What’s the difference between a cicada and a locust? This question often arises during the summer months when these insects become more prevalent. While both are fascinating creatures, they belong to different families and have distinct characteristics that set them apart.
Cicadas and locusts are often confused due to their similar appearance and life cycles. However, they belong to different families within the order Hemiptera. Cicadas are part of the family Cicadidae, while locusts are part of the family Acrididae. This distinction is crucial in understanding their differences.
One of the most noticeable differences between cicadas and locusts is their size. Cicadas are generally larger, with wingspans ranging from 1.5 to 5 inches. On the other hand, locusts are typically smaller, with wingspans ranging from 1 to 3 inches. This size difference can be easily observed when they are flying or perched on trees.
Another key difference lies in their life cycles. Cicadas have a relatively short life span, usually living for only a few weeks to a few months. They undergo a complete metamorphosis, emerging as adults after spending several years as nymphs underground. In contrast, locusts have a longer life span, living for several years before reaching adulthood. They also go through a complete metamorphosis but may have several instars (nymph stages) before reaching maturity.
Cicadas are generally not considered pests, as they do not cause significant damage to crops or property. However, locusts can be a major agricultural threat. When locust populations become overcrowded, they can form swarms and migrate in search of food, devastating crops and causing economic losses. This is a significant difference between the two insects.
In terms of sound, cicadas are known for their unique and loud songs. Male cicadas produce these sounds by rubbing their wings together, which can be heard up to a mile away. This sound serves as a mating call to attract females. Locusts, on the other hand, do not produce such loud and distinctive sounds. Their calls are usually soft and not as noticeable.
Lastly, the reproductive strategies of cicadas and locusts differ. Cicadas typically have a one-to-one sex ratio, meaning that males and females are equally represented. Locusts, however, can have a skewed sex ratio, with a higher number of males than females. This imbalance can affect their mating success and population dynamics.
In conclusion, while cicadas and locusts may seem similar, they are distinct insects with several key differences. Their size, life cycles, impact on agriculture, sounds, and reproductive strategies all contribute to their unique characteristics. Understanding these differences can help us appreciate the diversity of the insect world and the roles these insects play in it.
