Silverfish Strepsipteran vs Wasp Twisted-Wing Parasite

Side-by-side species comparison

Attribute Silverfish Strepsipteran Wasp Twisted-Wing Parasite
Scientific Name Mengenilla chobauti Xenos vesparum
Order Strepsiptera Strepsiptera
Family Mengenillidae Xenidae
Size 2.0-3.5 mm (males) 2-5 mm (males)
Habitat Heathland Woodlands
Diet Parasites Parasites
Regions Europe, Africa Europe
Conservation Not Evaluated Least Concern

Silverfish Strepsipteran

A primitive strepsipteran that parasitizes silverfish and firebrats. Unlike most strepsipterans, the adult female is free-living.

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Did You Know?

This is one of the most primitive strepsipterans, and the free-living adult female resembles a tiny larva.

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.