Just bought a new house and the garden is filled with some kind of flea-like insect. You can't notice them normally but put anything white on the grass and they jump on it instantly.
And some photos:
They're maybe 1mm long and they jump like fleas. The previous owners apparently had two cats, and there are definitely cats still roaming. But they're not in the house at all and they don't bite us.
Anyone have any ideas or know a better place to ask?