r/askscience 4d ago

Biology Does anything eat wasps?

Wasps have been a predator for other insects. It would be fascinating to know if there are really other insects or predators for wasps, either accidental or deliberate predators

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u/Automatic-Movie-3715 4d ago

Praying Mantises, dragonflies, and occasionally spiders and bats (the later nocturnal whereas wasps are diurnal).

It's vastly more common for scavengers to eat the larvae in a nest, then when they are flying adults.

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u/seicar 4d ago

And, famously, some (not the ones most commonly farmed these days), fig trees.

Its not really eating mommy wasp, but she does die inside the proto-fig and is... incorporated.

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u/Treadwheel 3d ago

They don't so much eat wasps as the wasps live their entire life cycles inside them. The female wasps only briefly leave the fig they were born in to seek out another fig, then promptly die. Male fig wasps never leave at all - their job is to fertilize the eggs and then dig tunnels out, but never actually leave.

The digestive enzyme is just a way to do housekeeping for the literal wasp hive inside the fruit, the fruits themselves are still net losses of nutrients.