The above unidentified caterpillar was found hanging on our garden fence yesterday. It was dead when spotted and appeared normal at its front end, but the rear was very bloated. It had only recently crawled to the position it was in, as this is a sheltered fence panel and usually attracts insects so I watch it regularly. A leaf was plucked from a nearby plant and the caterpillar was eased off the fence, but as it came off the panel on to the leaf it burst and a quantity grey/white fluid was released. There didn’t appear to be a parasite problem so I guess the larva had succumbed to the cold, wet conditions recently experienced and suffered a bacterial or fungal attack.