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Hi forum friends,
I am back with a wonderful syrphid I saw today. It took serious interest in a heavy exudate of sap on a trunk of an Ulmus tree, which behaviour, together with some googled pictures, makes me quite sure that I found a Sphiximorpha subsessilis. The species is said to be quite rare, so I would like to get a confirmation and, if possible, some more information. Is my fly a male because of the touching eyes?
Many thanks for any help, Sundew