
Thats the biggest wasp in the world, see more of him here:
http://www.hornissenschutz.de/manda.htm
Last summer I had a nest of wasps in my attic, my apartment was in the attic, the nest was right above my head when I sat at my desk, behind about 1/2 inch of plaster, I could hear this scraping noise, thought they were tunneling through, it made my skin crawl it was horrible. The pest control guy said the noise was because they were trying to cool the nest down, they all line up and beat their wings in unison to get a cooling draft going through the nest and the crackling noise was the nest flexing with the air pressure.
I hate wasps.





