The tiny and onobtrusive micromoth below is the diamondback Plutella xylostella. The UK population is bolstered by a migration from the continent every year, but this year the numbers are particularly high apparently.
And here below is another small moth, the double-striped pug Gymnoscelis rufifasciata. These are very common, but they fade to a mottled brown after a while; this nice, fresh specimen is still showing its handsome brick-red coloration
This one is not considered a micromoth – just a small and very unremarkable macromoth known as the straw dot.
Below is a specimen of the UK’s largest hover fly; Volucella zonaria is 2cm long and colonised Britain in the late 1930s, but is now very common.
This spider is Linyphia triagularis; it is a member of the money spider family, most of which are tiny and black or brown. This species is a lot larger, (although still a small spider by most standards), and quite attractively marked. They are about as common as anything can be, but they hang upside-sown from webs spun in bushes, so they are actually devilishly hard to photograph. This one for some reason has colonise the metal outside wall of the warehouse about 4 feet from the ground, so I was able to get a pretty good view of it.