Some cicadas such as "Hemisciera maculipennis" display bright deimatic flash coloration on their hind wings when threatened; the sudden contrast helps to startle predators, giving the cicadas time to escape. The majority of cicadas are diurnal and rely on camouflage when at rest, but some species use aposematism-related Batesian mimicry, wearing the bright colors that warn of toxicity in other animals; the Malaysian "Huechys sanguinea" has conspicuous red and black warning coloration, is diurnal, and boldly flies about in full view of possible predators.