This is the amazing scene at Southend Cemetery in Essex UK. Millions of caterpillars spinning their silk webs all over the trees. In their caterpillar stage, the bugs, known as web worms, weave leaves of trees together and eat them. They are bird cherry tree ermine moths and when they emerge fully grown, they become distinctive white moths with five rows of black dots. It gives the cemetery a kind of eerie winter wonderland feel!