The common name for Ochrogaster lunifer larvae – processionary caterpillars – comes from their habit of crawling head-to-tail in congo lines. From late March to June processionary caterpillars leave the nests where they have been living and growing over the warmer months. Going on our observations, and videos and photos posted on social media sites, the main period for processions of caterpillars being seen is late March and early April. Processions may comprise up to 100 caterpillars when they leave their nest, but the lines break up as they move around looking for suitable places to bury themselves for the winter.
