louisedavis's picture

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Observed: 8th July 2013 By: louisedavis
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User comments

This ball of dead flies was attached to a hazel overhanging a river. its about the size of my hand, and there were many other similar sized balls attached to the same tree, but not on any other trees.

Species interactions

No interactions present.


leenestofvipers's picture

hmm interesting pics

They look a lot like a horsefly that bit me last week. I expect someone will be along who knows exactly what is going on here.

leenestofvipers's picture


Alan Thornhill's picture


It's not an insect I've ever heard about before yet someone's produced a factsheet on it.

jurassicphil's picture

amazed by this one

facinating - great Id alan - not seen this before - and the fact sheet explains everything.
this is the value of this system - you learn something every day.