Rat tailed maggots .......help

We have a low flush composting toilet with worms, the last few days we have some unwelcome swimmers coming up, how do we get rid of these, but not kill our worms??

Rat tailed maggots are the lava of hoverflies, a common one to find in sewage is (according to wiki) Eristalis tenax There's no need to kill them and your garden will love you if you don't.

If they stayed on the composting side, it would be ok, but they are swimming up into the toilet bowl!

These maggots are swimming up through the trap?
I wonder what is drawing them?
Is there light entering via the drain?
Could you add a tee and a vent to draw them up and out?

This site describes a trap for flies :
https://www.omick.net/composting_toilets/bucket_barrel_toilet.htm

It's based on drawing them toward the light.

Earth worms in the compost would eat the eggs wouldn't they?

And here i thought the topic must have been about politicians!!

LOL!
Never heard of rat tailed maggots!!  so i am happy to learn something new!

Thank you for advice, we had never heard of them before either, and poor hubby nearly died when he saw something swimming in the loop 🤣🤣🤣 Google identified them! There is no obvious light other than from toilet as we do leave the lid open usually, but it is quite a few metres away. Hubby has been fly spraying with pyrethrin meantime! We are about 3 years in and these are new! The worms are doing a pretty good job on their own! We have an aquatron type arrangement for seperating and 4 chambered collection unit!