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Hi Nikita,

Thanks for reacting, but this I still don;t understand.
The image is Helina reverso (a muscid) and I would say, this is NOT a (more or less closed) sub apical cell (as IntKey calls it). Still, when I select "without subapical cell", then Muscidae is out of the row with possibilities in IntKey.
So that leaves only the conclusion that this Helina has a subapical cell and that the description in IntKey "(more or less closed)" is wrong.
Is that a correct conclusion?

Andr? Jas