This all started last year when a group of us found several Poplar Trees at Ketton Quarry with loads of holes around the base of the tree trunk and exposed roots. These holes were made by Hornet Moths Sesia apiformis as we watched a newly emerged moth dry its wings on the trunk. The following weekend on 2 consecutive mornings 26/27- June 2010 we counted 9 Hornet Moths on each morning.
At the beginning of March 2011 I noticed holes low down in several Willow Trees at PRW. The first thing that struck me was the similarity of these holes and the holes we found last year at Ketton Quarry, the only difference being the species of tree.
I started to investigate these holes in the Willow Trees at PRW a little more and it all started to point towards Lunar Hornet Moths. This was all too good to be true so I thought I would proceed with caution and I asked Dr Frank Clark to have a look at the holes just in case it was a species of Beetle that had made the holes. The answer came back as definitely not!!
The next step was to get someone else to look at these pencil sized holes that has more experience with this kind of thing. The only person that sprang to mind was Keith Tailby I was confident that Keith would have seen these holes before. A day was arranged to meet Keith on site and after a good look at several places around the reserve Keith said “I would be disappointed if they weren’t Lunar Hornet Moths”. That was good enough for me.
I removed some of the lower branches to allow more sunlight in on the base of the Willow Trees and cleared the vegetation away from the exposed roots a few weeks ago. After several weeks of going and checking the holes also liaising with Keith I was finally rewarded with a fresh Exuvia Casing on 17-07-2011. I know it isn’t much but I now know they are definitely at PRW now. On 24-07-2011 Keith Tailby, Tim Goodlife and Graham Finch found another 5 Exuvia.
The next step is to actually find a living moth that has just emerged, sitting on the trunk drying its wings out.





































