What’s the Difference Between Cicada and Locust?

FeatureCicadaLocust
Scientific ClassificationCicadoideaAcrididae
Life CyclePeriodic (e.g., 13 or 17 years), AnnualShorter life cycle, varies by species
Swarming BehaviorDoes not swarmSwarming in large groups
DietTree sap, plant fluidsGrass, crops
Sound ProductionMale cicadas produce a loud ‘singing’ soundProduce sound but less prominent
ColorationOften green or brownVaries from green to brown, often more camouflaged
HabitatForests, treesGrasslands, cultivated fields

Overview of Cicadas

Cicadas are fascinating insects belonging to the superfamily Cicadoidea. Known for their distinctive sound, which is often described as a loud buzzing or singing, male cicadas use these calls primarily to attract female mates. There are many species, but they are typically characterized by their large, prominent eyes and stocky bodies. Cicadas undergo a unique life cycle that can span from three to seventeen years, depending on the species. During this time, they spend most of their lives underground in nymph form.

Exploring Locusts

On the other hand, locusts are a type of grasshopper within the family Acrididae. What sets locusts apart is their ability to change behavior and physiology in response to population density. When in swarms, they can devastate crops and vegetation, making them a significant concern for farmers. Locusts generally have a much shorter lifecycle compared to cicadas, often completing their life stages in a matter of weeks. Their diet typically consists of grasses and crops, which can lead to agricultural damage during swarming events.

Distinctive Features and Behaviors

One of the most striking differences between cicadas and locusts is their behavior regarding swarming. While cicadas are solitary and do not exhibit swarming behavior, locusts are known for forming extensive swarms that can travel long distances in search of food. This swarming behavior is triggered by environmental changes and can lead to significant ecological and economic impacts.

Sound and Communication

When it comes to sound production, cicadas are the champions. The male cicadas produce a distinct, loud ‘song’ to attract mates, which can be heard from miles away during summer evenings. Locusts, while they can produce sounds through stridulation (rubbing their wings together), are not known for any distinct mating song that compares to the cicadas’ calls.

Feeding Habits and Diet

In terms of diet, cicadas feed primarily on plant sap and fluids from trees, which they access using their specialized mouthparts. In contrast, locusts are herbivores that consume a variety of grasses, and during swarming periods, they can cause significant crop damage as they consume everything in their path.

Conclusion

In summary, while cicadas and locusts may appear similar at first glance, they represent two very different families of insects with distinct biological and behavioral traits. Cicadas are recognized for their long life cycles and melodious calls, while locusts are notorious for their swarming capabilities and the impactful destruction they can cause. Understanding these differences not only enriches our knowledge of entomology but also aids in appreciating the role these insects play within their ecosystems.

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