Steven Falk hast added his 2017 blowfly (Calliphoridae) photos to Flickr. Includes the rare Angioneura acerba (new to Warwickshire) which looks nothing like a blowfly.
The blowfly family contains the familiar bluebottles (Calliphora), greenbottles (Lucilia) and cluster flies (Pollenia) together with various other genera, some of which are very different looking such as the rhinophorid-like Eggisops pecchiolii and Melanomyia nana, and the fleshfly-like Eurychaeta palpalis.