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Dear all,
The new theory about the warming sounds perfect, but as always there are exceptions to this. Look at this picture of a buubling fly (Muscidae) that I took in Germany, near to Muenster. It is from the 30th of october this year. The fly is sitting on a treetrunk, but it is not facing the sun! It was sitting on a part that was out of the sun, which was shining at the moment.
Greetings,
Gerard