What's That Bug? does not endorse extermination

Alderfly not Stonefly

Posted by May 14th, 2007 at 12:00 am

Categories

Neuropterans: Lacewings, Antlions, and Owlflies

UK fly
Hi,
Would you be kind enough to identify this UK fly? I find it common on freshwater lakes here in the UK whilst fishing. They are very tame and slow moving.
Lee.

Hi Lee,
We thought this was a Stonefly, but Eric Eaton set us straight. He wrote: “The stonefly is actually an alderfly, family Sialidae, order Megaloptera (or Neuroptera, depending on which authority you consult). ” Alderfliesflies have aquatic larvae.

(05/15/2007) UK stonefly ID question
I was looking at you page this morning and had a question about the picture of the possible UK stonefly. It looks alot like an alderfly to me. Just thought I would let you know what I thought it was.
Chad

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