Pepper Maggots?

Hi All
Are these pepper maggots in my greenhouse chillis.  Searching seems to say that they are a pest only in the US.  They don't really look like the photos I found of them either, so maybe something else Corn Borer?

Thanks.

This old forum thread might provide some clues:

https://chat.allotment-garden.org/index.php?topic=116272.msg1344956#msg1344956

They are about 5-7 mm

I did a little more research they look kind of  like   attached european corn borer pic. I  don't think pepper maggots as they are too  dark colour.

I'd looked at that old thread before posting , but  I  did not find any evidence of pepper maggots  actually in UK despite the suggestion.

I think I'll go with ECB ( apparently also a big pepper pest)  unless anyone has  any better  suggestions. I have some corn too , but not seeing any issues there.