore, feeding on plant material including leaves, stems, flowers, and other vegetation. Herbivorous insects play a significant role in ecosystems by influencing plant growth and serving as a food source for predators.

Where Is Great Red Sedge Found?

Great Red Sedge can be found in Europe, where it inhabits rivers & streams environments. Its distribution is influenced by climate, food availability, and habitat suitability.

Distribution Map

Where Great Red Sedge can be found

Is Great Red Sedge Dangerous?

Great Red Sedge is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.

Great Red Sedge Role in Nature

Great Red Sedge is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.

Seasonal Activity

Jan
Feb
Mar
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May
Jun
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Aug
Sep
Oct
Nov
Dec
Peak activity Moderate Low / dormant

Frequently Asked Questions About Great Red Sedge

What does Great Red Sedge look like?

The Great Red Sedge typically measures 20-25 mm.

Where is Great Red Sedge found?

The Great Red Sedge is found in Europe and typically inhabits rivers & streams environments.

What does Great Red Sedge eat?

The Great Red Sedge feeds on plant material including leaves, stems, and other vegetation.

Is Great Red Sedge dangerous to humans?

The Great Red Sedge is generally harmless to humans. It does not bite or sting and poses no significant health risk.

What is an interesting fact about Great Red Sedge?

This caddisfly inspired one of the oldest known artificial fishing flies, the "Great Red Sedge," used since at least the fifteenth century.

Cite This Page

APA:
InsectDiscover. (2026). Great Red Sedge (Phryganea striata). Retrieved from https://insectdiscover.com/insect/great-red-sedge

MLA:
"Great Red Sedge." InsectDiscover, https://insectdiscover.com/insect/great-red-sedge.