Insecta (damage types to leaves) 51 27
If I read this correctly, there are 51 documented leaf-damage types in
the late Maastrichtian, of which 27% are gone after the K-Pg boundary.
A leaf-damage
type is not necessarily restricted to a single species (it could be
characteristic of a genus or other higher taxon), so the actual count in
terms of species could be considerably higher.
And that's completely ignoring the insect species that didn't damage
leaves!
Nick Pharris
Department of Linguistics
University of Michigan