No interactions present.
are these caterpillars known to have irruption years ?
I ask as I recall hordes of them on kerbstones and other obstructions many years ago.
At the time I thought they were this species but don't seem to have taken pics,so now unsure.
Lat/Lng: 51.47508, -2.6054
OS grid ref: ST580752
In greenhouse, eating tomato plant leaves and fruit