Here are a few pictures of the latest little beasties to invade my insect collection, I put them in 50/50 alcohol water mix and then on a microscope slide with a cover glass on top, and then took the pictures.
This picture is of Liposcelis divinatorius captured in the Sheffield area of South Yorkshire UK
The antennae have 13 thin segments + 2 large basal ones. You can just about make out the biting mouthparts in the last picture through the head. The palps are 4 segmented. I saw one jump must be why they have large hind femorae. Size about 1 mm.