The jumping spiders are among 200 rare invertebrate species living on the Swanscombe peninsula in Kent, officially protected for nature. It also harbours marsh harriers, bearded tits and several scarce plant species. It’s of tremendous importance to local people as a crucial green space. The nature reserve has done nothing to stop Ebbsfleet Garden City from going ahead. What developers were seeking to build on the peninsula was not homes, but a theme park. Boris Johnson’s government, hardly a staunch defender of nature against developers, declared the peninsula a site of special scientific interest, for its wide range of plants, geological features, birds and invertebrates. But Starmer, making it up as he goes along, has reduced the issue to spiders v people.