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unidentified herbivory

unidentified herbivory
Mike's Road Ditch Prairie, Winneshiek County, Iowa, USA
February 10, 2019
fall 2018: exit holes on Michigan lilies, Lilium michiganense
I know, often generalist feeders but sometimes host specific insects.

Images of this individual: tag all
unidentified herbivory unidentified seed herbivory

Exit or entry?
They remind me of the feeding holes Pyrrhia aurantiago larvae make in false foxglove fruits.

I don't know.
I would guess exit by the size of the holes and by the amount of herbivory inside the pod, not much. Also if they were entry (which they could be) I'd think that I might have noticed a hole in the green pods some year as I do keep my eye on this plant species for later in the year collection of seeds. And if I saw a hole like this in a green pod I'd have to look closer.

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