Wasp Twisted-Wing Parasite vs Sweat Bee Stylops

Side-by-side species comparison

Attribute Wasp Twisted-Wing Parasite Sweat Bee Stylops
Scientific Name Xenos vesparum Stylops nevinsoni
Order Strepsiptera Strepsiptera
Family Xenidae Stylopidae
Size 2-5 mm (males) 2.0-3.0 mm (males)
Habitat Woodlands Underground
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.

Sweat Bee Stylops

A strepsipteran endoparasite of Andrena bees in the British Isles. Parasitized bees emerge earlier than unparasitized individuals.

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Did You Know?

Infected bees emerge from hibernation earlier in spring, which helps the strepsipteran synchronize its mating season.