About Pale-Footed Birch Sawfly
A tiny black sawfly whose larvae create distinctive blotch mines within birch leaves. Mined leaves develop brown, papery patches.
Did You Know?
Heavy infestations can cause over 80 percent of birch leaves to become mined, giving trees a scorched appearance by late summer.
How to Identify Pale-Footed Birch Sawfly
Pale-Footed Birch Sawfly (Profenusa thomsoni) belongs to the order Hymenoptera, family Tenthredinidae. Adults typically measure 3-5 mm.
Pale-Footed Birch Sawfly Habitat
Pale-Footed Birch Sawfly is found in woodlands habitats, particularly across Europe, introduced to North America. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Pale-Footed Birch Sawfly Diet and Feeding
Pale-Footed Birch Sawfly 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 Pale-Footed Birch Sawfly Found?
Pale-Footed Birch Sawfly can be found in Europe, introduced to North America, where it inhabits woodlands environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Pale-Footed Birch Sawfly can be found
Is Pale-Footed Birch Sawfly Dangerous?
Pale-Footed Birch Sawfly belongs to the order Hymenoptera, which includes many stinging insects. While not typically aggressive, it may sting if threatened or handled. Stings can cause pain and swelling, and in rare cases may trigger allergic reactions in sensitive individuals.
Pale-Footed Birch Sawfly Role in Nature
Pale-Footed Birch Sawfly 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
Frequently Asked Questions About Pale-Footed Birch Sawfly
What does Pale-Footed Birch Sawfly look like?
The Pale-Footed Birch Sawfly typically measures 3-5 mm.
Where is Pale-Footed Birch Sawfly found?
The Pale-Footed Birch Sawfly is found in Europe, introduced to North America and typically inhabits woodlands environments.
What does Pale-Footed Birch Sawfly eat?
The Pale-Footed Birch Sawfly feeds on plant material including leaves, stems, and other vegetation.
Is Pale-Footed Birch Sawfly dangerous to humans?
The Pale-Footed Birch Sawfly belongs to the order Hymenoptera, which includes stinging insects. While not typically aggressive, it may sting if threatened or handled.
What is an interesting fact about Pale-Footed Birch Sawfly?
Heavy infestations can cause over 80 percent of birch leaves to become mined, giving trees a scorched appearance by late summer.
Cite This Page
APA:
InsectDiscover. (2026). Pale-Footed Birch Sawfly (Profenusa thomsoni). Retrieved from https://insectdiscover.com/insect/pale-footed-birch-sawfly
MLA:
"Pale-Footed Birch Sawfly." InsectDiscover, https://insectdiscover.com/insect/pale-footed-birch-sawfly.