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Who knows the name of this Dolichopodidae fly...?
Found 16-5-2009 in Zeist, Holland

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Dolichopus ungulatus (Linnaeus, 1758)
I guess it was already posted somewhere.

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Hello Igor,

It's the first time I uploaded this picture, infact it is my first Dolichopus ungulatus...
But I agree immediately that they all look alike, so before writing them in our species-system I prefer to put here on the forum.

I thank you for your reaction!!

Regards,
Hedy

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Dear Hedy,

Igor is right in stating that this is D. ungulatus. I gladly add the characters that led us to this identification. This should acutally be a common practise not only to support the identification proposed but also to help the photograph owner to learn to identify the specimens himself (step by step). In our region, D. ungulatus can be easily recognized by the multiple preapical anterodorsal bristles on the mid and hind femur together with the entirely black antenna.

Cheers,
Marc

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What Marc says about the information of discriminating characters is more than desirable, but illusorily in most cases. Compare the low number of experts to the gigantic, constantly increasing amount of eager non-professionals in the forum! It would be a full-time job to answer each question at length. If I get a substantiated species guess, I use the "Forum Search - ascending" function to get more details, and nearly always make an interesting find. To read the old threads is highly recommended to all beginners, as they are full of information! Dolichopus ungulatus is well explained here: http://www.dipter...ad_id=1026, why should that be repeated again and again?
Regards, Sundew

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Hello Igor, Marc and Sundew,

Thank you for your contribution to this topic.
I don't mind hearing an explanation many times, instead I start understanding slowly to see the differences, as in each foto or position, it seems to be a different fly...

Regards,
Hedy