Do weevils eat lettuces?

[ameno]

Adult weevils will eat notches from the edges of many different leaves, but they never produce holes in the middle.

I imagine it will be small slugs. Just because you can't see any, doesn't mean they're not there. Slugs are very good at hiding, especially the small ones.

[Eoghan]

I am puzzled by the appearance of holes in my lettuces on one side of the polytunnel but not on the other. I found a "vine weevil" on a lettuce I harvested but no caterpillars or slugs?

Can you get an idea of the pest from the holes? These were sporadic and in the leaf, not from the edge in??