Ambrosia Beetle vs Bordered Great Diving Beetle

Side-by-side species comparison

Attribute Ambrosia Beetle Bordered Great Diving Beetle
Scientific Name Xyleborinus saxesenii Dytiscus circumflexus
Order Coleoptera Coleoptera
Family Curculionidae Dytiscidae
Size 1.5-2.5 mm 28-34 mm
Habitat Gardens Ponds & Lakes
Diet Fungus Feeders Omnivores
Regions Europe, North America, Asia Europe
Conservation Not Evaluated Near Threatened

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.

Bordered Great Diving Beetle

A large British diving beetle similar to D. marginalis but with expanded yellow margins. It prefers larger, more permanent water bodies.

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Did You Know?

Females have deeply grooved elytra while males have smooth ones, making the sexes easy to distinguish.