Associations
provided by BioImages, the virtual fieldguide, UK
In Great Britain and/or Ireland:
Animal / parasitoid
larva of Syrphoctonus tarsatorius is parasitoid of aphidivorous larva of Syrphus ribesii
Animal / parasitoid
larva of Syrphoctonus tarsatorius is parasitoid of aphidivorous larva of Episyrphus balteatus