Wasp Twisted-Wing Parasite vs European Stylops

Side-by-side species comparison

Attribute Wasp Twisted-Wing Parasite European Stylops
Scientific Name Xenos vesparum Stylops melittae
Order Strepsiptera Strepsiptera
Family Xenidae Stylopidae
Size 2-5 mm (males) 2.0-4.0 mm (males)
Habitat Woodlands Woodlands
Diet Parasites Parasites
Regions Europe Europe
Conservation Least Concern Not Evaluated

Wasp Twisted-Wing Parasite

An endoparasite of paper wasps where females spend their entire life inside the wasp host. Parasitized wasps are castrated and abandon their colony duties.

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Did You Know?

Female Xenos never leave their wasp host — they live, mate, and give birth to thousands of larvae while permanently embedded in the wasps abdomen.

European Stylops

A twisted-wing parasite of mining bees in the genus Andrena. Males are free-flying while females remain permanently embedded in the host bee.

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Did You Know?

The female never leaves her host bee and only her brood canal opening protrudes between the bee's abdominal segments.