Blowflies and their relatives are not the best-loved of insects.  The family includes species which breed in decaying flesh, so have immense importance in murder investigations.  They can also carry disease if allowed to make contact with food after walking on unsalubrious materials.  As is often the case in Highland, the family has been very poorly recorded.

The genus Calliphora is easy to recognise in the field with a little experience from the general build and the faintly metallic-blue abdomen with large patches of grey dust.  There are somewhat similar species in other families, but these do not show the blue colouration.  Cynomya is quite distinctive and can be identified in the field.

Steven Falk's Blowfly album.