Grain Pteromalid vs Ambrosia Beetle

Side-by-side species comparison

Attribute Grain Pteromalid Ambrosia Beetle
Scientific Name Anisopteromalus calandrae Xyleborinus saxesenii
Order Hymenoptera Coleoptera
Family Pteromalidae Curculionidae
Size 1.5-2.5 mm 1.5-2.5 mm
Habitat Gardens Gardens
Diet Parasitoids Fungus Feeders
Regions Worldwide Europe, North America, Asia
Conservation Not Evaluated Not Evaluated

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.

Ambrosia Beetle

A tiny wood-boring beetle that cultivates ambrosia fungi inside tree galleries as food. They live in cooperative family groups where daughters help maintain the fungus garden.

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Did You Know?

Daughter beetles delay dispersal to help their mother maintain and protect the fungus garden, a rare form of insect cooperation.