Hunting the Hunter (Part 1) was written about a year ago – you can read it here. That post was mostly about spider-hunting wasps of the family Pompilidae, and finished with the image below as a bit of a teaser to this second part.
The image shows several fly larvae (the arrow-headed segmented hairy things) and lots of eggs (the black ovoid things). They are the eggs and larvae of flies from the family Acroceridae. Adult flies of this family may be known as ‘bladder flies’, ‘small-headed flies’, ‘hump-back flies’, or ‘spider flies’. The image below indicates how a couple of those common names may have come about.