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109 Views 2 Replies Last post: Jul 7, 2018 3:58 PM by Douglas RSS
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Jul 7, 2018 8:55 AM

Pond flies - can you identify



I have a couple of small ponds in the garden.  For the last few weeks one has been very popular with dozens of small flies, see attached photographs.


They measure 5-7mm in length, a coppery/bronze irridescent sheen to the main body and the wing tips have a silver/white marking.


They can walk on the water surface and also spend time sitting on leaves and defending their turf - or is it a mating ritual?


The other inhabitants of the pond - this is an old Belfast sink - are newts and some of this year's froglets.  All seem happy together.



Can anyone identify these flies please?


Thank you

  • Currently Being Moderated
    Jul 7, 2018 9:48 AM (in response to Douglas)
    Re: Pond flies - can you identify

    These are Poecilobothrus nobilitatus flies Douglas, appearing as either bronze or green according to how the light is reflected from them.  Those with the white wingtips are the males who perform ritual wing flicking dances in front of the females as invitations to mate.  More details on this link



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