NEW YORK — An ancient wasp may have zipped among the dinosaurs, with a body like a Venus flytrap to seize and snatch its prey, scientists reported Wednesday.
The parasitic wasp’s abdomen boasts a set of flappy paddles lined with thin bristles, resembling “a small bear trap attached to the end of it,” said study co-author Lars Vilhelmsen from the Natural History Museum of Denmark.
Scientists uncovered over a dozen female wasps preserved in 99-million-year-old amber from the Kachin region in northern Myanmar. The wasp’s flaps and teeth-like hairs resemble the structure of the carnivorous Venus flytrap plant, which snaps shut to digest unsuspecting insects. But the design of the wasp’s getup made scientists think its trap was designed to cushion, not crush.
Instead, researchers suggested the flytrap-like structure was used to hold a wriggly insect still while the wasp laid an egg, depositing a baby wasp to feed on and drain its new host.
It’s a playbook adapted by many parasitic wasps, including modern-day cuckoo and bethylid wasps, to exploit insects. But no known wasp or any other insect does so with bizarre flaps quite like this one.
“I’ve seen a lot of strange insects, but this has to be one of the most peculiar-looking ones I’ve seen in a while,” said entomologist Lynn Kimsey from the University of California, Davis, who was not involved with the research.
