πŸͺ¨ Stoneflies

Needle Stonefly

Leuctra fusca

About Needle Stonefly

A small slender stonefly that rolls its wings tightly around its body at rest, giving it a needle-like appearance. Common in small streams across Europe.

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Did You Know?

Needle stoneflies are among the most pollution-sensitive aquatic insects and disappear quickly from streams affected by acid rain.

How to Identify Needle Stonefly

Needle Stonefly (Leuctra fusca) belongs to the order Plecoptera, family Leuctridae. Adults typically measure 6-10 mm.

Needle Stonefly Habitat

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

Needle Stonefly Diet and Feeding

Needle Stonefly 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 Needle Stonefly Found?

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

Distribution Map

Where Needle Stonefly can be found

Is Needle Stonefly Dangerous?

Needle Stonefly 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.

Needle Stonefly Role in Nature

Needle Stonefly 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
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak activity Moderate Low / dormant

Frequently Asked Questions About Needle Stonefly

What does Needle Stonefly look like?

The Needle Stonefly typically measures 6-10 mm.

Where is Needle Stonefly found?

The Needle Stonefly is found in Europe, Asia and typically inhabits rivers & streams environments.

What does Needle Stonefly eat?

The Needle Stonefly feeds on plant material including leaves, stems, and other vegetation.

Is Needle Stonefly dangerous to humans?

The Needle Stonefly is generally harmless to humans. It does not bite or sting and poses no significant health risk.

What is an interesting fact about Needle Stonefly?

Needle stoneflies are among the most pollution-sensitive aquatic insects and disappear quickly from streams affected by acid rain.

Cite This Page

APA:
InsectDiscover. (2026). Needle Stonefly (Leuctra fusca). Retrieved from https://insectdiscover.com/insect/needle-stonefly

MLA:
"Needle Stonefly." InsectDiscover, https://insectdiscover.com/insect/needle-stonefly.