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Hi all,

As part of my PhD research I am conducting macroinvertebrate surveys in chalk rivers in the UK. While I'm pretty good with most families of invertebrates, diptera are a weak spot for me. It doesn't help that I only have a very basic guide where the major diptera families are described with images rather than proper keys.

Basically, I only really need to know the family, but I'd be interested to learn the species too. From my basic guide, it looks like this might be Muscidae, but I am by no means anywhere near confident.

Any help gladly received!

All the best