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Well thanks everyone for all your helps and comments. Its true, I made the name quaedvlieg english because of the english site. I looked it up at the dutch institute for social studies. I encountered the name with a judge, in 's Hertogenbosch if I am not mistaken. What supprised me was the apparent knowledge of a diversity in flies at that time. At first I became a disbeliever because of my underestimation of the skills and knowledge of some people in that time. But the explanation that is was related to a village makes it more trustworthy. Strange that people call their village after a fly; Hydrotaea irritans.
So thanks again and buzz ...
on with your lives.