Adult moths survive predation through a combination of behavioral, physical, and chemical adaptations:
- Camouflage and Cryptic Coloration: Many moths have wing patterns and colors that blend with their environment, such as tree bark, leaves, or dead foliage, making them less visible to predators like birds and bats. Some species can even adjust their coloration according to environmental conditions to enhance this camouflage
- Nocturnal Activity: Most moths are active at night, which helps them avoid many daytime predators. Resting motionless during the day further reduces their chances of being detected
- Startle Displays and Mimicry: Some moths have bright, contrasting colors or eye-like patterns on their wings that they reveal suddenly to startle predators. Others mimic unpalatable or dangerous species to deter attacks
- Evasive Flight Maneuvers: Moths exhibit agile and unpredictable flight patterns such as zig-zagging, loops, tight turns, and dives to evade predators, especially echolocating bats. These evasive tactics vary between species and individuals, increasing unpredictability and making it harder for predators to catch them
- Auditory Defenses: Many moths can detect bat echolocation calls and respond with evasive flight or by producing sounds that interfere with the bats' sonar, confusing the predator
- Chemical Defenses: Some moths sequester toxins from plants during their larval stage, making them distasteful or poisonous to predators as adults. For example, the cinnabar moth retains toxins from ragwort plants
- Behavioral Strategies: When threatened, some moths employ thanatosis (playing dead) by dropping to the ground and remaining motionless to avoid detection
These diverse strategies collectively enhance moth survival by reducing detection and capture by predators