Thanks PhilGood detail in the 1st Chris,
Works for mean't really help with ID but the colour looks like a sh*t fly, not sure on the Latin name
The thorax is as you see it, possibly slightly more red to the naked eye, and yes the abdomen was blackThe fly could be a fruit fly.
Was the abdomen a mix of yellow and black?
Thanks for you honesty Alf,Nice fly shot but the spider is not as sharp as i would like but not an easy shot