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The Society for the study of flies (Diptera)

Affiliated to the British Entomological and Natural History Society (BENHS)

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#1 2018-06-06 15:23:03

Diddums
Registered user
Name: Array Array
Registered: 2016-07-20
Posts: 9

Pink fly

Is this some sort of dagger-fly? It is thoroughly pale pink.
Seen on my tripod on the sea-wall in Essex.


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#2 2018-06-06 16:53:14

Tony Irwin
DF Members
Name: Tony Irwin
From: Norwich
Registered: 2008-03-01
Posts: 748

Re: Pink fly

Freshly emerged female Chironomini (Chironomidae) - in several species, the haemoglobin that gives the larvae (bloodworms) their colour, is retained by the pupa and is passed on to the adult. It's not clear what advantage the air-breathing adult derives from so much haemoglobin - it may just be a case of being easiest to deal with it over a longer period, than trying to dump it all before eclosion. The red colour will fade, and the green, brown or black colour of the mature adult will soon develop.

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