Every summer, the buzzing and whirring of insects fills the air, but it can be tricky to tell which sound belongs to which creature. I’ve often found myself wondering about the difference between locust and cicada, especially when their calls overlap in the heat of the season. Both are known for their distinctive noises, but they belong to entirely different families and have unique behaviors. Understanding the difference between locust and cicada isn’t just about identifying sounds—it’s about appreciating their roles in ecosystems and how they interact with their environments.
The Basics: What Are Locusts and Cicadas?
Let’s start with the fundamentals. Locusts are a type of grasshopper belonging to the family Acrididae. They’re known for their swarming behavior, which can devastate crops and vegetation. Cicadas, on the other hand, are part of the family Cicadidae and are famous for their periodic emergence and loud mating calls. The difference between locust and cicada begins here: one is a grasshopper, and the other is not.
Physical Differences: Spotting the Difference Between Locust and Cicada
When it comes to appearance, the difference between locust and cicada is quite noticeable. Locusts have shorter, thicker bodies with powerful hind legs built for jumping. Their coloration often blends into their surroundings, ranging from green to brown. Cicadas, however, have larger, more robust bodies with wide-set eyes and transparent wings that extend beyond their abdomen. Their most distinctive feature? Those large, vein-filled wings that make them look almost otherworldly.
Key Physical Traits:
| Feature | Locust | Cicada |
|---|---|---|
| Body Shape | Short and thick | Large and robust |
| Wings | Short, functional for flight | Long, transparent, and veined |
| Coloration | Green to brown, often camouflaged | Darker, sometimes with iridescent hues |
Behavioral Differences: Swarms vs. Solitary Calls
Behavior is where the difference between locust and cicada becomes most apparent. Locusts are social insects that can form massive swarms, sometimes containing millions of individuals. These swarms can travel long distances and strip fields bare in a matter of hours. Cicadas, however, are solitary creatures, though their emergence in large numbers can make it seem otherwise. They spend most of their lives underground, only emerging to mate and lay eggs.
Notable Behaviors:
- Locusts: Swarming, migratory, and highly destructive to crops.
- Cicadas: Solitary, periodic emergence, and loud mating calls.
📌 Note: While cicadas can emerge in large numbers, they do not swarm like locusts. Their presence is more about reproduction than resource depletion.
Life Cycles: Underground vs. Above Ground
The life cycles of these insects highlight another key difference between locust and cicada. Locusts have a relatively short life cycle, typically lasting a few months, and they reproduce quickly. Cicadas, however, have one of the longest life cycles in the insect world, with some species spending 13 to 17 years underground before emerging as adults. This periodicity is a fascinating adaptation that helps them avoid predators.
Life Cycle Comparison:
| Stage | Locust | Cicada |
|---|---|---|
| Egg to Adult | Few months | 13–17 years (periodic species) |
| Adult Lifespan | Weeks to months | Few weeks |
Sounds: The Buzzing vs. The Whirring
If you’ve ever wondered about the difference between locust and cicada based on sound alone, you’re not alone. Locusts produce a softer, more subtle buzzing noise, often heard when they’re in flight or feeding. Cicadas, however, are the masters of noise. Their loud, high-pitched calls are produced by males to attract females and can reach up to 120 decibels. This is where the difference between locust and cicada becomes most audible.
Ecological Impact: Destruction vs. Nutrient Cycling
The ecological roles of these insects further emphasize the difference between locust and cicada. Locusts are often seen as pests due to their destructive swarming behavior, which can lead to significant agricultural losses. Cicadas, on the other hand, play a beneficial role in ecosystems. Their emergence provides a food source for predators, and their underground nymphs help aerate soil. Additionally, when cicadas die, their bodies decompose and return nutrients to the soil.
Who’s Who: Identifying Locusts and Cicadas in the Wild
In my experience, identifying these insects in the wild comes down to a few key observations. If you see a large, winged insect with transparent wings and hear a loud, rhythmic whirring, it’s likely a cicada. If the insect is smaller, with shorter wings and a more subdued buzzing sound, it’s probably a locust. The difference between locust and cicada becomes clear once you know what to look and listen for.
Understanding the difference between locust and cicada isn’t just an academic exercise—it’s a way to appreciate the diversity of the natural world. Whether you’re dealing with a locust swarm or marveling at the emergence of cicadas, knowing these distinctions can deepen your connection to the environment. Next time you hear that familiar summer buzz, you’ll know exactly who’s making the noise.
Related Terms:
- locust
- cicada
- pictures of locusts and cicadas
- locust sound vs cicada
- cicada bug vs locust
- what do locusts look like