Two new insect species have officially established themselves in Belgium, according to an announcement made Monday by the Flemish association Natuurpunt.
New Arrivals in the Belgian Ecosystem
The identified insects include the scolie hirsute, a type of solitary wasp from the Scoliidae family, and the Tremex magus, a species of symphytes (Symphyta) also known as sawflies.
Both insects are notable for their size, measuring between five and ten centimeters in length. Despite their imposing appearance, Natuurpunt has reassured the public that they are not as threatening as their names or looks might suggest.
Environmental Drivers of Migration
The presence of the scolie hirsute, which is primarily found in the Mediterranean, is attributed to rising temperatures in Belgium. Natuurpunt noted that climate change and the availability of suitable habitats played a key role in this shift.
The organization stated that this discovery “shows how much nature and climate are in movement.”
Similarly, the Tremex magus—native to Europe and Russia—was previously rare in the region. Its increasing presence may be linked to higher levels of drought, which results in more dead wood where the insect lives.
The Role of Citizen Science
These species were identified thanks to the efforts of citizens. Observations were reported and tracked through the Waarnemingen.be platform.
As climatic conditions continue to shift, other species may follow similar patterns, which could further alter the local insect population over time.
Frequently Asked Questions
Which insect species have settled in Belgium?
The scolie hirsute, a solitary wasp of the Scoliidae family, and the Tremex magus, a species of symphytes known as sawflies, are now well established.
What is causing these insects to move into the region?
Increasing temperatures are linked to the arrival of the scolie hirsute, while increased drought and a higher volume of dead wood are believed to be factors for the Tremex magus.
Are these large insects dangerous to humans?
Natuurpunt has stated that these insects are not as threatening as their appearance and names might lead people to believe.
Have you noticed any unusual insects in your local area recently?
