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Dear Ruud!

You should better send O. mantis to Tony because that will be the scarer species that has been confused with manicata before. In all regions in Germany O. mantis turned out to be rare if present at all wheras O. manicata is quite common. I have seen O. mantis from the Netherlands collected by M. von Tschirnhaus at the AK-Diptera meeting in the Netherlands.

Jens-Hermann