Grain Pteromalid vs Saxon Wasp

Side-by-side species comparison

Attribute Grain Pteromalid Saxon Wasp
Scientific Name Anisopteromalus calandrae Dolichovespula saxonica
Order Hymenoptera Hymenoptera
Family Pteromalidae Vespidae
Size 1.5-2.5 mm 12-18 mm
Habitat Gardens Underground
Diet Parasitoids Predators
Regions Worldwide Western Europe, Central Europe, Northern Europe
Conservation Not Evaluated Least Concern

Grain Pteromalid

A tiny parasitoid of grain weevil and bruchid beetle larvae concealed inside stored cereal grains. It is widely used in biological control of stored-product pests.

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Did You Know?

Females can detect beetle larvae hidden inside wheat kernels by drumming on the grain surface with their antennae.

Saxon Wasp

A social wasp that builds distinctive grey football-shaped nests in trees and bushes. It is generally docile and its colonies die off naturally by late summer.

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Did You Know?

It was first confirmed breeding in Britain only in 1987, having expanded its range from mainland Europe.